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  • Springer  (5)
  • AGU (American Geophysical Union)  (3)
  • Kiel : Inst. für Meereskunde, Abt. Meeresphysik  (3)
  • 1995-1999  (11)
  • 1
    Keywords: Forschungsbericht ; Hochschulschrift
    Description / Table of Contents: Das deutsche Forschungsschiff SONNE war während der Fahrt Nr 113 (TROPAC) vom 10 Oktober - 19 November 1996 im westlichen tropischen Pazifik im Einsatz. Das Untersuchungsgebiet lag im Östlichen Marianenbecken und im Östlichen Karolinenbecken. Das physikalisch/chemische Programm hatte zwei Schwerpunkte a) Untersuchungen zur Zirkulation von Antarktischem Zwischenwasser in der Bismarck- See und längs des Äquators zwischen 143° und 150°E und b) zur Struktur und zum Transport von unterem zirkumpolaren Tiefenwasser im Marianenbecken. (MOD)
    Type of Medium: Book
    Pages: 129 S , graph. Darst., Kt
    Series Statement: Berichte aus dem Institut für Meereskunde an der Christian-Albrechts-Universität Kiel 288
    Language: German
    Note: Förderkennzeichen BMBF 03G0113A
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  • 2
    Book
    Book
    Kiel : Inst. für Meereskunde, Abt. Meeresphysik
    Keywords: Meereskunde ; SI-Einheiten
    Description / Table of Contents: Die Zusammenstellung zu den SI-Einheiten soll eine praktische Arbeitsgrundlage für die Verwendung dieser Einheiten in der Ozeanographie bereitstellen. Sie paßt die grundlegenden Vorschriften des SI-Systems (Système International d'Unités) und die vom UNESCO/ICES/SCOR/IAPSO-Ausschuß "Ozeanographische Tabelle und Standards" (JPOTS) erarbeiteten Regeln für die Anwendung in der Ozeanographie zusammen. Grundlagen sind der SUN Report (IAPSO, 1979), die IAPSO-Publication Scientifique No. 32, veröffentlicht bei der UNESCO (1985) und die Empfehlungen der genannten internationalen Meeresforschungsorganisationen zum "Praktischen Salzgehalt" und zur neuen Zustandsgleichung des Meerwassers (UNESCO, 1981, 1983). Außerdem werden Angaben zur neuen internationalen Temperaturskala gegeben (SAUNDERS, 1990). Der Bericht enthält ferner eine Zusammenfassung von Größen und Einheiten zur Strahlungsenergieübertragung im Meer. Die 3. Auflage wurde gegenüber der 2. Auflage vor allem durch Erläuterungen zu oft gebrauchten Bezeichnungen ergänzt. Bei den Strahlungsgrößen wurden einige Bezeichnungen entsprechend dem überwiegend üblichen Gebrauch verändert bzw. hinzugefügt, und einige Fehler wurden korrigiert.
    Type of Medium: Book
    Pages: 18 S , graph. Darst.
    Edition: 3. überarb. Aufl
    Series Statement: Berichte aus dem Institut für Meereskunde an der Christian-Albrechts-Universität Kiel 101
    Language: German , English
    Note: Text in dt. u. engl. Sprache
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  • 3
    Book
    Book
    Kiel : Inst. für Meereskunde, Abt. Meeresphysik
    Keywords: Report ; Dissertation ; Forschungsbericht ; Hochschulschrift
    Type of Medium: Book
    Pages: IV, 142 S. , Ill., graph. Darst., Kt.
    Series Statement: Berichte aus dem Institut für Meereskunde an der Christian-Albrechts-Universität Kiel 281
    Language: German
    Note: Literaturverz. S. 128 - 135 , Zugl.: Kiel, Univ., Diss., 1995
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  • 4
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    AGU (American Geophysical Union)
    In:  Journal of Geophysical Research: Oceans, 103 (C10). 21,469-21,479.
