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  • 1
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-33,21〈1900〉;KART H 140:Neuenburg
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 036 20 - E 036 30 / N 053 42 - N 053 36.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Nowe ; Neuenburg ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 126
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  • 2
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-25,43〈1921〉;KART H 140:Lüneburg
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 028 00 - E 028 10 / N 053 18 - N 053 12.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Lüneburg ; Geologische Karte ; GeoTIFF ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 66
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  • 3
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140 5203;KART H 140:Stolberg
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Karte aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 023 50 - E 024 00 / N 050 48 - N 050 42.
    Beschreibung: map
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Geologische Karte ; Stolberg ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 92
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  • 4
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140 5204;KART H 140:Lendersdorf
    Publikationsdatum: 2021-07-22
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Karte aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 024 00 - E 024 10 / N 050 48 - N 050 42.
    Beschreibung: map
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Geologische Karte ; Lendersdorf ; GeoTIFF ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 66
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  • 5
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140 5202;KART H 140:Aachen
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Karte aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 023 40 - E 023 50 /N 050 48 - N 050 42.
    Beschreibung: map
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Aachen ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 80
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140:5103;KART H 140:Eschweiler
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Karte aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen.
    Beschreibung: map
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Geologische Karte ; Eschweiler ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 130
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  • 7
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-17,5〈1914〉;KART H 140:Rauschen
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro: E 037 40 - E 037 50 / N 055 00 - N 054 54.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Светлогорск ; GeoTIFF ; Rauschen ; Geologische Karte ; Swetlogorsk ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 164
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  • 8
    Publikationsdatum: 2021-03-29
    Beschreibung: Die meisten Moore in Nordwestdeutschland werden seit mehreren Jahrhunderten landwirtschaftlich genutzt. Die Kultivierungsverfahren der Moore entscheiden, welche Nutzungen möglich sind. Tiefumbruchböden lassen sich vielfältig, überwiegend als Acker nutzen. Auf den Schwarzkulturen dominiert heute die standortgerechte Grünlandnutzung, wobei die nicht standortgerechte, ackerbauliche Nutzung in jüngster Zeit zugenommen hat. Mit zunehmender Intensität der Flächenbewirtschaftung verschlechtern sich die Torfeigenschaften und durch Mineralisierung der Torfe treten Höhenverluste auf. Die Grenzen der Befahrbarkeit bzw. Trittfestigkeit werden häufig erreicht. In der Nährstoffdynamik unterscheiden sich Hoch- und Niedermoore. Bei der extensiven Grünlandnutzung, verbunden mit reduzierter Entwässerungsintensität, bereiten häufig Flatterbinse (Juncus effusus) und Rasenschmiele (Deschampsia caespitosa) Probleme. Neue Nutzungsverfahren der Paludikultur befinden sich noch in der Entwicklung und Erprobung. Eine dauerhafte Sicherung der Produktionsstandorte für landwirtschaftliche Nutzungen ist auf Tiefumbruchböden möglich.
    Beschreibung: report
    Schlagwort(e): 553.21 ; Moor ; land-use ; Landwirtschaft ; peatland ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: article , publishedVersion
    Format: 19
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  • 9
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140:6307;KART H 140:Hermeskeil
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Karte aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 024 30 - E 024 40 / N 049 42 - N 049 36.
    Beschreibung: map
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Geologische Karte ; Hermeskeil ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 26
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-14,31〈1897〉;KART H 140:Rügenwalde
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch die SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 034 00 - E 034 10 / N 054 30 - N 054 24.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Rügenwalde ; Geologische Karte ; Darłowo ; GeoTIFF ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 96
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  • 11
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  Geologisches Institut, Leibniz Universität Hannover | SUB Göttingen | KART H 140:Hermannsburg
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat des Geologischen Instituts der Leibniz Universität Hannover. Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 027 40 - E 027 50 /N 052 54 - N 052 48.
    Beschreibung: map
    Beschreibung: Leibniz Universität Hannover/Geologisches Institut, DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Hermannsburg ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 70
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  • 12
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  Geologisches Institut, Leibniz Universität Hannover | SUB Göttingen | -;KART H 140:Unterlüß
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat des Geologischen Instituts der Leibniz Universität Hannover. Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 027 50 - E 028 00 /N 052 54 - N 052 48.
    Beschreibung: map
    Beschreibung: Leibniz Universität Hannover/Geologisches Institut, DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Unterlüss ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 56
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  • 13
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-18,2〈1914〉;KART H 140:Bledau
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 038 10 - E 038 20 /N 055 00 - N 054 54.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Geologische Karte ; GeoTIFF ; Bledau ; Sosnowka ; Сосновка ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 134
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  • 14
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-18,7〈1914〉;KART H 140:Rudau
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 038 00 - E 038 10 /N 054 54 - N 054 48.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Rudau ; Melnikowo ; Мельниково ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 104
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  • 15
    Publikationsdatum: 2021-03-29
    Beschreibung: Die Bedeutung der Moore als besondere Archive der Natur- und Kulturgeschichte wird beschrieben und im Hinblick auf die Entstehung und Entwicklung der Moorarchäologie in Niedersachsen diskutiert. Unter Einbeziehung der Beschreibung heute in der Moorarchäologie zum Einsatz kommender Arbeitsverfahren, werden die Bedeutung der Moore als Bestandteil früher Lebewelten und sozio-kultureller Prozesse beleuchtet. Abschließend werden die gesetzlichen Möglichkeiten zum Schutz des archäologischen Erbes im Moor aufgezeigt.
    Beschreibung: report
    Schlagwort(e): 553.21 ; Moor ; Archäologie ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: article , publishedVersion
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  • 16
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-18,8〈1914〉;KART H 140:Powunden
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 038 10 - E 038 20 /N 054 54 - N 054 48.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Geologische Karte ; Powunden ; Chrabrowo ; Храброво ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 112
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  • 17
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    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-17,11〈1914〉;KART H 140:Germau
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 037 40 - E 037 50 /N 054 54 - N 054 48.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Geologische Karte ; Germau ; Russkoje ; Русское ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 140
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  • 18
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-17,4〈1914〉;KART H 140:Gr.-Dirschkeim
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 037 30 - E 037 40 /N 055 00 - N 054 54
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Geologische Karte ; Gr. Dirschkeim ; Donskoje ; Донское ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 162
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  • 19
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    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-17,10〈1914〉;KART H 140:Palmnicken
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 037 30 - E 037 40 /N 054 54 - N 054 48.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Geologische Karte ; Palmnicken ; Jantarny ; Янтарный ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 118
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  • 20
    Publikationsdatum: 2021-03-29
    Beschreibung: Subfossile Kiefern werden in vielen Mooren Nordwestdeutschlands gefunden. Durch die Transgression der Moore wurden Kiefern an der Basis der Torfe eingebettet und befinden sich oft am Übergang von Niedermoor- zu Hochmoortorfen. Stubbenhorizonte innerhalb der Torfkörper dokumentieren Bewaldungsphasen der Moore. Durch dendrochronologische Untersuchungen wurden subfossile Kiefern von 40 Fundorten datiert und erstmalig eine Kiefernchronologie für Nordwestdeutschland aufgebaut. Die untersuchten Kiefernhölzer belegen zu bestimmten Zeitabschnitten gehäufte Absterbe- oder Keimungsphasen sowie signifikante Änderungen der Jahrringbreiten der Hölzer aus verschiedenen Mooren. Teilweise zeichnen sich auch bei den früher bearbeiteten subfossilen Eichen zeitparallel entsprechende Phasen ab, so dass diese Signale, klimatisch verursacht, als Abbild von Vernässungsphasen angesehen werden.
    Beschreibung: research
    Schlagwort(e): 553.21 ; Moor ; Dendroökologie ; Dendrochronologie ; Pinus ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: article , publishedVersion
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  • 21
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    Unbekannt
    Kraatz, Berlin
    In:  Geologisches Institut, Leibniz Universität Hannover | SUB Göttingen | KART H 140:Lüneburg
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat des Geologischen Instituts der Leibniz Universität Hannover. Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 028 00 - E 028 10 / N 053 18 - N 053 12.
    Beschreibung: map
    Beschreibung: Leibniz Universität Hannover/Geologisches Institut, DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Lüneburg ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 66
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  • 22
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    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-17,12〈1914〉;KART H 140:Pobethen
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 037 50 - E 038 00 /N 054 54 - N 054 48.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Geologische Karte ; Pobethen ; Romanowo ; Романово ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 108
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  • 23
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140:6208;KART H 140:Morscheid
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Karte aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 024 40 – 024 50 / N 049 48 - 049 42.
    Beschreibung: map
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Morscheid ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 30
    Standort Signatur Erwartet Verfügbarkeit
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  • 24
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140:6209;KART H 140:Oberstein
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Karte aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 024 50 – E 025 00 / N 049 48 - N 049 42.
    Beschreibung: map
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Geologische Karte ; Oberstein ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 66
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  • 25
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140:6308;KART H 140:Buhlenberg
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Karte aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 024 40 – E 024 50 / N 049 42 - N 049 36.
    Beschreibung: map
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Geologische Karte ; Buhlenberg ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 50
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  • 26
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140:5527;KART H 140:Ostheim
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Karte aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 027 50 – E 028 00 / N 050 30 – N 050 24.
    Beschreibung: map
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Geologische Karte ; Ostheim v. d. Rhön ; Mellrichstadt ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 58
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  • 27
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140:5525;KART H 140:Gersfeld
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Karte aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 027 30 – E 027 40 / N 050 30 – N 050 24.
    Beschreibung: map
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Geologische Karte ; Gersfeld ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 48
    Standort Signatur Erwartet Verfügbarkeit
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  • 28
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-17,6〈1914〉;KART H 140:Neukuhren
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 037 50 - E 038 00 /N 055 00 - N 054 54.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Geologische Karte ; Neukuhren ; Pionerski ; Пионерский ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 126
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  • 29
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-14,39〈1897〉;KART H 140:Schlawe
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 034 20 - E 034 30 / N 054 24 - N 054 18.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Sławno ; Schlawe ; Geologische Karte ; GeoTIFF ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 110
    Standort Signatur Erwartet Verfügbarkeit
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  • 30
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    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | Kart. W 15710-57,39〈1874〉
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000. Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Koordinaten Vorlage: Nullmeridian Ferro E 029 - 030 / N 051 – 052.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB)
    Schlagwort(e): 912 ; 554.3 ; Schafstädt ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 1
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  • 31
    Publikationsdatum: 2021-03-29
    Beschreibung: We focus on new gravity and gravity gradient data sets from modern satellite missions GOCE, GRACE and CHAMP, and their geophysical interpretation at passive continental margins of the South Atlantic. Both sides, South Africa and South America, have been targets of hydrocarbon exploration and academic research of the German Priority Program SAMPLE (South Atlantic Margin Processes and Links with onshore Evolution). The achievable spatial resolution, driven by GOCE, is 70–80 km. Therefore, most of the geological structures, which cause a significant gravity effect (by both size and density contrast), can be resolved. However, one of the most important aspects is the evaluation of the omission error, which is not always in the focus of interpreters. It results from high-frequency signals of very rough topographic and bathymetric structures, which cannot be resolved by satellite gravimetry due to the exponential signal attenuation with altitude. The omission error is estimated from the difference of the combined gravity model EIGEN-6C4 and the satellite-only model GOCO05S. It can be significantly reduced by topographic reductions. Simple 2D density models and their related mathematical formulas provide insights in the magnitude of the gravity effect of masses that form a passive continental margin. They are contrasted with results from satellite-only and combined gravity models. Example geophysical interpretations are given for the western and eastern margin of the South Atlantic Ocean, where standard deviations vary from 25 to 16 mGal and 21–11 mGal, respectively. It could be demonstrated, that modern satellite gravity data provide significant added value in the geophysical gravity data processing domain and in the validation of heterogeneous terrestrial data bases. Combined models derived from high-resolution terrestrial gravity and homogeneous satellite data will lead to more detailed and better constrained lithospheric density models, and hence will improve our knowledge about structure, evolution and state of stress in the lithosphere.
