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  • 11
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-239
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 126 S. : Ill., graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 239
    Language: German
    Location: AWI Reading room
    Branch Library: AWI Library
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  • 12
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-314
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 109 S. : Abb. ; 24 cm
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 314
    Language: German
    Location: AWI Reading room
    Branch Library: AWI Library
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  • 13
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-181
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 79 S. : graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 181
    Location: AWI Reading room
    Branch Library: AWI Library
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  • 14
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-46
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 115 S. : graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 46
    Language: English
    Location: AWI Reading room
    Branch Library: AWI Library
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  • 15
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Institut für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-326
    In: Berichte zur Polarforschung
    Description / Table of Contents: Der Fahrtabschnitt ARK XIVl2 führt in das Europäische Nordmeer. Die Forschungsarbeiten begannen zwischen Nordgrönland und Spitzbergen in der Framstraße und endeten zwischen Island und Grönland südlich der Dänemarkstraße. Damit erfolgte eine der umfassendsten Aufnahmen der hydrographischen Bedingungen dieses Seegebiets insbesondere, da dank der günstigen Eis- und Wetterbedingungen alle Meßkurse bis an die grönländische Küste reichten. Der Schwerpunkt der Arbeiten lag bei physikalischen und chemischen Untersuchungen, die im Rahmen der Klimaforschung erfolgen, um die Mechanismen des Wärmeaustauschs zwischenOzean und Atmosphäre sowie den Kreislauf organischer Substanzen im Ozean zu erforschen. Bei den biogeochemischen Untersuchungen stand die chemische Zusammensetzung, Konzentration und Verteilung von gelöstem organischem Material (DOM) im Vordergrund. Ferner wurde die Abgabe des Treibhausgases Methan aus dem Ozean in die Atmosphäre untersucht.
    Type of Medium: Series available for loan
    Pages: 114 S. : Ill. ; 24 cm
    Series Statement: Berichte zur Polarforschung 326
    Location: AWI Reading room
    Branch Library: AWI Library
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  • 16
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZS-090(533) ; ZSP-168-533
    In: Berichte zur Polar- und Meeresforschung
    Type of Medium: Series available for loan
    Pages: 246 S. , Ill., graph. Darst., Kt.
    ISSN: 1618-3193
    Series Statement: Berichte zur Polar- und Meeresforschung 533
    Classification:
    Oceanology
    Location: Lower compact magazine
    Location: Lower compact magazine
    Branch Library: GFZ Library
    Branch Library: GFZ Library
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  • 17
    Keywords: climate change ; Antarctic ; Southern Ocean ; greenhouse gas ; carbon uptake ; climate models
    Description / Table of Contents: This volume provides a comprehensive, up-to-date account of how the physical and biological environment of the Antarctic continent and Southern Ocean has changed from Deep Time until the present day. It also considers how the Antarctic environment may change over the next century in a world where greenhouse gas concentrations are much higher than occurred over the last few centuries. The Antarctic is a highly coupled system with non-linear interactions between the atmosphere, ocean, ice and biota, along with complex links to the rest of the Earth system. In preparing this volume our approach has been highly cross-disciplinary, with the goal of reflecting the importance of the continent in global issues, such as sea level rise, the separation of natural climate variability from anthropogenic influences, food stocks, biodiversity and carbon uptake by the ocean. One hundred experts in Antarctic science have contributed and drafts of the manuscript were reviewed by over 200 scientists. We hope that it will be of value to all scientists with an interest in the Antarctic continent and the Southern Ocean, policy makers and those concerned with the deployment of observing systems and the development of climate models.
    Pages: Online-Ressource (XXVIII, 526 Seiten)
    ISBN: 9780948277221
    Language: English
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  • 18
    ISSN: 1751-8369
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geography , Geosciences
    Notes: Heat and freshwater transports through Fram Strait are understood to have a significant influence on the hydrographic conditions in the Arctic Ocean and on water mass modifications in the Nordic seas. To determine these transports and their variability reliable estimates of the volume transport through the strait are required. Current meter moorings were deployed in Fram Strait from September 1997 to September 1999 in the framework of the EU MAST III Variability of Exchanges in the Northern Seas programme. The monthly mean velocity fields reveal marked velocity variations over seasonal and annual time scales, and the spatial structure of the northward flowing West Spitsbergen Current and the southward East Greenland Current with a maximum in spring and a minimum in summer. The volume transport obtained by averaging the monthly means over two years amounts to 9.5 ± 1.4 Sv to the north and 11.1 ± 1.7 Sv to the south (1 Sv = 106 m3s−1). The West Spitsbergen Current has a strong barotropic and a weaker baroclinic component; in the East Greenland Current barotropic and baroclinic components are of similar magnitude. The net transport through the strait is 4.2 ± 2.3 Sv to the south. The obtained northward and southward transports are significantly larger than earlier estimates in the literature; however, within its range of uncertainty the balance obtained from a two year average is consistent with earlier estimates.
