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  • 2005-2009  (583)
  • 1950-1954  (38)
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  • 1
    Monographie ausleihbar
    Monographie ausleihbar
    Geomorphometry : concepts, software, applications (2009)
    Amsterdam [u.a.] : Elsevier
    Dazugehörige Bände
    Details Verfügbarkeit
    Signatur: M 09.0160
    In: Developments in soil science
    Beschreibung / Inhaltsverzeichnis: A guide to preparing Digital Elevation Models (DEM) for analysis and extracting land-surface parameters and objects from DEMs through a variety of software. It offers instructions on applying parameters and objects in soil, agricultural, environmental and earth sciences.Geomorphometry is the science of quantitative land-surface analysis. It draws upon mathematical, statistical, and image-processing techniques to quantify the shape of earth's topography at various spatial scales. The focus of geomorphometry is the calculation of surface-form measures (land-surface parameters) and features (objects), which may be used to improve the mapping and modelling of landforms to assist in the evaluation of soils, vegetation, land use, natural hazards, and other information. This book provides a practical guide to preparing Digital Elevation Models (DEM) for analysis and extracting land-surface parameters and objects from DEMs through a variety of software.It further offers detailed instructions on applying parameters and objects in soil, agricultural, environmental and earth sciences. This is a manual of state-of-the-art methods to serve the various researchers who use geomorphometry. Soil scientists will use this book to further learn the methods for classifying and measuring the chemical, biological, and fertility properties of soils and gain a further understaing of the role of soil as a natural resource.Geologists will find value in the instruction this book provides for measuring the physical features of the soil such as elevation, porosity, and structure which geologists use to predict natural disasters such as earthquakes, volcanoes, and flooding.Technical details on a variety of software packages allow researchers to solve real-life mapping issues. This book provides soil and agronomy researchers best practice techniques for soil data analysis to assist in enhanced land-use and planning. It offers geologists essential tactics for better environmental management by providing a comprehensive analysis of the physical features of soil. The companion website includes access to the latest technological advancements previously unpublished in any other comprehensive source: geomorphometry software, DEM data sources, and applications.
    Materialart: Monographie ausleihbar
    Seiten: xxix, 765 S.
    ISBN: 0123743451 , 978-0-12-374345-9
    Serie: Developments in soil science 33
    Klassifikation:
    Geographie und Geomorphologie
    Standort: Kompaktmagazin oben
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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    BUCH
    Link zum Bibliothekskatalog
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  • 2
    facet.materialart.
    Unbekannt
    Geochemical analysis of surface water samples of a tidal basin of the German Wadden Sea (2007)
    PANGAEA
    In:  Institute for Chemistry and Biology of the Marine Environment, Carl-von-Ossietzky University of Oldenburg, Germany
    Details
    Publikationsdatum: 2023-10-28
    Schlagwort(e): Alkalinity, total; Aluminium oxide; Antimony; Barium; Biogeochemistry of Tidal Flats; Bismuth; BrumsackHJ_SENK_020213_TP3; Cadmium; Calcium oxide; Carbon, inorganic, total; Carbon, organic, dissolved; Carbon, organic, particulate; Carbon, total; Chromium; Cobalt; Copper; DATE/TIME; DEPTH, water; ICP-MS, see further details; ICP-OES, see further details; Iron oxide, Fe2O3; LATITUDE; Lead; LONGITUDE; Magnesium oxide; Manganese; Molybdenum; Nickel; Otzumer Balje Tidal Inlet, Spiekeroog Backbarrier Tidal Flat, German Bight; Phosphorus pentoxide; Potassium oxide; Rubidium; see further details; SPM_GF, see further details; SPM_PC, see further details; Strontium; Suspended matter, particulate/solids; Thallium; Titanium dioxide; Uranium; Vanadium; Water sample; WATT; WS; Yttrium; Zinc
    Materialart: Dataset
    Format: text/tab-separated-values, 856 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 3
    facet.materialart.