    Beschreibung: DFG
    Beschreibung: research
    Schlagwort(e): 551.1 ; 550.28 ; 550 ; TQI 000 ; Satelliten-Geophysik ; Combination of terrestrial and satellite gravity ; Satellite gravity and gradients ; 2nd derivation of satellite gravity ; FID-GEO-DE-7
    Sprache: Englisch
    Materialart: article , publishedVersion
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  • 32
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140:5102;KART H 140:Herzogenrath
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Karte aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 023 40 - E 023 50 / N 050 54 - N 050 48.
    Beschreibung: map
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Geologische Karte ; Herzogenrath ; GeoTIFF ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 86
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  • 33
    facet.materialart.
    Unbekannt
    Kraatz, Berlin
    In:  SUB Göttingen | KART B 140:5104;KART H 140:Düren
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), Karte aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 024 00 - E 024 10 / N 050 54 - N 050 48.
    Beschreibung: map
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Geologische Karte ; Düren ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 92
    Standort Signatur Erwartet Verfügbarkeit
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  • 34
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    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-18,1〈1914〉;KART H 140:Kranz
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. GeoTIFF erstellt durch FID GEO, SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 038 00 - E 038 10 /N 055 00 - N 054 54.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Geologische Karte ; GeoTIFF ; Cranz ; Selenogradsk ; Зеленоградск ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 110
    Standort Signatur Erwartet Verfügbarkeit
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  • 35
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    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-33,22〈1900〉;KART H 140:Garnsee
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 036 30 - E 036 40 / N 053 42 - N 053 36.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Gardeja ; Garnsee ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 128
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  • 36
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    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-33,16〈1882〉;KART H 140:Marienwerder
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 036 30 - E 036 40 / N 053 48 - N 053 42.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Marienwerder ; Kwidzyn ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 144
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  • 37
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    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-33,15〈1889〉;KART H 140:Münsterwalde
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. koordinaten Vorlage: Nullmeridian Ferro E 036 20 - E 036 30 / N 053 48 - N 053 42.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Opalenie ; Münsterwalde ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 110
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  • 38
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    Unbekannt
    Kraatz, Berlin
    In:  Staatsbibliothek Berlin (SBB) | SUB Göttingen | Kart. W 15710-33,29〈1898〉;KART H 140:Lessen
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat der Staatsbibliothek Berlin (SBB), bereitgestellt durch den Fachinformationsdienst Kartographie und Geobasisdaten (FID Karten). Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 036 40 - E 036 50 / N 053 36 - N 053 30.
    Beschreibung: map
    Beschreibung: Staatsbibliothek Berlin (SBB), DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; Łasin ; Lessen ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 102
    Standort Signatur Erwartet Verfügbarkeit
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  • 39
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    Unbekannt
    Kraatz, Berlin
    In:  Geologisches Institut, Leibniz Universität Hannover | SUB Göttingen | KART H 140:Celle
    Publikationsdatum: 2021-06-02
    Beschreibung: Geologische Karte 1: 25 000 mit Erläuterungen. Die Karte ist ein Digitalisat des Geologischen Instituts der Leibniz Universität Hannover. Das Erläuterungsheft ist ein Digitalisat des FID GEO (Fachinformationsdienst Geowissenschaften der festen Erde), erstellt durch das GDZ (Göttinger Digitalisierungszentrum), aus dem Bestand der SUB Göttingen. Koordinaten Vorlage: Nullmeridian Ferro E 027 40 - E 027 50 /N 052 42 - N 052 36.
    Beschreibung: map
    Beschreibung: Leibniz Universität Hannover/Geologisches Institut, DFG, SUB Göttingen
    Schlagwort(e): 912 ; 554.3 ; GeoTIFF ; Celle ; Geologische Karte ; FID-GEO-DE-7
    Sprache: Deutsch
    Materialart: map_digi
    Format: 74
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  • 40
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    Unbekannt
    Geounion Alfred-Wegener-Stiftung, Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2021-08-30
    Beschreibung: This volume contains the program, abstracts and field guides of the centenary meeting of the Paläontologische Gesellschaft (September 2012, Berlin). The topics of the symposia are: •The Alfred Wegener Centennial Symposium: The Idea that Changed the World – 100 Years of Continental Drift •Biodiversity in the Fossil Record – Going Beyond How Many Taxa •Frontiers in Geobiology •Stories from the Past – Reading Biomineralized Diaries •New Challenges in Micropalaeontology – Going Beyond the Standards •Evolution, Development, and Developmental Paleontology – the Interplay of Ontogenetic and Deep Time •Anomalies and Pathologies – the Other Sources of Variation •Taphonomy – Preservation of Ecological and Biogeographic Attributes in the Sedimentary Record •Bridging the Gap – Cross-Discipline Research in Biology and Palaeontology •The Cambrian Bioradiation of Metazoa – an Interdisciplinary Approach •Climate Change and Biodiversity Patterns in the Mid-Paleozoic (IGCP 596) •The Triassic – Organismic Evolution Between Two Mass Extinction Events •The Early Evolution of Tetrapods and their Ecosystems •Tendaguru and Beyond – Vertebrates in Jurassic Terrestrial Ecosystems •Biological Factors of Sauropod Gigantism •Mammalian Dentitions – Diversity, Form, and Function •Amber as a Window to Terrestrial Palaeoecosystems •More than just Wet Feet – Tetrapod Transitions from Land to Sea and Hot Spots of Marine Tetrapod Evolution •The Evolution of Modern African Biogeography •Gymnosperm Evolution – Major Events and Mysteries •The Development of Modern Vegetation Belts During the Cretaceous and Tertiary •Öffentlichkeitsarbeit – Vernetzung oder Abgrenzung? •The Young Palaeontologist Award •Open Symposia •Tilly-Edinger Award
    Beschreibung: conference
    Schlagwort(e): 560 ; Paläontologie ; Paläontologische Gesellschaft ; Paläontologie ; Kongress ; Berlin 2012 ; paleontology ; FID-GEO-DE-7
    Sprache: Englisch
    Materialart: anthology , publishedVersion
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  • 41
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    Unbekannt
    GeoUnion, Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2021-08-30
    Beschreibung: During the past years there has been a great amount of new publications on varved sediment records, some of them describing methodological developments and others forming a basis of interpretation of climate and environmental change of mainly postglacial times. In many studies, the varve chronologies of lacustrine and marine sediments form a solid basis of dating, not to mention the environmental and climate signal that is stored in varves and laminae they contain. Since two years a step forward has been taken and the varve community is gathering during annual Varves Working Group (VWG) workshops to summarize what has been accomplished during the past decade and to exchange new ideas and promote their use in global climate reconstructions. The VWG has formed under the frame of the PAGES cross cutting theme 1 (CCT1) “Chronology” and CCT2 “Proxy development, calibration, validation” to address a number of topics with workshops and products. The main topics of the VWG include: •Methodological developments •Marine versus lacustrine varves •Varve chronologies, including quantification of age uncertainties •Calibration of archived climatic and environmental signals •Database management •Data processing •Learning from other annually resolved archives.
    Beschreibung: conference
    Schlagwort(e): 551 ; Rhythmite {Sedimentologie} ; Warvenmethoden ; Instrumentelle Ergebnisse zu Klimaänderungen und Klimaschwankungen ; Warve ; Rhythmit ; Warvenchronologie ; Kongress ; Manderscheid 2012 ; varve ; FID-GEO-DE-7
    Sprache: Englisch
    Materialart: anthology , publishedVersion
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  • 42
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    Unbekannt
    GeoUnion Alfred-Wegener-Stifung, Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2021-08-30
    Beschreibung: This 4th International PASADO Workshop is related to the research initiative “Potrok Aike Lake Sediment Archive Drilling Project” (PASADO) within the framework of the “International Continental Scientific Drilling Programme” (ICDP). PASADO addresses challenging issues of geoscientific and socioeconomic relevance related to Earth history and climate like qualitative and quantitative climatic and environmental reconstruction as well as reconstruction of the palaeosecular variation of the Earth's magnetic field but also natural hazards like fire history, frequency of volcanic activity including tephra fallout and dust deposition. The history of volcanic activities for the last ca. 50,000 years is another interesting topic. Moreover, dust and tephra records provide links of this unique southern hemispheric terrestrial record to marine sediment archives and to ice cores from Antarctica. Finally, obtained reconstructions of climate variability will be compared statistically with the output of Global Circulation Model (GCM) simulations to improve our understanding of forcing mechanisms of the global climate.
    Beschreibung: conference
    Schlagwort(e): 551 ; Geologische Bohrungen in einzelnen Regionen ; Argentinien {Geologie} ; Sedimente bestimmter Regionen ; Paläolimnologie {Geologie} ; Argentina ; sediments ; palaeoclimate ; palaeoenvironment ; tephra ; volcanism ; FID-GEO-DE-7
    Sprache: Englisch
    Materialart: anthology , publishedVersion
    Standort Signatur Erwartet Verfügbarkeit
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  • 43
    facet.materialart.
    Unbekannt
    GeoUnion Alfred-Wegener-Stifung, Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2021-08-30
    Beschreibung: The understanding of early agrarian economies and their impact on landscapes and natural environments has become a major goal of many large-scale projects. The shaping of cultural landscapes by the spread of agriculture, animal husbandry and the building of settlements has been the most influential development since the beginning of agriculture more than 10.000 years ago. Sessions: •Gathering, Cultivation and Domestication •Ethnobotanical approaches •Methods and Analytical Archaeobotany •Regional and Historical Archaeobotany •Origins of agriculture in the Near East.
    Beschreibung: conference
    Schlagwort(e): 561 ; Palaeophytogeographie {Paläobotanik} ; Holozän {Paläobotanik} ; Ethnobotanik. Ethnozoologie {Ethnologie} ; Paläoethnobotanik ; Archäobotanik ; Kongress ; archaeobotany ; palaeoethnobotany ; agriculture ; palaeoenvironment ; Holocene ; human impact ; FID-GEO-DE-7
    Sprache: Englisch
    Materialart: anthology , publishedVersion
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  • 44
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    Unbekannt
    GeoUnion Alfred-Wegener-Stifung, Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2021-08-30
    Beschreibung: This 2nd International PASADO Workshop is based on the research initiative “Potrok Aike Lake Sediment Archive Drilling Project” (PASADO) within the framework of the “International Continental Scientific Drilling Programme” (ICDP). PASADO addresses several challenging issues of geoscientific and socioeconomic relevance related to Earth history and climate like qualitative and quantitative climatic and environmental reconstruction as well as reconstruction of the palaeosecular variation of the Earth's magnetic field and natural hazards like fire history, frequency of volcanic activity including tephra fallout or dust deposition. The history of volcanic activities for the last ca. 50,000 years is another interesting topic. Moreover, dust and tephra records will provide means to link this unique southern hemispheric terrestrial record to marine sediment archives and to ice cores from Antarctica. Finally, obtained reconstructions of climate variability will be compared statistically with the output of Global Circulation Model (GCM) simulations to improve our understanding of forcing mechanisms of the global climate.