    Type of Medium: Electronic Resource
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  • 19
    Electronic Resource
    Electronic Resource
    Springer
    Polar biology 23 (2000), S. 85-94 
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Using Weddell Sea data collected during a cruise with “FS Polarstern” in austral summer 1992/1993, depletions of nutrients and TCO2 in the summer surface layer were calculated. The analogous depletion-like properties for temperature (Heat Storage) and salinity were also computed. The latter properties are useful to describe the physical conditions over the time period pertinent to the depletions. For different areas a strong correlation exists of Heat Storage and nutrient/TCO2 depletions, which is caused by a common factor – the period of light availability. Offshore of the Larsen shelf, an area usually inaccessible due to perennial ice cover, high nutrients/TCO2 depletions are achieved over a short period of time, pointing to a rapidly producing biological system. Primary productivity, calculated from the TCO2 depletion, amounts to about 100 mg C m−2 day−1 for the central Weddell Sea, but 570–1140 mg C m−2 day−1 for the offshore Larsen region. These values agree fairly well with the open-ocean Antarctic and other coastal areas, respectively.
    Type of Medium: Electronic Resource
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  • 20
    Electronic Resource
    Electronic Resource
    Springer
    Ocean dynamics 40 (1987), S. 141-155 
    ISSN: 1616-7228
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Zusammenfassung Anhand einer Reihe von neun XBT-Schnitten wird die Beständigkeit der Hauptmerkmale des Nordatlantischen Stromes betrachtet. Ein großer Mäander zwischen dem Kontinentalabhang vor Neufundland und der westlichen Flanke des Mittelatlantischen Rückens ist in allen Schnitten zu finden, die dieses Gebiet kreuzen. An der westlichen Flanke des Rückens scheint der Strom der Bodentopographie nach Süden zu folgen, um an der östlichen Flanke nach Norden zurückzuschwenken. Mesoskalige Schwankungen sind dem großskaligen Strom überlagert. Ihre Wellenlänge von etwa 200 km ändert sich nicht signifikant in den verschiedenen Schnitten östlich des Rückens. Die durch Satellit verfolgten Kurse von vier Driftbojen, die über der östlichen Flanke des Rückens ausgelegt wurden, legen nahe, daß die mesoskaligen Fluktuationen, die in diesem Gebiet beobachtet werden, aus Mäandern bestehen, die sich abtrennen und geschlossene Ringe bilden können. Die Trajektorien der Bojen sind offenbar mit den Tiefenlinien korreliert. Obwohl sich die horizontalen Gradienten mit den Jahreszeiten und der hydrographischen Situation ändern, sind die großskaligen Temperaturmerkmale lokal beständig.
    Abstract: Résumé Une série de 9 coupes bathythermiques (XBT) est utilisée pour étudier la persistance dans le régime général du Courant Atlantique Nord. Un grand méandre situé entre le Talus Continental de Terre Neuve et le flanc Ouest de la Dorsale Médio Atlantique est observé sur toutes les coupes intéressant cette zone. Sur le flanc Ouest de la Dorsale, le courant semble au Sud suivre la Topographie et revient au Nord le long du flanc Est de la dorsale. Des fluctations à meso échelle se superposent au régime de courant à grande échelle. A l'Est de la Dorsale, l'échelle de longueur de 200 km ne varie pas significativement. Les traces de 4 bouées dérivantes poursuites par satellites mises à l'eau sur le flanc Est de la Dorsale suggèrent que les fluctuations à meso échelle observées dans cette zone sont constituées de méandres qui peuvent se séparer du flux général et former des anneaux fermés. Les trajectoires des bouées semblent indiquer une corrélation avec la forme des isobathes. Bien que les gradients horizontaux varient en fonction des saisons et de la bathymètrie, le régime des températures à grande échelle est localement persistant.
    Notes: Summary A series of nine XBT sections is used to study the persistence in the general pattern of the North Atlantic Current. A large meander between the Newfoudland Continental Slope and the western flank of the Mid-Atlantic-Ridge is found in all sections crossing this area. On the western flank of the ridge the current seems to follow the topography to the south and shifts back to the north on the eastern flank. Mesoscale fluctuations are superimposed to the large scale current. East of the ridge, their length scales of 200 km do not vary significantly in the different sections. Four satellite tracked drifting buoys, launched on the eastern flank of the ridge, suggest that the mesoscale fluctuations observed in that area consist of meanders which can separate and form closed rings. The trajectories of the buoys seem to correlate with the depth contours. Although the horizontal gradients vary due to different seasons and hydrographic situations, the large scale temperature pattern is locally persistent.
    Type of Medium: Electronic Resource
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