    Unbekannt
    Geochemical analysis of surface water samples of a tidal basin of the German Wadden Sea at site SENK (2007)
    PANGAEA
    In:  Institute for Chemistry and Biology of the Marine Environment, Carl-von-Ossietzky University of Oldenburg, Germany
    Details
    Publikationsdatum: 2023-10-28
    Schlagwort(e): Alkalinity, total; Aluminium oxide; Antimony; Barium; Biogeochemistry of Tidal Flats; Bismuth; BrumsackHJ_SENK_020213_TP3; BrumsackHJ_SENK_020527_TP3; BrumsackHJ_SENK_020820_TP3; BrumsackHJ_SENK_021118_TP3; BrumsackHJ_SENK_030210_TP3; BrumsackHJ_SENK_030211_TP3; BrumsackHJ_SENK_030422_TP3; BrumsackHJ_SENK_030424_TP3; BrumsackHJ_SENK_030722_TP3; BrumsackHJ_SENK_030811_TP3; BrumsackHJ_SENK_030812_TP3; BrumsackHJ_SENK_031110_TP3; BrumsackHJ_SENK_031112_TP3; Cadmium; Calcium oxide; Carbon, inorganic, total; Carbon, organic, dissolved; Carbon, organic, particulate; Carbon, total; Central Backbarrier Area, Spiekeroog Backbarrier Tidal Flat, German Bight; Cerium; Chromium; Cobalt; Copper; DATE/TIME; DEPTH, water; Event label; Iron oxide, Fe2O3; Lanthanum; LATITUDE; Lead; LONGITUDE; Magnesium oxide; Manganese; Molybdenum; Nickel; Otzmer Balje Tidal Inlet, Spiekeroog Backbarrier Tidal Flat, German Bight; Otzumer Balje Tidal Inlet, Spiekeroog Backbarrier Tidal Flat, German Bight; Phosphorus pentoxide; Potassium oxide; Rubidium; see further details; Strontium; Suspended matter, particulate/solids; Thallium; Titanium dioxide; Uranium; Vanadium; Water sample; WATT; WS; Yttrium; Zinc; Zirconium
    Materialart: Dataset
    Format: text/tab-separated-values, 13814 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 4
    facet.materialart.
    Unbekannt
    (Table 3) Interannual variability of total mass flux at the deep sediment trap site CBmeso between 1988 and 2006 (2009)
    PANGAEA
    In:  Supplement to: Fischer, Gerhard; Reuter, Christian; Karakas, Gökay; Nowald, Nicolas; Wefer, Gerold (2009): Offshore advection of particles within the Cape Blanc filament, Mauritania: Results from observational and modelling studies. In: Freon, P; Barange, M; Aristegui, J (eds.) Eastern Boundary Upwelling systems: Integrative and Comparative Approaches. Special Edition, Progress in Oceanography, 83(1-4), 322-330, https://doi.org/10.1016/j.pocean.2009.07.023
    Details
    Publikationsdatum: 2024-02-02
    Beschreibung: This article will review major features of the 'giant' Cape Blanc filament off Mauritania with regard to the transport of chlorophyll and organic carbon from the shelf to the open ocean. Within the filament, chlorophyll is transported about 400 km offshore. Modelled particle distributions along a zonal transect at 21°N showed that particles with a sinking velocity of 5 m d**-1 are advected offshore by up to 600 km in subsurface particle clouds generally located between 400 m and 800 m water depth, forming an Intermediate Nepheloid Layer (INL). It corresponds to the depth of the oxygen minimum zone. Heavier particles with a sinking velocity of 30 m d**-1 are transported from the shelf within the Bottom Layer (BL) of more than 1000 m thickness, largely following the topography of the bottom slope. The particles advected within the BL contribute to the enhanced winter-spring mass fluxes collected at the open-ocean mesotrophic sediment trap site CB-13 (200 nm offshore), due to a long distance advection in deeper waters. The lateral contribution to the deep sediment trap in winter-spring is estimated to be 63% and 72% for organic carbon and total mass, respectively, whereas the lateral input for both components on an annual basis is estimated to be in the order of 15%. Biogenic opal increases almost fivefold from the upper to the lower mesotrophic CB-13 trap, also pointing to an additional source for biogenic silica from eutrophic coastal waters. Blooms obviously sink in smaller, probably mesoscale-sized patches with variable settling rates, depending on the type of aggregated particles and their ballast content. Generally, particle sinking rates are exceptionally high off NW Africa. Very high chlorophyll values and a large size of the Cape Blanc filament in 1998-1999 are also documented in enhanced total mass and organic carbon fluxes. An increasing trend in satellite chlorophyll concentrations and the size of the Cape Blanc filament between 1997 and 2008 as observed for other coastal upwelling areas is not documented.