    Beschreibung: conference
    Schlagwort(e): 551 ; Geologische Bohrungen in einzelnen Regionen ; Argentinien {Geologie} ; Sedimente bestimmter Regionen ; sediments ; Argentina ; palaeoenvironment ; palaeoclimate ; tephra ; volcanism ; FID-GEO-DE-7
    Sprache: Englisch
    Materialart: anthology , publishedVersion
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  • 45
    Publikationsdatum: 2019-07-20
    Beschreibung: n the catchments of the Rocky Mountains, peak snowpack is declining in response to warmer spring temperatures. To understand how this will influence terrestrial gross primary production (GPP), we compared precipitation data across the intermountain west with satellite retrievals of solar-induced fluorescence (SIF), a proxy for GPP. Annual precipitation patterns explained most of the spatial and temporal variability of SIF, but the slope of the response was dependent on site to site differences in the proportion of snowpack to summer rain. We separated the response of SIF to different seasonal precipitation amounts and found that SIF was approximately twice as sensitive to variations in summer rain than snowpack. The response of peak GPP to a secular decline in snowpack will likely be subtle, whereas a change in summer rain amount will have precipitous effects on GPP. The study suggests that the rain use efficiency of Rocky Mountain ecosystems is strongly dependent on precipitation form and timing.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN51484 , Geophysical Research Letters (ISSN 0094-8276) (e-ISSN 1944-8007); 44; 8; 3643-3652
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  • 46
    Publikationsdatum: 2019-07-12
    Beschreibung: The GEOS modeling system has been extended with state of the art parameterization of dust emissions based on the vertical flux formulation described in Kok et al 2014. The new dust scheme was coupled with the GOCART and MAM aerosol models. In the present study we compare dust emissions, aerosol optical depth (AOD) and radiative fluxes from GEOS experiments with the standard and new dust emissions. AOD from the model experiments are also compared with AERONET and satellite based data. Based on this comparative analysis we concluded that the new parameterization improves the GEOS capability to model dust aerosols originating from African sources, however it lead to overestimation of dust emissions from Asian and Arabian sources. Further regional tuning of key parameters controlling the threshold friction velocity may be required in order to achieve more definitive and uniform improvement in the dust modeling skill.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN50619 , 2017 AGU Fall Meeting; New Orleans, LA; United States
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  • 47
    Publikationsdatum: 2019-07-13
    Beschreibung: The gross primary production (GPP) of vegetation in urban areas plays an important role in the study of urban ecology. It is difficult however, to accurately estimate GPP in urban areas, mostly due to the complexity of impervious land surfaces, buildings, vegetation, and management. Recently, we used the Vegetation Photosynthesis Model (VPM), climate data, and satellite images to estimate the GPP of terrestrial ecosystems including urban areas. Here, we report VPM-based GPP (GPPvpm) estimates for the world's ten most populous megacities during 2000-2014. The seasonal dynamics of GPPvpm during 2007-2014 in the ten megacities track well that of the solar-induced chlorophyll fluorescence (SIF) data from GOME-2 at 0.5deg x 0.5deg resolution. Annual GPPvpm during 2000-2014 also shows substantial variation among the ten megacities, and year-to-year trends show increases, no change, and decreases. Urban expansion and vegetation collectively impact GPP variations in these megacities. The results of this study demonstrate the potential of a satellite-based vegetation photosynthesis model for diagnostic studies of GPP and the terrestrial carbon cycle in urban areas.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN51453 , Scientific Reports (ISSN 2045-2322); 7; 1; 14963
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  • 48
    Publikationsdatum: 2019-07-13
    Beschreibung: Mechanisms such as ice-shelf hydrofracturing and ice-cliff collapse may rapidly increase discharge from marine-based ice sheets. Here, we link a probabilistic framework for sea-level projections to a small ensemble of Antarctic ice-sheet (AIS) simulations incorporating these physical processes to explore their influence on global-mean sea-level (GMSL) and relative sea-level (RSL). We compare the new projections to past results using expert assessment and structured expert elicitation about AIS changes. Under high greenhouse gas emissions (Representative Concentration Pathway [RCP] 8.5), median projected 21st century GMSL rise increases from 79 to 146 cm. Without protective measures, revised median RSL projections would by 2100 submerge land currently home to 153 million people, an increase of 44 million. The use of a physical model, rather than simple parameterizations assuming constant acceleration of ice loss, increases forcing sensitivity: overlap between the central 90% of simulations for 2100 for RCP 8.5 (93-243 cm) and RCP 2.6 (26-98 cm) is minimal. By 2300, the gap between median GMSL estimates for RCP 8.5 and RCP 2.6 reaches 〉10 m, with median RSL projections for RCP 8.5 jeopardizing land now occupied by 950 million people (versus 167 million for RCP 2.6). The minimal correlation between the contribution of AIS to GMSL by 2050 and that in 2100 and beyond implies current sea-level observations cannot exclude future extreme outcomes. The sensitivity of post-2050 projections to deeply uncertain physics highlights the need for robust decision and adaptive management frameworks.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN50811 , Earth's Future (ISSN 2328-4277); 5; 12; 1217–1233
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  • 49
    Publikationsdatum: 2019-07-13
    Beschreibung: Fossil fuel carbon dioxide (CO2) emissions (FFCO2) are the largest input to the global carbon cycle on a decadal time scale. Because total emissions are assumed to be reasonably well constrained by fuel statistics, FFCO2 often serves as a reference in order to deduce carbon uptake by poorly understood terrestrial and ocean sinks. Conventional atmospheric CO2 flux inversions solve for spatially explicit regional sources and sinks and estimate land and ocean fluxes by subtracting FFCO2. Thus, errors in FFCO2 can propagate into the final inferred flux estimates. Gridded emissions are often based on disaggregation of emissions estimated at national or regional level. Although national and regional total FFCO2 are well known, gridded emission fields are subject to additional uncertainties due to the emission disaggregation. Assessing such uncertainties is often challenging because of the lack of physical measurements for evaluation. We first review difficulties in assessing uncertainties associated with gridded FFCO2 emission data and present several approaches for evaluation of such uncertainties at multiple scales. Given known limitations, inter-emission data differences are often used as a proxy for the uncertainty. The popular approach allows us to characterize differences in emissions, but does not allow us to fully quantify emission disaggregation biases. Our work aims to vicariously evaluate FFCO2 emission data using atmospheric models and measurements. We show a global simulation experiment where uncertainty estimates are propagated as an atmospheric tracer (uncertainty tracer) alongside CO2 in NASA's GEOS model and discuss implications of FFCO2 uncertainties in the context of flux inversions. We also demonstrate the use of high resolution urban CO2 simulations as a tool for objectively evaluating FFCO2 data over intense emission regions. Though this study focuses on FFCO2 emission data, the outcome of this study could also help improve the knowledge of similar gridded emissions data for non-CO2 compounds with similar emission characteristics.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN50625 , American Geophysical Union (AGU) 2017 Fall Meeting; Dec 11, 2017 - Dec 15, 2017; New Orleans, LA; United States
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  • 50
    Publikationsdatum: 2019-07-13
    Beschreibung: Observations from recent soil moisture missions (e.g. SMOS) have been used in innovative data assimilation studies to provide global high spatial (i.e. 40 km) and temporal resolution (i.e. 3-days) soil moisture profile estimates from microwave brightness temperature observations. In contrast with microwave-based satellite missions that are only sensitive to near-surface soil moisture (0 - 5 cm), the Gravity Recovery and Climate Experiment (GRACE) mission provides accurate measurements of the entire vertically integrated terrestrial water storage column but, it is characterized by low spatial (i.e. 150,000 km2) and temporal (i.e. monthly) resolutions. Data assimilation studies have shown that GRACE-TWS primarily affects (in absolute terms) deeper moisture storages (i.e., groundwater). This work hypothesizes that unprecedented soil water profile accuracy can be obtained through the joint assimilation of GRACE terrestrial water storage and SMOS brightness temperature observations. A particular challenge of the joint assimilation is the use of the two different types of measurements that are relevant for hydrologic processes representing different temporal and spatial scales. The performance of the joint assimilation strongly depends on the chosen assimilation methods, measurement and model error spatial structures. The optimization of the assimilation technique constitutes a fundamental step toward a multi-variate multi-resolution integrative assimilation system aiming to improve our understanding of the global terrestrial water cycle.
    Schlagwort(e): Geosciences (General)
    Materialart: Poster ID: H51E-1311 , GSFC-E-DAA-TN50421 , AGU Fall Meeting; Dec 11, 2017 - Dec 15, 2017; New Orleans, LA; United States
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  • 51
    Publikationsdatum: 2019-07-13
    Beschreibung: There is abundant evidence for liquid water on early Mars, but the debate remains whether early Mars was warm and wet or cold and icy with punctuated periods of melting. To further investigate the hypothesis of a cold and icy early Mars, we collected rocks and sediments from the Collier and Diller glacial valleys in the Three Sisters volcanic complex in Oregon. We analyzed rocks and sediments with X-ray diffraction (XRD), scanning and transmission electron microscopies with energy dispersive spectroscopy (SEM, TEM, EDS), and visible, short-wave infrared (VSWIR) and thermal-IR (TIR) spectroscopies to characterize chemical weathering and sediment transport through the valleys. Here, we focus on the composition and mineralogy of the weathering products and how they compare to those identified on the martian surface. Phyllosilicates (smectite), zeolites, and poorly crystalline phases were discovered in pro- and supra-glacial sediments, whereas Si-rich regelation films were found on hand samples and boulders in the proglacial valleys. Most phyllosilicates and zeolites are likely detrital, originating from hydrothermally altered units on North Sister. TEM-EDS analyses of the 〈2 um size fraction of glacial flour samples demonstrate a variety of poorly crystalline (i.e., no long-range crystallographic order) phases: iron oxides, devitrified volcanic glass, and Fe-Si-Al phases. The CheMin XRD on the Curiosity rover in Gale crater has identified significant amounts of X-ray amorphous materials in all samples measured to date. The amorphous component is likely a combination of silicates, iron oxides, and sulfates. Although we have not yet observed amorphous sulfate in the samples from Three Sisters, the variety of poorly crystalline weathering products found at this site is consistent with the variable composition of the X-ray amorphous component identified by CheMin. We suggest that these amorphous phases on Mars could have formed in a similarly cold and icy environment.
    Schlagwort(e): Geosciences (General)
    Materialart: JSC-CN-40598 , Annual Meeting of the Geological Society of America (GSA 2017); Oct 22, 2017 - Oct 25, 2017; Seattle, WA; United States
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  • 52
    facet.materialart.
    Unbekannt
    In:  CASI
    Publikationsdatum: 2019-07-13
    Beschreibung: Over the last 10-15 years, significant advances have been made in information management, there are an increasing number of individuals entering the field of information management as it applies to Geoscience and Remote Sensing data, and the field of informatics has come to its own. Informatics is the science and technology of applying computers and computational methods to the systematic analysis, management, interchange, and representation of science data, information, and knowledge. Informatics also includes the use of computers and computational methods to support decision making and applications. Earth Science Informatics (ESI, a.k.a. geoinformatics) is the application of informatics in the Earth science domain. ESI is a rapidly developing discipline integrating computer science, information science, and Earth science. Major national and international research and infrastructure projects in ESI have been carried out or are on-going. Notable among these are: the Global Earth Observation System of Systems (GEOSS), the European Commissions INSPIRE, the U.S. NSDI and Geospatial One-Stop, the NASA EOSDIS, and the NSF DataONE, EarthCube and Cyberinfrastructure for Geoinformatics. More than 18 departments and agencies in the U.S. federal government have been active in Earth science informatics. All major space agencies in the world, have been involved in ESI research and application activities. In the United States, the Federation of Earth Science Information Partners (ESIP), whose membership includes over 180 organizations (government, academic and commercial) dedicated to managing, delivering and applying Earth science data, has been working on many ESI topics since 1998. The Committee on Earth Observation Satellites (CEOS)s Working Group on Information Systems and Services (WGISS) has been actively coordinating the ESI activities among the space agencies.The talk will present an overview of current efforts in ESI, the role members of IEEE GRSS play, and discuss recent developments in data preservation and provenance.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN45815 , IEEE Geoscience and Remote Sensing Distinguished Lecturer Program; Sep 28, 2017; Melbourne, FL; United States
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  • 53
    Publikationsdatum: 2019-07-13
    Beschreibung: CR chondrites are the group of carbonaceous chondrites that preserve records of formation of their components in the solar nebula. Although they are affected by aqueous alteration, many chondrules and CAIs are well-preserved, suggesting they have experienced little thermal metamorphism. We have been investigating the petrologic variations among the CR chondrites in Japanese-NIPR Antarctic meteorite collection. Especially we focused on the petrology of amoeboid olivine aggregates (AOAs) in order to understand secondary alteration on CR chondrite parent body. AOAs are composed of fine-grained forsteritic olivine and refractory minerals formed by condensation from solar nebula, and can be used as sensitive indicators of secondary alteration processes.
    Schlagwort(e): Geosciences (General)
    Materialart: JSC-CN-40532 , Symposium on Antarctic Meteorites; Dec 05, 2017 - Dec 08, 2017; Tokyo; Japan
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  • 54
    Publikationsdatum: 2019-07-13
    Beschreibung: Variability and trend studies of sea ice in the Arctic have been conducted using products derived from the same raw passive microwave data but by different groups using different algorithms. This study provides consistency assessment of four of the leading products, namely, Goddard Bootstrap (SB2), Goddard NASA Team (NT1), EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSI-SAF 1.2), and Hadley HadISST 2.2 data in evaluating variability and trends in the Arctic sea ice cover. All four provide generally similar ice patterns but significant disagreements in ice concentration distributions especially in the marginal ice zone and adjacent regions in winter and meltponded areas in summer. The discrepancies are primarily due to different ways the four techniques account for occurrences of new ice and meltponding. However, results show that the different products generally provide consistent and similar representation of the state of the Arctic sea ice cover. Hadley and NT1 data usually provide the highest and lowest monthly ice extents, respectively. The Hadley data also show the lowest trends in ice extent and ice area at negative 3.88 percent decade and negative 4.37 percent decade, respectively, compared to an average of negative 4.36 percent decade and negative 4.57 percent decade for all four. Trend maps also show similar spatial distribution for all four with the largest negative trends occurring at the Kara/Barents Sea and Beaufort Sea regions, where sea ice has been retreating the fastest. The good agreement of the trends especially with updated data provides strong confidence in the quantification of the rate of decline in the Arctic sea ice cover.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN46491 , Journal of Geophysical Research:Oceans (ISSN 2169-9275); 122; 8; 6883-6900
    Format: text
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  • 55
    Publikationsdatum: 2019-07-13
    Beschreibung: Anthropogenic nitrogen (N) emissions to the atmosphere have increased significantly the deposition of nitrate (NO3-) and ammonium (NH4+) to the surface waters of the open ocean, with potential impacts on marine productivity and the global carbon cycle. Global-scale understanding of the impacts of N deposition to the oceans is reliant on our ability to produce and validate models of nitrogen emission, atmospheric chemistry, transport and deposition. In this work, approx. 2900 observations of aerosol NO3- and NH4+ concentrations, acquired from sampling aboard ships in the period 1995-2012, are used to assess the performance of modeled N concentration and deposition fields over the remote ocean. Three ocean regions (the eastern tropical North Atlantic, the northern Indian Ocean and northwest Pacific) were selected, in which the density and distribution of observational data were considered sufficient to provide effective comparison to model products. All of these study regions are affected by transport and deposition of mineral dust, which alters the deposition of N, due to uptake of nitrogen oxides (NOx) on mineral surfaces. Assessment of the impacts of atmospheric N deposition on the ocean requires atmospheric chemical transport models to report deposition fluxes, however these fluxes cannot be measured over the ocean. Modelling studies such as the Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP), which only report deposition flux are therefore very difficult to validate for dry deposition. Here the available observational data were averaged over a 5deg x 5deg grid and compared to ACCMIP dry deposition fluxes (ModDep) of oxidised N (NOy) and reduced N (NHx) and to the following parameters from the TM4-ECPL (TM4) model: ModDep for NOy, NHx and particulate NO3- and NH4+, and surface-level particulate NO3- and NH4+ concentrations. As a model ensemble, ACCMIP can be expected to be more robust than TM4, while TM4 gives access to speciated parameters (NO3- and NH4+) that are more relevant to the observed parameters and which are not available in ACCMIP. Dry deposition fluxes (CalDep) were calculated from the observed concentrations using estimates of dry deposition velocities. Model observation ratios, weighted by grid-cell area and numbers of observations, (RA,n) were used to assess the performance of the models. Comparison in the three study regions suggests that TM4 over-estimates NO3- concentrations (RA,n = 1.4-2.9) and under-estimates NH4+ concentrations (RA,n = 0.5- 0.7), with spatial distributions in the tropical Atlantic and northern Indian Ocean not being reproduced by the model. In the case of NH4+ in the Indian Ocean, this discrepancy was probably due to seasonal biases in the sampling. Similar patterns were observed in the various comparisons of CalDep to ModDep (RA,n = 0.6- 2.6 for NO3-, 0.6-3.1 for NH4+). Values of RA,n for NHx CalDep - ModDep comparisons were approximately double the corresponding values for NH4+ CalDep - ModDep comparisons due to the significant fraction of gas- phase NH3 deposition incorporated in the TM4 and ACCMIP NHx model products. All of the comparisons suffered due to the scarcity of observational data and the large uncertainty in dry deposition velocities used to derive deposition fluxes from concentrations. (abstract is longer than the allotted space).
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN45188 , Atmospheric Chemistry and Physics (ISSN 1680-7316) (e-ISSN 1680-7324); 17; 13; 8189-8210
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  • 56
    Publikationsdatum: 2019-07-13
    Beschreibung: The surface mass balance (SMB) of the Larsen C ice shelf (LCIS), Antarctica, is poorly constrained due to a dearth of in situ observations. Combining several geophysical techniques, we reconstruct spatial and temporal patterns of SMB over the LCIS. Continuous time series of snow height (2.5-6 years) at five locations allow for multi-year estimates of seasonal and annual SMB over the LCIS. There is high interannual variability in SMB as well as spatial variability: in the north, SMB is 0.40+/-0.06 to 0.41+/-0.04mw.e.year1, while farther south, SMB is up to 0.50+/-0.05mw.e.year1. This difference between north and south is corroborated by winter snow accumulation derived from an airborne radar survey from 2009, which showed an average snow thickness of 0.34mw.e. north of 66 deg S, and 0.40mw.e. south of 68 deg S. Analysis of ground-penetrating radar from several field campaigns allows for a longer-term perspective of spatial variations in SMB: a particularly strong and coherent reflection horizon below 25-44m of water-equivalent ice and firn is observed in radargrams collected across the shelf. We propose that this horizon was formed synchronously across the ice shelf. Combining snow height observations, ground and airborne radar, and SMB output from a regional climate model yields a gridded estimate of SMB over the LCIS. It confirms that SMB increases from north to south, overprinted by a gradient of increasing SMB to the west, modulated in the west by fhn-induced sublimation. Previous observations show a strong decrease in firn air content toward the west, which we attribute to spatial patterns of melt, refreezing, and densification rather than SMB.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN49769 , Cryosphere (ISSN 1994-0416) (e-ISSN 1994-0424); 11; 6; 2411-2426
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  • 57
    Publikationsdatum: 2019-07-13
    Beschreibung: No abstract available
    Schlagwort(e): Geosciences (General)
    Materialart: MSFC-E-DAA-TN43388 , International Geoscience and Remote Sensing Symposium (IGARSS); Jul 23, 2017 - Jul 28, 2017; Fort Worth, TX; United States
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  • 58
    Publikationsdatum: 2019-07-13
    Beschreibung: Performance of a radiometer DBE is analyzed. The particular design corresponds to the DBE of the airborne Hurricane Imaging Radiometer. A computer simulator is developed to analyze effect of input power on various DBE output products. 2nd moment non-linearity is found to be negligible in the expected input signal dynamic range. Observed scaling between I and Q channels and the scaling among cross-correlation signals are verified by the simulator. Kurtosis sensitivity can be improved by lowering the input power - predicted by the simulator and verified in the lab.
    Schlagwort(e): Geosciences (General)
    Materialart: MSFC-E-DAA-TN44121 , International Geoscience and Remote Sensing Symposium (IGARSS); Jul 23, 2018 - Jul 28, 2018; Forth Worth, TX; United States
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  • 59
    Publikationsdatum: 2019-07-13
    Beschreibung: Multimodel ensembles are often used to produce ensemble mean estimates that tend to have increased simulation skill over any individual model output. If multimodel outputs are too similar, an individual LSM would add little additional information to the multimodel ensemble, whereas if the models are too dissimilar, it may be indicative of systematic errors in their formulations or configurations. The article presents a formal similarity assessment of the North American Land Data Assimilation System (NLDAS) multimodel ensemble outputs to assess their utility to the ensemble, using a confirmatory factor analysis. Outputs from four NLDAS Phase 2 models currently running in operations at NOAA/NCEP and four new/ upgraded models that are under consideration for the next phase of NLDAS are employed in this study. The results show that the runoff estimates from the LSMs were most dissimilar whereas the models showed greater similarity for root zone soil moisture, snow water equivalent, and terrestrial water storage. Generally, the NLDAS operational models showed weaker association with the common factor of the ensemble and the newer versions of the LSMs showed stronger association with the common factor, with the model similarity increasing at longer time scales. Trade-offs between the similarity metrics and accuracy measures indicated that the NLDAS operational models demonstrate a larger span in the similarity-accuracy space compared to the new LSMs. The results of the article indicate that simultaneous consideration of model similarity and accuracy at the relevant time scales is necessary in the development of multimodel ensemble.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN56532 , Water Resources Research (ISSN 0043-1397) (e-ISSN 1944-7973); 53; 11; 8941-8965
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  • 60
    Publikationsdatum: 2019-07-13
    Beschreibung: We develop a viscous model of plate bending suitable for studying ice-sheet flexure due to subglacial lake filling and draining, and apply this model to determine the area of ice-sheet uplift surrounding a subglacial lake. The choice of a viscous model reflects our interest in Antarctic subglacial lakes, which can fill and drain on time scales of months to decades. Experiments with idealized lake shapes show that the size of the uplift area relative to lake area depends on subglacial water pressure and ice-sheet thickness, with the viscous material parameters scaling the magnitude of uplift rate within this area. The water pressure therefore has a strong control on the evolution of the lake shape and related subglacial hydrological development, but is not yet well constrained by observations. Due to the likelihood that ice flexure will affect subglacial lake filling and draining, we suggest that the insights of this study should be applied to development of a realistic ice sheet-hydrological coupled model.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN52820 , Frontiers in Earth Science (e-ISSN 2296-6463); 5; 103
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  • 61
    Publikationsdatum: 2019-07-13
    Beschreibung: Understanding the impacts of urbanization requires accurate and updatable urban extent maps. Here we present an algorithm for mapping urban extent at global scale using Landsat data. An innovative hierarchical object-based texture (HOTex) classification approach was designed to overcome spectral confusion between urban and nonurban land cover types. VIIRS nightlights data and MODIS vegetation index datasets are integrated as high-level features under an object-based framework. We applied the HOTex method to the GLS-2010 Landsat images to produce a global map of human built-up and settlement extent. As shown by visual assessments, our method could effectively map urban extent and generate consistent results using images with inconsistent acquisition time and vegetation phenology. Using scene-level cross validation for results in Europe, we assessed the performance of HOTex and achieved a kappa coefficient of 0.91, compared to 0.74 from a baseline method using per-pixel classification using spectral information.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN52365 , IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2017); Jul 23, 2017 - Jul 28, 2017; Fort Worth, TX; United States
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  • 62
    Publikationsdatum: 2019-07-13
    Beschreibung: A new version of the modeling and analysis system used to produce sub-seasonal to seasonal forecasts has just been released by the NASA Goddard Global Modeling and Assimilation Office. The new version runs at higher atmospheric resolution (approximately 12 degree globally), contains a substantially improved model description of the cryosphere, and includes additional interactive earth system model components (aerosol model). In addition, the Ocean data assimilation system has been replaced with a Local Ensemble Transform Kalman Filter. Here will describe the new system, along with the plans for the future (GEOS S2S-3_0) which will include a higher resolution ocean model and more interactive earth system model components (interactive vegetation, biomass burning from fires). We will also present results from a free-running coupled simulation with the new system and results from a series of retrospective seasonal forecasts. Results from retrospective forecasts show significant improvements in surface temperatures over much of the northern hemisphere and a much improved prediction of sea ice extent in both hemispheres. The precipitation forecast skill is comparable to previous S2S systems, and the only trade off is an increased double ITCZ, which is expected as we go to higher atmospheric resolution.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN50557 , American Geophysical Union 2017 Fall Meeting; Dec 11, 2017 - Dec 15, 2017; New Orleans, LA; United States
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  • 63
    Publikationsdatum: 2019-07-13
    Beschreibung: The El Nino Southern Oscillation (ENSO) is the most important mode of tropical climate variability on interannual to decadal time scales. Correlations between atmospheric CO2 growth rate and ENSO activity are relatively well known but the magnitude of this correlation, the contribution from tropical marine vs. terrestrial flux components, and the causal mechanisms, are poorly constrained in space and time. The launch of NASA's Orbiting Carbon Observatory-2 (OCO-2) mission in July 2014 was rather timely given the development of strong ENSO conditions over the tropical Pacific Ocean in 2015-2016. In this presentation, we will discuss how the high-density observations from OCO-2 provided us with a novel dataset to resolve the linkages between El Nino and atmospheric CO2. Along with information from in situ observations of pCO2 from NOAA's Tropical Atmosphere Ocean (TAO) project and atmospheric CO2 from the Scripps CO2 Program, and other remote-sensing missions, we are able to piece together the time dependent response of atmospheric CO2 concentrations over the Tropics. Our findings confirm the hypothesis from studies following the 1997-1998 El Nino event that an early reduction in CO2 outgassing from the tropical Pacific Ocean is later reversed by enhanced net CO2 emissions from the terrestrial biosphere. This implies that a component of the interannual variability (IAV) in the growth rate of atmospheric CO2, which has typically been used to constrain the climate sensitivity of tropical land carbon fluxes, is strongly influenced and modified by ocean fluxes during the early phase of the ENSO event. Our analyses shed further light on the understanding of the marine vs. terrestrial partitioning of tropical carbon fluxes during El Nino events, their relative contributions to the global atmospheric CO2 growth rate, and provide clues about the sensitivity of the carbon cycle to climate forcing on interannual time scales.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN50624 , American Geophysical Union(AGU) 2017 Fall Meeting; Dec 11, 2017 - Dec 15, 2017; New Orleans, LA; United States