    Schlagwort(e): Cape Blanc; CB1_trap; CB10; CB10_trap; CB12; CB12_trap; CB15; CB16; CB2_trap; CB3_trap; CB9_trap; Center for Marine Environmental Sciences; Comment; DATE/TIME; Date/time end; DEPTH, water; Depth water equivalent; Duration, number of days; Elevation 2; Elevation of event; Event label; Latitude 2; Latitude of event; Longitude 2; Longitude of event; M12/1; M6/6; M65/2; M9/4; MARUM; Meteor (1986); MOOR; Mooring; Reference/source; Sample code/label; see reference(s); Total mass, flux; Trap; TRAP
    Materialart: Dataset
    Format: text/tab-separated-values, 97 data points
    Standort Signatur Erwartet Verfügbarkeit
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    DATEN PANGAEA
  • 5
    Digitale Medien
    Digitale Medien
    Can Supply Restrictions Lower Price? Violence, Drug Dealing and Positional Advantage (2006)
    Berkeley, Calif. : Berkeley Electronic Press (now: De Gruyter)
    Contributions to economic analysis & policy 5.2006, 1, art3 
    Details
    ISSN: 1538-0645
    Quelle: Berkeley Electronic Press Academic Journals
    Thema: Wirtschaftswissenschaften
    Notizen: The standard model of markets for illicit drugs predicts that tougher enforcement against sellers will raise prices; yet cocaine and heroin prices have fallen substantially during a period of massive increases in enforcement. We present a model in which the basic mechanisms at work in the textbook model may be substantially altered by an important feature of illegal markets--violence that creates inheritable heterogeneity along a dimension that both determines relevant production cost and imposes externalities on other suppliers. Dealers frequently make use of violence and threat of violence in the normal course of trade. A seller who is particularly effective in the use of violence may face lower enforcement costs than other dealers and generate an external cost borne by those sellers. Together these features generate a number of counter-intuitive policy implications. For example the arrest of a particularly violent dealer reduces external costs borne by other dealers. The net effect is a possible reduction in costs for the marginal dealer and hence a reduction in price.
    Materialart: Digitale Medien
    URL: http://www.bepress.com/bejeap/contributions/vol5/iss1/art3
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    The Reaction of Ethyl Trichloroacetate with Aromatic Grignard Compounds (1953)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 75 (1953), S. 5126-5127 
    Details
    ISSN: 1520-5126
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ja01116a513
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Haematology and leucocyte morphology of wild caught Thunnus maccoyii (2005)
    Oxford, UK; Malden, USA : Blackwell Science Ltd
    Journal of fish biology 66 (2005), S. 0 
    Details
    ISSN: 1095-8649
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: The haematology of wild southern bluefin tuna Thunnus maccoyii was described using blood samples collected from fish immediately after they were caught. Cytology and cytochemistry revealed that the blood in peripheral circulation is comprised of erythrocytes, reticulocytes, ghost cells, lymphocytes, thrombocytes, eosinophilic granulocytes, neutrophilic granulocytes and monocytes. Reference ranges established were 41·09–55·50% for haematocrit, 0·62–3·00% for leucocrit, 13·25–17·92 g dl−1 for haemoglobin and 2·1–2·9 million erythrocytes μl−1 for erythrocyte count. Differential cell counts showed 94·58 ± 2·15% erythrocytes, 3·99 ± 1·44% leucocytes and 1·43 ± 1·03% thrombocytes (mean ± s.d.). Normal ranges for differential leucocyte counts were 0·00–5·45% for neutrophils, 0·69–12·06% for eosinophils, 0·00–5·03% for monocytes, 46·97–74·32% for lymphocytes and 14·47–43·92% for thrombocytes. Erythrocyte indices, leucocyte types and cytochemistry were comparable to other species of scombrids. Packed cell volume was sensitive to the physiological state of the fish and to sample handling technique.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.0022-1112.2005.00710.x
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
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    Unbekannt
    Bullard: Britain and the Middle East (Book Review) (1951)
    Washington : Periodicals Archive Online (PAO)
    Middle East Journal. 5 (1951) 379 
    Details
    ISSN: 0026-3141
    Thema: Ethnologie , Geschichte , Politikwissenschaft , Sociologie , Wirtschaftswissenschaften
    Notizen: Book Reviews
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:1158-1951-000-00-000071
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Zur numerischen Methode der Vorhersage von Änderungen der 500 mb-Fläche nach Charney und Eliassen (1951)
    Springer
    Meteorology and atmospheric physics 4 (1951), S. 122-141 
    Details
    ISSN: 1436-5065
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geographie , Physik
    Beschreibung / Inhaltsverzeichnis: Summary A verification of the prognostic formula for predicting the height profile of the 500 mb pressure surface at a fixed latitude derived byCharney andEliassen shows that a practical application is limited at least for the period under consideration (January 1949). Only in case of relatively small perturbations and rather uniform current along the latitude circle the formula seems to be successful in day-to-day forecast procedures.