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  • 64
    Publikationsdatum: 2019-07-13
    Beschreibung: Stratospheric intrusions "the introduction of ozone-rich stratospheric air into the troposphere" have been linked with surface ozone air quality exceedances, especially at the high elevations in the western USA in springtime. However, the impact of stratospheric intrusions in the remaining seasons and over the rest of the USA is less clear. A new approach to the study of stratospheric intrusions uses NASA's Goddard Earth Observing System Model (GEOS) model and assimilation products with an objective feature tracking algorithm to investigate the atmospheric dynamics that generate stratospheric intrusions and the different mechanisms through which stratospheric intrusions may influence tropospheric chemistry and surface air quality seasonally over both the western and the eastern USA. A catalog of stratospheric intrusions identified in the MERRA-2 reanalysis was produced for the period 2004-2015 and validated against surface ozone observations (focusing on those which exceed the national air quality standard) and a recent data set of stratospheric intrusion-influenced air quality exceedance flags from the US Environmental Protection Agency (EPA). Considering not all ozone exceedances have been flagged by the EPA, a collection of stratospheric intrusions can support air quality agencies for more rapid identification of the impact of stratospheric air on surface ozone and demonstrates that future operational analyses may aid in forecasting such events. An analysis of the spatiotemporal variability of stratospheric intrusions over the continental US was performed, and while the spring over the western USA does exhibit the largest number of stratospheric intrusions affecting the lower troposphere, the number of intrusions in the remaining seasons and over the eastern USA is sizable. By focusing on the major modes of variability that influence weather in the USA, such as the Pacific North American (PNA) teleconnection index, predicative meteorological patterns associated with stratospheric intrusions and their regional effects on tropospheric ozone were identified. Improved understanding of the connections between large-scale climate variability and local-scale dynamically-driven air quality events may support improved seasonal prediction of such events.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN50633 , American Geophysical Union (AGU) 2017 Fall Meeting; Dec 11, 2017 - Dec 15, 2017; New Orleans, LA; United States
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  • 65
    Publikationsdatum: 2019-07-13
    Beschreibung: We provide an introduction to a new high-resolution (0.25 degree) global composition forecast produced by NASA's Global Modeling and Assimilation office. The NASA Goddard Earth Observing System version 5 (GEOS-5) model has been expanded to provide global near-real-time forecasts of atmospheric composition at a horizontal resolution of 0.25 degrees (approximately 25 km). Previously, this combination of detailed chemistry and resolution was only provided by regional models. This system combines the operational GEOS-5 weather forecasting model with the state-of-the-science GEOS-Chem chemistry module (version 11) to provide detailed chemical analysis of a wide range of air pollutants such as ozone, carbon monoxide, nitrogen oxides, and fine particulate matter (PM2.5). The resolution of the forecasts is the highest resolution compared to current, publically-available global composition forecasts. Evaluation and validation of modeled trace gases and aerosols compared to surface and satellite observations will be presented for constituents relative to health air quality standards. Comparisons of modeled trace gases and aerosols against satellite observations show that the model produces realistic concentrations of atmospheric constituents in the free troposphere. Model comparisons against surface observations highlight the model's capability to capture the diurnal variability of air pollutants under a variety of meteorological conditions. The GEOS-5 composition forecasting system offers a new tool for scientists and the public health community, and is being developed jointly with several government and non-profit partners. Potential applications include air quality warnings, flight campaign planning and exposure studies using the archived analysis fields.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN50629 , AGU Fall Meeting 2017; Dec 11, 2017 - Dec 15, 2017; New Orleans, LA; United States
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  • 66
    facet.materialart.
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    In:  CASI
    Publikationsdatum: 2019-07-13
    Beschreibung: Immersion freezing is likely involved in the initiation of precipitation and determines to large extent the phase partitioning in convective clouds. Theoretical models commonly used to describe immersion freezing in atmospheric models are based on the classical nucleation theory which however neglects important interactions near the immersed particle that may affect nucleation rates. This work introduces a new theory of immersion freezing based on two premises. First, immersion ice nucleation is mediated by the modification of the properties of water near the particle-liquid interface, rather than by the geometry of the ice germ. Second, the same mechanism that leads to the decrease in the work of germ formation also decreases the mobility of water molecules near the immersed particle. These two premises allow establishing general thermodynamic constraints to the ice nucleation rate. Analysis of the new theory shows that active sites likely trigger ice nucleation, but they do not control the overall nucleation rate nor the probability of freezing. It also suggests that materials with different ice nucleation efficiency may exhibit similar freezing temperatures under similar conditions but differ in their sensitivity to particle surface area and cooling rate. Predicted nucleation rates show good agreement with observations for a diverse set of materials including dust, black carbon and bacterial ice nucleating particles. The application of the new theory within the NASA Global Earth System Model (GEOS-5) is also discussed.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN50620 , American Geophysical Union (AGU) 2017 Fall Meeting; Dec 11, 2017 - Dec 15, 2017; New Orleans, LA; United States
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  • 67
    Publikationsdatum: 2019-07-13
    Beschreibung: Satellite aerosol optical depth (AOD) has been used to assess population exposure to fine particulate matter (PM (sub 2.5)). The emerging high-resolution satellite aerosol product, Multi-Angle Implementation of Atmospheric Correction(MAIAC), provides a valuable opportunity to characterize local-scale PM(sub 2.5) at 1-km resolution. However, non-random missing AOD due to cloud snow cover or high surface reflectance makes this task challenging. Previous studies filled the data gap by spatially interpolating neighboring PM(sub 2.5) measurements or predictions. This strategy ignored the effect of cloud cover on aerosol loadings and has been shown to exhibit poor performance when monitoring stations are sparse or when there is seasonal large-scale missngness. Using the Yangtze River Delta of China as an example, we present a Multiple Imputation (MI) method that combines the MAIAC high-resolution satellite retrievals with chemical transport model (CTM) simulations to fill missing AOD. A two-stage statistical model driven by gap-filled AOD, meteorology and land use information was then fitted to estimate daily ground PM(sub 2.5) concentrations in 2013 and 2014 at 1 km resolution with complete coverage in space and time. The daily MI models have an average R(exp 2) of 0.77, with an inter-quartile range of 0.71 to 0.82 across days. The overall Ml model 10-fold cross-validation R(exp 2) (root mean square error) were 0.81 (25 gm(exp 3)) and 0.73 (18 gm(exp 3)) for year 2013 and 2014, respectively. Predictions with only observational AOD or only imputed AOD showed similar accuracy.Comparing with previous gap-filling methods, our MI method presented in this study performed bette rwith higher coverage, higher accuracy, and the ability to fill missing PM(sub 2.5) predictions without ground PM(sub 2.5) measurements. This method can provide reliable PM(sub 2.5)predictions with complete coverage that can reduce biasin exposure assessment in air pollution and health studies.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN45199 , Remote Sensing of Environment (ISSN 0034-4257); 199; 437-446
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  • 68
    Publikationsdatum: 2019-07-13
    Beschreibung: Two long records of melt onset (MO) on Arctic sea ice from passive microwave brightness temperatures (Tbs) obtained by a series of satellite-borne instruments are compared. The Passive Microwave (PMW) method and Advanced Horizontal Range Algorithm (AHRA) detect the increase in emissivity that occurs when liquid water develops around snow grains at the onset of early melting on sea ice. The timing of MO on Arctic sea ice influences the amount of solar radiation absorbed by the ice-ocean system throughout the melt season by reducing surface albedos in the early spring. This work presents a thorough comparison of these two methods for the time series of MO dates from 1979through 2012. The methods are first compared using the published data as a baseline comparison of the publically available data products. A second comparison is performed on adjusted MO dates we produced to remove known differences in inter-sensor calibration of Tbs and masking techniques used to develop the original MO date products. These adjustments result in a more consistent set of input Tbs for the algorithms. Tests of significance indicate that the trends in the time series of annual mean MO dates for the PMW and AHRA are statistically different for the majority of the Arctic Ocean including the Laptev, E. Siberian, Chukchi, Beaufort, and central Arctic regions with mean differences as large as 38.3 days in the Barents Sea. Trend agreement improves for our more consistent MO dates for nearly all regions. Mean differences remain large, primarily due to differing sensitivity of in-algorithm thresholds and larger uncertainties in thin-ice regions.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN45590 , Remote Sensing (e-ISSN 2072-4292); 9; 3; 199
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  • 69
    Publikationsdatum: 2019-07-13
    Beschreibung: We used light detection and ranging (LiDAR) data to calculate roughness patterns (homogeneity, mean-roughness, and entropy) for five lava types at two different resolutions (1.5 and 0.1 m/pixel). We found that end-member types (a a and pahoehoe) are separable (with 95% confidence) at both scales, indicating that roughness patterns are well suited for analyzing types of lava. Intermediate lavas were also explored, and we found that slabby-pahoehoe is separable from the other end-members using 1.5 m/pixel data, but not in the 0.1 m/pixel analysis. This suggests that the conversion from pahoehoe to slabby-pahoehoe is a meter-scale process, and the finer roughness characteristics of pahoehoe, such as ropes and toes, are not significantly affected. Furthermore, we introduce the ratio ENT/HOM (derived from lava roughness) as a proxy for assessing local lava flow rate from topographic data. High entropy and low homogeneity regions correlate with high flow rate while low entropy and high homogeneity regions correlate with low flow rate.We suggest that this relationship is not directional, rather it is apparent through roughness differences of the associated lava type emplaced at the high and low rates, respectively.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN51129 , Bulletin of Volcanology (ISSN 0258-8900) (e-ISSN 1432-0819); 79; 75
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  • 70
    Publikationsdatum: 2019-08-13
    Beschreibung: Reanalyses have become an integral tool for evaluating regional and global climate variations, and an important component of this is modifications to the energy budget. Reductions in Arctic Sea ice extent has induced an albedo feedback, causing the Arctic to warm more rapidly than anywhere else in the world, referred to as "Arctic Amplification." This has been demonstrated by observations and numerous reanalyses, including the Modern Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2). However, the Arctic Amplification signal is non-existent in a ten member ensemble of the MERRA-2 Atmospheric Model Intercomparison Project (M2AMIP) simulations, using the same prescribed climate forcing, including Sea Surface Temperature (SST) and ice. An evaluation of the temperature tendency within the lower troposphere due to radiation, moisture, and dynamics as well as the surface energy budget in MERRA-2 and M2AMIP will demonstrate that despite identical prescribed SSTs and sea ice in both versions, enhanced warming in the Arctic in MERRA-2 is in response to the analysis increment tendency due to temperature observations. Furthermore, the role of boundary conditions, model biases and changes in observing systems on the Arctic Amplification signal will be assessed. Literature on the topic of Arctic Amplification demonstrates that the enhanced warming begins in the mid-1990s. Anomalously warm Arctic SST in the early time period of MERRA-2 can mute the trend in Arctic lower troposphere temperature without the constraint of observations in M2AMIP. Additionally, MERRA-2 uses three distinct datasets of SST and sea ice concentration, which also plays a role.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN49318 , International Conference on Reanalysis; Nov 13, 2017 - Nov 17, 2017; Rome; Italy
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  • 71
    Publikationsdatum: 2019-08-13
    Beschreibung: Invest this decade in in situ instruments(including sample selection and handling can we choose using VR?) to TRL 6; put them on flight missions in the 2020s and 2030s to relevant destinations where in situ precision can provide meaningful constraints on geologic history.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN39736 , Planetary Science Vision (PSV) 2050 Workshop; Feb 27, 2017 - Mar 01, 2017; Washington, DC; United States
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  • 72
    Publikationsdatum: 2019-07-13
    Beschreibung: SMAP (Soil Moisture Active and Passive) radiometer observations at 40 km resolution are routinely assimilated into the NASA Catchment Land Surface Model to generate the 9-km SMAP Level-4 Soil Moisture product. This study demonstrates that adding high-resolution radar observations from Sentinel-1 to the SMAP assimilation can increase the spatio-temporal accuracy of soil moisture estimates. Radar observations were assimilated either separately from or simultaneously with radiometer observations. Assimilation impact was assessed by comparing 3-hourly, 9-km surface and root-zone soil moisture simulations with in situ measurements from 9-km SMAP core validation sites and sparse networks, from May 2015 to December 2016. The Sentinel-1 assimilation consistently improved surface soil moisture, whereas root-zone impacts were mostly neutral. Relatively larger improvements were obtained from SMAP assimilation. The joint assimilation of SMAP and Sentinel-1 observations performed best, demonstrating the complementary value of radar and radiometer observations.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN43420 , Geophysical Research Letters (ISSN 0094-8276) (e-ISSN 1944-8007); 44; 12; 6145–6153
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  • 73
    Publikationsdatum: 2019-07-13
    Beschreibung: This paper presents two research applications exploiting unused metadata resources in novel ways to aid data discovery and exploration capabilities. The results based on the experiments are encouraging and each application has the potential to serve as a useful standalone component or service in a data system. There were also some interesting lessons learned while designing the two applications and these are presented next.
    Schlagwort(e): Geosciences (General)
    Materialart: MSFC-E-DAA-TN44073 , IEEE Geoscience and Remote Sensing Symposium; Jul 23, 2017 - Jul 28, 2017; Fort Worth, TX; United States
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  • 74
    Publikationsdatum: 2019-07-13
    Beschreibung: We present a new global electrical conductivity model of Earths mantle. The model was derived by using a novel methodology, which is based on inverting satellite magnetic field measurements from different sources simultaneously. Specifically, we estimated responses of magnetospheric origin and ocean tidal magnetic signals from the most recent Swarm and CHAMP data. The challenging task of properly accounting for the ocean effect in the data was addressed through full three-dimensional solution of Maxwell's equations. We show that simultaneous inversion of magnetospheric and tidal magnetic signals results in a model with much improved resolution. Comparison with laboratory-based conductivity profiles shows that obtained models are compatible with a pyrolytic composition and a water content of 0.01 wt and 0.1 wt in the upper mantle and transition zone, respectively.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN43630 , Geophysical Research Letters (ISSN 0094-8276) (e-ISSN 1944-8007); 44; 12; 6074-6081
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  • 75
    Publikationsdatum: 2019-07-13
    Beschreibung: Potential climate drivers of Arctic tundra vegetation productivity are investigated to understand recent greening and browning trends documented by maximum normalized difference vegetation index (NDVI) (MaxNDVI) and time-integrated NDVI (TI-NDVI) for 19822015. Over this period, summer sea ice has continued to decline while oceanic heat content has increased. The increases in summer warmth index (SWI) and NDVI have not been uniform over the satellite record. SWI increased from 1982 to the mid-1990s and remained relatively flat from 1998 onwards until a recent upturn. While MaxNDVI displays positive trends from 19822015, TI-NDVI increased from 1982 until 2001 and has declined since. The data for the first and second halves of the record were analyzed and compared spatially for changing trends with a focus on the growing season. Negative trends for MaxNDVI and TI-NDVI were more common during 19992015 compared to 19821998.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN43560 , Environmental Research Letters (e-ISSN 1748-9326); 12; 5; 055003
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  • 76
    Publikationsdatum: 2019-07-13
    Beschreibung: Applications of OSSEs:1. Estimate effects of proposed instruments (and their competing designs)on analysis skill by exploiting simulated environment, and 2. Evaluate present and proposed techniques for data assimilation by exploiting known truth.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN42718 , Joint Center for Satellite Data Assimilation (JCSDA) Scientific and Technical Workshop; May 17, 2017 - May 19, 2017; College Park, MD; United States
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  • 77
    Publikationsdatum: 2019-07-13
    Beschreibung: The Ice, Cloud, and land Elevation Satellite (ICESat) mission used laser altimetry measurements to determine changes in elevations of glaciers and ice sheets, as well as sea ice thickness distribution. These measurements have provided important information on the response of the cryosphere (Earths frozen surfaces) to changes in atmosphere and ocean condition. ICESat operated from 2003-2009 and provided repeat altimetry measurements not only to the cryosphere scientific community but also to the ocean, terrestrial and atmospheric scientific communities. The conclusive assessment of significant ongoing rapid changes in the Earths ice cover, in part supported by ICESat observations, has strengthened the need for sustained, high accuracy, repeat observations similar to what was provided by the ICESat mission. Following recommendations from the National Research Council for an ICESat follow-on mission, the ICESat-2 mission is now under development for planned launch in 2018. The primary scientific aims of the ICESat-2 mission are to continue measurements of sea ice freeboard and ice sheet elevation to determine their changes at scales from outlet glaciers to the entire ice sheet, and from 10s of meters to the entire polar oceans for sea ice freeboard. ICESat carried a single beam profiling laser altimeter that produced approximately 70 m diameter footprints on the surface of the Earth at approximately 150 m along-track intervals. In contrast, ICESat-2 will operate with three pairs of beams, each pair separated by about 3 km across-track with a pair spacing of 90 m. Each of the beams will have a nominal 17 m diameter footprint with an along-track sampling interval of 0.7 m. The differences in the ICESat-2 measurement concept are a result of overcoming some limitations associated with the approach used in the ICESat mission. The beam pair configuration of ICESat-2 allows for the determination of local cross-track slope, a significant factor in measuring elevation change for the outlet glaciers surrounding the Greenland and Antarctica coasts. The multiple beam pairs also provide improved spatial coverage. The dense spatial sampling eliminates along-track measurement gaps, and the small footprint diameter is especially useful for sea surface height measurements in the often narrow leads needed for sea ice freeboard and ice thickness retrievals. The ICESat-2 instrumentation concept uses a low energy 532 nm (green) laser in conjunction with single-photon sensitive detectors to measure range. Combining ICESat-2 data with altimetry data collected since the start of the ICESat mission in 2003, such as Operation IceBridge and ESAs CryoSat-2, will yield a 15+ year record of changes in ice sheet elevation and sea ice thickness. ICESat-2 will also provide information of mountain glacier and ice cap elevations changes, land and vegetation heights, inland water elevations, sea surface heights, and cloud layering and optical thickness.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN40706 , Remote Sensing of Environment (ISSN 0034-4257); 190; 260-273
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  • 78
    Publikationsdatum: 2019-07-13
    Beschreibung: While the importance of the seasonal migration of the zonally averaged Hadley circulation on interhemispheric transport of trace gases has been recognized, few studies have examined the role of the zonally asymmetric monsoonal circulation. This study investigates the role of monsoon-like zonally asymmetric heating on interhemispheric transport using a dry atmospheric model that is forced by idealized Newtonian relaxation to a prescribed radiative equilibrium temperature. When only the seasonal cycle of zonally symmetric heating is considered, the mean age of air in the Southern Hemisphere since last contact with the Northern Hemisphere midlatitude boundary layer, is much larger than the observations. The introduction of monsoon-like zonally asymmetric heating not only reduces the mean age of tropospheric air to more realistic values, but also produces an upper-tropospheric cross-equatorial transport pathway in boreal summer that resembles the transport pathway simulated in the NASA Global Modeling Initiative (GMI) Chemistry Transport Model driven with MERRA meteorological fields. These results highlight the monsoon-induced eddy circulation plays an important role in the interhemispheric transport of long-lived chemical constituents.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN41725 , Journal of Geophysical Research: Atmospheres (ISSN 2169-897X) (e-ISSN 2169-8996); 122; 6; 3282–3298
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  • 79
    Publikationsdatum: 2019-07-13
    Beschreibung: We present an assimilation system for atmospheric carbon dioxide (CO2) using a Global Eulerian-Lagrangian Coupled Atmospheric model (GELCA), and demonstrate its capability to capture the observed atmospheric CO2 mixing ratios and to estimate CO2 fluxes. With the efficient data handling scheme in GELCA, our system assimilates non-smoothed CO2 data from observational data products such as the Observation Package (ObsPack) data products as constraints on surface fluxes. We conducted sensitivity tests to examine the impact of the site selections and the prior uncertainty settings of observation on the inversion results. For these sensitivity tests, we made five different sitedata selections from the ObsPack product. In all cases, the time series of the global net CO2 flux to the atmosphere stayed close to values calculated from the growth rate of the observed global mean atmospheric CO2 mixing ratio. At regional scales, estimated seasonal CO2 fluxes were altered, depending on the CO2 data selected for assimilation. Uncertainty reductions (URs) were determined at the regional scale and compared among cases. As measures of the model-data mismatch, we used the model-data bias, root-mean-square error, and the linear correlation. For most observation sites, the model-data mismatch was reasonably small. Regarding regional flux estimates, tropical Asia was one of the regions that showed a significant impact from the observation network settings. We found that the surface fluxes in tropical Asia were the most sensitive to the use of aircraft measurements over the Pacific, and the seasonal cycle agreed better with the results of bottom-up studies when the aircraft measurements were assimilated. These results confirm the importance of these aircraft observations, especially for constraining surface fluxes in the tropics.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN41777 , Tellus B (ISSN 0280-6509) (e-ISSN 1600-0889); 69; 1; 1291158
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  • 80
    facet.materialart.