    Kurzfassung: Résumé Une vérification portant sur le mois de janvier 1949 de la formule pronostique établie parCharney etEliassen et applicable aux variations de la surface de 500 mb. le long d'un parallèle géographique déterminé montre que son emploi dans la pratique de la prévision du temps est encore douteux. Ce n'est que dans le cas d'une composante zonale du vent à peu près uniforme et lors de petites perturbations correspondantes qu'une prévision calculée de la tendance de pression de l'onde supérieure de pression en un lieu déterminé semble possible.
    Notizen: Zusammenfassung Eine Überprüfung der vonCharney undEliassen abgeleiteten Prognosenformel für Änderungen der 500 mb-Fläche entlang einer bestimmten geographischen Breite ergibt, daß in den untersuchten Fällen (Januar 1949) eine Verwendung im praktischen Wetterdienst noch fraglich ist. Nur bei verhältnismäßig einheitlicher zonaler Windkomponente und bei entsprechend kleinen Störungen scheint eine Vorausberechnung der Drucktendenz der „oberen” Druckwelle für einen bestimmten Ort mit Hilfe der Formel möglich zu sein.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02246798
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Über die Verlagerung einzelner abgeschlossener atmosphärischer Wirbel (Kaltlufttropfen) bei ruhender Umgebung (1950)
    Springer
    Meteorology and atmospheric physics 3 (1950), S. 156-162 
    Details
    ISSN: 1436-5065
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Geographie , Physik
    Beschreibung / Inhaltsverzeichnis: Summary RecentlyC. G. Rossby has published two papers on the displacement of a solitary atmospheric vortex. Because of the variation of the Coriolisparameter with the latitude a displacement of the vortex takes place even if we assume that the vortex is originally symmetrical and embedded in resting air.C. G. Rossby was able to show that with these simplifications a displacement in a strict north-south direction has to occur. In the following article moreover the role of frictional forces is dealt with. Assuming a variation of the winddirection with height according to the Ekman spiral a deviation of the track of the vortex from the north-south direction to the right up to an angle of 20 degrees can be shown.
    Kurzfassung: Résumé C. G. Rossby a publié récemment deux travaux sur le déplacement de cyclones isolés et occlus. Par suite de la variation du paramètre de Coriolis avec la latitude géographique, le cyclone se déplace même par symétrie complète et calme à l'extérieur.C. G. Rossby a pu, dans cette hypothèse, exprimer la grandeur de la force agissant sur le cyclone et a montré que le déplacement devait se faire dans une direction Nord-Sud. On a étudié dans le présent article le rôle des forces de frottement dans ce déplacement. En admettant une variation du vent avec l'altitude du type de la spirale d'Ekman, on trouve une déviation de la trajectoire vers la droite par rapport à la direction Nord-Sud, allant jusqu'à 20 degrés.
    Notizen: Zusammenfassung In letzter Zeit hatC. G. Rossby zwei Arbeiten über die Verlagerung einzelner abgeschlossener Wirbel veröffentlicht. Wegen der Veränderlichkeit des Coriolisparameters mit der geographischen Breite findet eine Verlagerung des Wirbels auch bei vollständiger Symmetrie und bei ruhender Umgebung statt.C. G. Rossby konnte unter diesen Vereinfachungen einen Ausdruck für die Größe der auf den Wirbel wirkenden Kraft ableiten und zeigten, daß die Verlagerung in einer Nordsüdrichtung erfolgen müßte. Im nachfolgenden Artikel wird die Rolle der Reibungskräfte bei der Verlagerung untersucht. Unter der Annahme einer Windänderung mit der Höhe im Sinne der Ekmanspirale ergibt sich eine Abweichung der Bahn des Wirbels von der Nordsüdrichtung nach rechts bis zu einem Winkel von 20°.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02247530
    Standort Signatur Erwartet Verfügbarkeit
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