    Unbekannt
    In:  CASI
    Publikationsdatum: 2019-07-13
    Beschreibung: This presentation presents an overview of the aerosol data assimilation work performed at GMAO. The GMAO Forward Processing system and the biomass burning emissions from QFED are first presented. Then, the current assimilation of Aerosol Optical Depth (AOD), performed by means of the analysis splitting method is briefly described, followed by some results on the quality control of observations using a Neural Network trained using AERONET AOD. Some applications are shown such as the Mount Pinatubo eruption in 1991 using the MERRA-2 aerosol dataset. Finally preliminary results on the EnKF implementation for aerosol assimilation are presented.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN42844 , Joint Center for Satellite Data Assimilation (JCSDA) Technical Review Meeting & Science Workshop on Satellite Data Assimilation; May 17, 2017 - May 19, 2017; College Park, MD; United States
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  • 81
    Publikationsdatum: 2019-07-13
    Beschreibung: The terrestrial biosphere and atmosphere interact through a series of feedback loops. Variability in terrestrial vegetation growth and phenology can modulate fluxes of water and energy to the atmosphere, and thus affect the climatic conditions that in turn regulate vegetation dynamics. Here we analyze satellite observations of solar-induced fluorescence, precipitation, and radiation using a multivariate statistical technique. We find that biosphere-atmosphere feedbacks are globally widespread and regionally strong: they explain up to 30 of precipitation and surface radiation variance. Substantial biosphere-precipitation feedbacks are often found in regions that are transitional between energy and water limitation, such as semi-arid or monsoonal regions. Substantial biosphere-radiation feedbacks are often present in several moderately wet regions and in the Mediterranean, where precipitation and radiation increase vegetation growth. Enhancement of latent and sensible heat transfer from vegetation accompanies this growth, which increases boundary layer height and convection, affecting cloudiness, and consequently incident surface radiation. Enhanced evapotranspiration can increase moist convection, leading to increased precipitation. Earth system models underestimate these precipitation and radiation feedbacks mainly because they underestimate the biosphere response to radiation and water availability. We conclude that biosphere-atmosphere feedbacks cluster in specific climatic regions that help determine the net CO2 balance of the biosphere.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN43141 , Nature Geoscience (ISSN 1752-0894) (e-ISSN 1752-0908); 10; 6; 410-414
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  • 82
    Publikationsdatum: 2019-07-13
    Beschreibung: This study investigates some of the benefits and drawbacks of assimilating Terrestrial Water Storage (TWS) observations from the Gravity Recovery and Climate Experiment (GRACE) into a land surface model over India. GRACE observes TWS depletion associated with anthropogenic groundwater extraction in northwest India. The model, however, does not represent anthropogenic groundwater withdrawals and is not skillful in reproducing the interannual variability of groundwater. Assimilation of GRACE TWS introduces long-term trends and improves the interannual variability in groundwater. But the assimilation also introduces a negative trend in simulated evapotranspiration whereas in reality evapotranspiration is likely enhanced by irrigation, which is also unmodeled. Moreover, in situ measurements of shallow groundwater show no trend, suggesting that the trends are erroneously introduced by the assimilation into the modeled shallow groundwater, when in reality the groundwater is depleted in deeper aquifers. The results emphasize the importance of representing anthropogenic processes in land surface modeling and data assimilation systems.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN42024 , Geophysical Research Letters (ISSN 0094-8276) (e-ISSN 1944-8007); 44; 9; 4107-4115
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  • 83
    facet.materialart.
    Unbekannt
    In:  CASI
    Publikationsdatum: 2019-07-13
    Beschreibung: Over the last 10-15 years, significant advances have been made in information management, there are an increasing number of individuals entering the field of information management as it applies to Geoscience and Remote Sensing data, and the field of informatics has come to its own. Informatics is the science and technology of applying computers and computational methods to the systematic analysis, management, interchange, and representation of science data, information, and knowledge. Informatics also includes the use of computers and computational methods to support decision making and applications. Earth Science Informatics (ESI, a.k.a. geoinformatics) is the application of informatics in the Earth science domain. ESI is a rapidly developing discipline integrating computer science, information science, and Earth science. Major national and international research and infrastructure projects in ESI have been carried out or are on-going. Notable among these are: the Global Earth Observation System of Systems (GEOSS), the European Commissions INSPIRE, the U.S. NSDI and Geospatial One-Stop, the NASA EOSDIS, and the NSF DataONE, EarthCube and Cyberinfrastructure for Geoinformatics. More than 18 departments and agencies in the U.S. federal government have been active in Earth science informatics. All major space agencies in the world, have been involved in ESI research and application activities. In the United States, the Federation of Earth Science Information Partners (ESIP), whose membership includes over 180 organizations (government, academic and commercial) dedicated to managing, delivering and applying Earth science data, has been working on many ESI topics since 1998. The Committee on Earth Observation Satellites (CEOS)s Working Group on Information Systems and Services (WGISS) has been actively coordinating the ESI activities among the space agencies.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN40034 , IEEE Geoscience and Remote Sensing Distinguished Lecturer Program; May 20, 2017; Beijing; China
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  • 84
    Publikationsdatum: 2019-07-13
    Beschreibung: Ozone (O3) soundings have been performed on Easter Island or Rapa Nui (27 8S, 109 8W, 51 m a.s.l.) since 1994 as part of the Global Atmospheric Watch Programme of the World Meteorological Organization. In this work, we analyze 260 soundings compiled over the period 19942014, and make the data available for the international community. We characterize O3 profiles over this remote area of the Pacific by means of statistical analyses that consider, on the one hand, a traditional climatology that describes the data in terms of seasonal cycles based on monthly averages and, on the other hand, a process-oriented analysis based on self-organizing maps. Our analyses show the influence of both tropical and subtropical/mid-latitude air masses at Rapa Nui. The former occurs in summer and fall when convective conditions prevail, and the latter in late winter and spring when subsiding conditions are recurrent. The occurrence of stratospheric intrusions in late winter and spring in connection with deep troughs and the presence of the subtropical jet stream is also apparent in the data set. The tropospheric ozone column is in good agreement with the corresponding data derived from satellites but with a systematic overestimate of summer and fall values. There is evidence of an upward trend in ozone near the surface, which suggests the impact of local pollution. We look forward to an enhancement of the Rapa Nui observing site, given its location that offers a privileged position to observe climate change over the sparsely sampled and vast South Pacific Ocean.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN39588 , Tellus B Chemical and Physical Meteorology (e-ISSN 1600-0889); 68; 1; 29484
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  • 85
    Publikationsdatum: 2019-08-14
    Beschreibung: NASAs Earth Science Data System (ESDS) Program serves as a central cog in order to facilitate the implementation of NASA's Earth Science strategic plan. Since 1994, the ESDS Program has committed to the full and open sharing of Earth science data obtained from NASA instruments to all users. One of the key responsibilities of the ESDS Program is to continuously evolve the entire data and information system to maximize returns on the collected NASA data. An independent review was conducted in 2015 to holistically review the EOSDIS in order to identify gaps. The review recommendations were to investigate two areas: one, whether commercial cloud providers offer potential for storage, processing, and operational efficiencies, and two, the potential development of new data access and analysis paradigms. In response, ESDS has initiated several prototypes investigating the advantages and risks of leveraging cloud computing. This paper describes one such prototyping activity named Cumulus. Cumulus is being designed and developed as a "native" cloud-based data ingest, archive and management system that can be used for all future NASA Earth science data streams. Cumulus will foster design of new analysisvisualization tools that can leverage collocated data from all of the distributed DAACs as well as elastic cloud computing resources.
    Schlagwort(e): Geosciences (General)
    Materialart: MSFC-E-DAA-TN38523 , International Geoscience and Remote Sensing Symposium (IGRSS 2017); Jul 23, 2017 - Jul 28, 2017; Fort Worth, TX; United States
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  • 86
    Publikationsdatum: 2019-07-12
    Beschreibung: In March and April 2012, NASA conducted an airborne lidar campaign based out of Keflavik, Iceland, in support of Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) algorithm development. The survey targeted the Greenland Ice Sheet, Iceland ice caps, and sea ice in the Arctic Ocean during the winter season. Ultimately, the mission, MABEL Iceland 2012, including checkout and transit flights, conducted 14 science flights, for a total of over 80 flight hours over glaciers, icefields, and sea ice.
    Schlagwort(e): Geosciences (General)
    Materialart: NASA/TM-2017-219023 , GSFC-E-DAA-TN43569
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  • 87
    Publikationsdatum: 2019-07-12
    Beschreibung: The GMAO seasonal forecast is produced from coupled model integrations that are initialized every five days, with seven additional ensemble members generated by coupled model breeding and initialized on the date closest to the beginning of the month. The main components of the AOGCM are the GEOS-5 atmospheric model, the MOM4 ocean model, and CICE sea ice model. Forecast fields were re-gridded to the passive microwave grid for averaging.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN43665
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  • 88
    Publikationsdatum: 2019-07-13
    Beschreibung: We examine the spatial and temporal trends of absorbing aerosol optical depth (AAOD) in the last decade over the United States (U.S.) observed by the Ozone Monitoring Instrument (OMI). Monthly average OMI AAOD has increased over broad areas of the central U.S. from 2005 to 2015, by up to a factor of 4 in some grid cells (~60 km resolution). The AAOD increases in all seasons, although the percentage increases are larger in summer (June-July-August) than in winter (December-January-February) by a factor of 3. Despite enhancements in AAOD, OMI AOD exhibits insignificant trend over most of the U.S. except parts of the central and western U.S., the latter which may partly be due to decreases in precipitation. Trends in AAOD contrast with declining trends in surface concentrations of black carbon (BC) aerosol. Interannual variability of local biomass burning emissions of BC may contribute to the positive trend in AAOD over the western U.S. Changes in both dust aerosol measured at the surface (in terms of concentration and size) and dust AAOD indicate distinct enhancements, especially over the central U.S. by 50-100%, which appears to be one of the major factors that impacts positive trends in AAOD.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN40384 , Journal of Geophysical Research Atmospheres (ISSN 2159-897X); 122; 3 Witer; 1797-1810
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  • 89
    Publikationsdatum: 2019-07-13
    Beschreibung: No abstract available
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN40355 , Lunar Planetary Science Conference; Mar 20, 2017 - Mar 24, 2017; The Woodlands, TX; United States
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  • 90
    Publikationsdatum: 2019-07-13
    Beschreibung: Earth-based radar observations revealed highly reflective deposits at the poles of Mercury [e.g., 1], which collocate with permanently shadowed regions (PSRs) detected from both imagery and altimetry by the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft [e.g., 2]. MESSENGER also measured higher hydrogen concentrations at the north polar region, consistent with models for these deposits to be composed primarily of water ice [3]. Enigmatic to the characterization of ice deposits on Mercury is the thickness of these radar-bright features. A current minimum bound of several meters exists from the radar measurements, which show no drop in the radar cross section between 13- and 70-cm wavelength observations [4, 5]. A maximum thickness of 300 m is based on the lack of any statistically significant difference between the height of craters that host radar-bright deposits and those that do not [6]. More recently, this upper limit on the depth of a typical ice deposit has been lowered to approximately 150 m, in a study that found a mean excess thickness of 50 +/- 35 m of radar-bright deposits for 6 craters [7]. Refining such a constraint permits the derivation of a volumetric estimate of the total polar ice on Mercury, thus providing insight into possible sources of water ice on the planet. Here, we take a different approach to constrain the thickness of water-ice deposits. Permanently shadowed surfaces have been resolved in images acquired with the broadband filter on MESSENGER's wide-angle camera (WAC) using low levels of light scattered by crater walls and other topography [8]. These surfaces are not featureless and often host small craters (less than a few km in diameter). Here we utilize the presence of these small simple craters to constrain the thickness of the radar-bright ice deposits on Mercury. Specifically, we compare estimated depths made from depth-to-diameter ratios and depths from individual Mercury Laser Altimeter (MLA) tracks to constrain the fill of material of small craters that lie within the permanently shadowed, radar bright deposits of 7 north polar craters.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN39689 , Lunar Planetary Science Conference; Mar 20, 2017 - Mar 24, 2017; The Woodlands, TX; United States
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  • 91
    Publikationsdatum: 2019-07-13
    Beschreibung: The small obliquity of Mercury causes topographic depressions located near its poles to cast persistent shadows. Many [1, 9, 15] have shown these permanently shadowed regions (PSRs) may trap water ice for geologic time periods inside cold-traps. More recently, direct evidence for the presence of water ice deposits inside craters was remotely sensed in RADAR [5] and visible imagery [3]. Albedo measurements (reflectence at 1064 nm) obtained by the MErcury Space ENviroment GEochemistry and Ranging Laser Altimeter (MLA) found unusually bright and dark areas next to Mercury's north pole [7]. Using a thermal illumination model, Paige et al. [8] found the bright deposits are correlated with surface cold-traps, and the dark deposits are correlated with subsurface cold-traps. They suggested these anomalous deposits were brought to the surface by comets and were processed by the magnetospheric radiation flux, removing hydrogen and mixing C-N-O-S atoms to form a variety of molecules which will darken with time. Here we use a thermal illumination model to find the link between the cold-trap area fraction of a rough surface and its albedo. Using this link and the measurements obtained by MESSENGER we derive a surface and a subsurface ice distribution map on Mercury's north pole below the MESSENGER spatial resolution, approximately 500 m. We find a large fraction of the polar ice on Mercury resides inside micro cold-traps (of scales 10 - 100 m) distributed along the inter-crater terrain.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN38769 , Lunar and Planetary Science Conference; Mar 20, 2017 - Mar 24, 2017; The Woodlands, TX; United States
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  • 92
    Publikationsdatum: 2019-07-13
    Beschreibung: Aerosol indirect effects have potentially large impacts on the Arctic Ocean surface energy budget, but model estimates of regional-scale aerosol indirect effects are highly uncertain and poorly validated by observations. Here we demonstrate a new way to quantitatively estimate aerosol indirect effects on a regional scale from remote sensing observations. In this study, we focus on nighttime, optically thin, predominantly liquid clouds. The method is based on differences in cloud physical and microphysical characteristics in carefully selected clean, average, and aerosol-impacted conditions. The cloud subset of focus covers just approximately 5 % of cloudy Arctic Ocean regions, warming the Arctic Ocean surface by approximately 1-1.4 W m(exp -2) regionally during polar night. However, within this cloud subset, aerosol and cloud conditions can be determined with high confidence using CALIPSO and CloudSat data and model output. This cloud subset is generally susceptible to aerosols, with a polar nighttime estimated maximum regionally integrated indirect cooling effect of approximately 0.11 W m(exp 2) at the Arctic sea ice surface (approximately 8 % of the clean background cloud effect), excluding cloud fraction changes. Aerosol presence is related to reduced precipitation, cloud thickness, and radar reflectivity, and in some cases, an increased likelihood of cloud presence in the liquid phase. These observations are inconsistent with a glaciation indirect effect and are consistent with either a deactivation effect or less-efficient secondary ice formation related to smaller liquid cloud droplets. However, this cloud subset shows large differences in surface and meteorological forcing in shallow and higher-altitude clouds and between sea ice and open-ocean regions. For example, optically thin, predominantly liquid clouds are much more likely to overlay another cloud over the open ocean, which may reduce aerosol indirect effects on the surface. Also, shallow clouds over open ocean do not appear to respond to aerosols as strongly as clouds over stratified sea ice environments, indicating a larger influence of meteorological forcing over aerosol microphysics in these types of clouds over the rapidly changing Arctic Ocean.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN44853 , Atmospheric Chemistry and Physics (ISSN 1680-7316) (e-ISSN 1680-7324); 17; 12; 7311-7332
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  • 93
    Publikationsdatum: 2019-07-13
    Beschreibung: The Convective Transport of Active Species in the Tropics (CONTRAST) experiment was conducted from Guam (13.5degN, 144.8degE) during January-February 2014. Using the NSF/NCAR Gulfstream V research aircraft, the experiment investigated the photochemical environment over the tropical western Pacific (TWP) warm pool, a region of massive deep convection and the major pathway for air to enter the stratosphere during Northern Hemisphere (NH) winter. The new observations provide a wealth of information for quantifying the influence of convection on the vertical distributions of active species. The airborne in situ measurements up to 15-km altitude fill a significant gap by characterizing the abundance and altitude variation of a wide suite of trace gases. These measurements, together with observations of dynamical and microphysical parameters, provide significant new data for constraining and evaluating global chemistry climate models. Measurements include precursor and product gas species of reactive halogen compounds that impact ozone in the upper troposphere/lower stratosphere. High-accuracy, in situ measurements of ozone obtained during CONTRAST quantify ozone concentration profiles in the upper troposphere, where previous observations from balloon-borne ozonesondes were often near or below the limit of detection. CONTRAST was one of the three coordinated experiments to observe the TWP during January-February 2014. Together, CONTRAST, Airborne Tropical Tropopause Experiment (ATTREX), and Coordinated Airborne Studies in the Tropics (CAST), using complementary capabilities of the three aircraft platforms as well as ground-based instrumentation, provide a comprehensive quantification of the regional distribution and vertical structure of natural and pollutant trace gases in the TWP during NH winter, from the oceanic boundary to the lower stratosphere.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN43658 , Bulletin of the American Meteorological Society (ISSN 0003-0007) (e-ISSN 1520-0477); 98; 1; 106-128
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  • 94
    Publikationsdatum: 2019-07-13
    Beschreibung: We construct long-term time series of Greenland and Antarctic ice sheet mass change from satellite gravity measurements. A statistical reconstruction approach is developed based on a principal component analysis (PCA) to combine high-resolution spatial modes from the Gravity Recovery and Climate Experiment (GRACE) mission with the gravity information from conventional satellite tracking data. Uncertainties of this reconstruction are rigorously assessed; they include temporal limitations for short GRACE measurements, spatial limitations for the low-resolution conventional tracking data measurements, and limitations of the estimated statistical relationships between low- and high-degree potential coefficients reflected in the PCA modes. Trends of mass variations in Greenland and Antarctica are assessed against a number of previous studies. The resulting time series for Greenland show a higher rate of mass loss than other methods before 2000, while the Antarctic ice sheet appears heavily influenced by interannual variations.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN42579 , Journal of Geodesy (ISSN 0949-7714) (e-ISSN 1432-1394); 91; 1-16
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  • 95
    Publikationsdatum: 2019-07-13
    Beschreibung: No abstract available
    Schlagwort(e): Geosciences (General)
    Materialart: MSFC-E-DAA-TN42336 , 2017 Space Weather Workshop; May 01, 2017 - May 05, 2017; Broomfield, CO; United States
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  • 96
    Publikationsdatum: 2019-07-13
    Beschreibung: Hydrometeorological hazards are caused by extreme meteorological and climate events, such as floods, droughts, hurricanes,tornadoes, or landslides. They account for a dominant fraction of natural hazards and occur in all regions of the world, although the frequency and intensity of certain hazards and societies vulnerability to them differ between regions. Severe storms, strong winds, floods, and droughts develop at different spatial and temporal scales, but all can become disasters that cause significant infrastructure damage and claim hundreds of thousands of lives annually worldwide. Oftentimes, multiple hazards can occur simultaneously or trigger cascading impacts from one extreme weather event. For example, in addition to causing injuries, deaths, and material damage, a tropical storm can also result in flooding and mudslides, which can disrupt water purification and sewage disposal systems, cause overflow of toxic wastes, andincrease propagation of mosquito-borne diseases.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN41150 , Advances in Meteorology (ISSN 1687-9309) (e-ISSN 1687-9317); 2016; 1-3
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  • 97
    Publikationsdatum: 2019-07-13
    Beschreibung: Large earthquakes cause billions of dollars in damage and extensive loss of life and property. Geodetic and topographic imaging provide measurements of transient and long-term crustal deformation needed to monitor fault zones and understand earthquakes. Earthquake-induced strain and rupture characteristics are expressed in topographic features imprinted on the landscapes of fault zones. Small UAVs provide an efficient and flexible means to collect multi-angle imagery to reconstruct fine scale fault zone topography and provide surrogate data to determine requirements for and to simulate future platforms for air- and space-based multi-angle imaging.
    Schlagwort(e): Geosciences (General)
    Materialart: JPL-CL-17-0294 , IEEE Aerospace Conference; Mar 04, 2017 - Mar 11, 2017; Big Sky, MT; United States
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  • 98
    Publikationsdatum: 2019-07-13
    Beschreibung: We describe the new version 3.0 NASA Ozone Monitoring Instrument (OMI) standard nitrogen dioxide (NO2) products (SPv3). The products and documentation are publicly available from the NASA Goddard Earth Sciences Data and Information Services Center (https://disc.gsfc.nasa.gov/datasets/OMNO2_V003/summary/). The major improvements include (1) a new spectral fitting algorithm for NO2 slant column density (SCD) retrieval and (2) higher-resolution (1 latitude and 1.25 longitude) a priori NO2 and temperature profiles from the Global Modeling Initiative (GMI) chemistrytransport model with yearly varying emissions to calculate air mass factors (AMFs) required to convert SCDs into vertical column densities (VCDs). The new SCDs are systematically lower (by 10-40%) than previous, version 2, estimates. Most of this reduction in SCDs is propagated into stratospheric VCDs. Tropospheric NO2 VCDs are also reduced over polluted areas, especially over western Europe, the eastern US, and eastern China. Initial evaluation over unpolluted areas shows that the new SPv3 products agree better with independent satellite- and ground-based Fourier transform infrared (FTIR) measurements. However, further evaluation of tropospheric VCDs is needed over polluted areas, where the increased spatial resolution and more refined AMF estimates may lead to better characterization of pollution hot spots.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN48305 , Atmospheric Measurement Techniques (ISSN 1867-1381) (e-ISSN 1867-8548); 10; 9; 3133-3149
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  • 99
    Publikationsdatum: 2019-07-13
    Beschreibung: Radiative transfer (RT) models play a very critical role in assimilating satellite radiances into NWP models. The RT models are used as forward operator to simulate satellite radiances from atmopspheric control variables such as pressure, temperature, water vapor, and ozone. However because line-by-line RT models are computationally very expensive, fast RT models have been developed and advanced especially in past two decades to overcome these limitations. Community Radiative Transfer Model (CRTM) developed by Joint Center for Satellite Data Assimilation is widely used in the U.S. as the forward operator for the assimilation of microwave and infrared satellite radiances. This abstract summarizes the GMAO activities in the support of CRTM including generating training coefficients for new instruments as well as developments for assimilating satellite radiances from shortwave infrared channels.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN57319 , JCSDA Technical Review Meeting & Science Workshop on Satellite Data Assimilation; May 30, 2018 - Jun 01, 2018; Boulder, CO; United States
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  • 100
    Publikationsdatum: 2019-07-13
    Beschreibung: Sun-induced chlorophyll fluorescence (SIF) has been regarded as a promising proxy for gross primary productivity (GPP) over land. Considerable uncertainties in GPP estimation using remotely sensed SIF exist due to variations in the Sun-satellite view observation geometry that could induce unwanted variations in SIF observation. In this study, we normalize the far-red Global Ozone Monitoring Experiment-2 SIF observations on sunny days to hot spot direction (SIF(h)) to represent sunlit leaves and compute a weighted sum of SIF (SIF(t)) from sunlit and shaded leaves to represent the canopy. We found that SIF(h) is better correlated with sunlit GPP simulated by a process-based ecosystem model and SIF(t) is better correlated with the simulated total GPP than the original SIF observations. The coefficient of determination (R(exp 2)) are increased by 0.04 +/- 0.03, and 0.07 +/- 0.04 on a global average using SIF(h) and SIF(t), respectively. The most significant increases of the R(exp 2) (0.09 +/- 0.04 for SIF(t) and 0.05 +/- 0.03 for SIF(h)) appear in deciduous broadleaf forests.
    Schlagwort(e): Geosciences (General)
    Materialart: GSFC-E-DAA-TN51469 , Geophysical Research Letters (ISSN 0094-8276) (e-ISSN 1944-8007); 44; 11; 5691-5699
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