    Publication Date: 2018-04-30
    Description: Mechanical energy terms are calculated from moored current meter data in the Cape Verde Frontal Zone (about 20°N, 25°W) and compared with those derived from a mesoscale model of this frontal region. The model is of the Bleck and Boudra [1981] type with isopycnal coordinates. An initially zonal jet, representing the Canary Current, is allowed to develop under the influence of baroclinic and barotropic instability processes. We find reasonable agreement in magnitudes, somewhat smaller in the model, and similar distributions in the vertical. This leads to the conclusion that the energy transfer terms from the model can be expected to be sufficiently close to reality. Determination of the transfer terms confirms that the energy transfer in the zone is dominated by baroclinic instability processes while barotropic instability is of minor importance. Average baroclinic instability energy transfer terms reach values of 2–3 μW m−3 in the pycnocline. Peak layer mean values are of the order 10 μW m−3. It is shown that the spatial distribution of active transfer regions is closely related to the structure of the transient eddy field in the frontal zone and that strong instability processes are restricted to the pycnocline.
    Type: Article , PeerReviewed
    Format: text
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  • 5
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    Springer
    In:  In: The South Atlantic: Present and Past Circulation. , ed. by Wefer, G., Berger, W. H., Siedler, G. and Webb, D. J. Springer, Berlin, Germany, pp. 83-104. ISBN 3-540-62079-6
    Publication Date: 2019-09-03
    Description: The data from six zonal sections in the World Ocean Circulation Experiment (WOCE) in the tropical and southem Atlantic are used to describe the distribution of water masses. Due to the high spatial resolution, the structure oftemperature, salinity, oxygen, silicate and nitrate displays details related to transport and mixing in this region. Temperature-salinity diagrams are also presented which indicate the effects ofbranching and recirculation loops in the water mass flow.
    Type: Book chapter , PeerReviewed
    Format: text
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  • 6
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    Springer
    In:  In: The South Atlantic: Present and Past Circulation. , ed. by Wefer, G., Berger, W. H., Siedler, G. and Webb, D. J. Springer, Berlin, Germany, pp. 355-361.
    Publication Date: 2013-01-15
    Type: Book chapter , NonPeerReviewed
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  • 7
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    AGU (American Geophysical Union)
    In:  Journal of Geophysical Research: Oceans, 103 (C3). pp. 5419-5428.
    Publication Date: 2018-04-30
    Description: Recent hydrographic sections and high-quality historical data sets are used to determine geostrophic currents at subtropical latitudes in the western basin of the South Atlantic. Levels of no motion are determined from water mass information and a mass balance constraint to obtain the transport field of North Atlantic Deep Water (NADW) in this region. The incoming NADW transport of about 20 Sv from the north at 19 degrees S appears to be balanced by only one third of this transport leaving in the south and two thirds leaving to the east or northeast at the Mid-Atlantic Ridge. A simple model is proposed to determine the cause of the NADW branching. It is shown that potential vorticity preservation in the presence of topographic changes leads to a similar flow pattern as observed, with branching near the Vitoria-Trindade-Ridge and also an eastward turning of the southward western boundary current at about 28 degrees S, the latitude where a balance of planetary vorticity change and stretching can be expected.
    Type: Article , PeerReviewed
    Format: text
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  • 8
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    Springer
    In:  In: The South Atlantic: Present and Past Circulation. , ed. by Wefer, G., Berger, W. H., Siedler, G. and Webb, D. J. Springer, Berlin, Heidelberg, pp. 105-120. ISBN 3-540-62079-6
    Publication Date: 2020-04-03
    Description: Hydrographic data along 11°S occupied in 1983 by the R.V. OCEANUS are used together with various wind climatologies to estimate the annual average transport of heat at this latitude. Some motivation for expecting fairly well-defined estimates at this latitude compared to others comes from the absence of a strong western boundary current. Results include flow in four layers representing the thermocline, Antarctic Intermediate Water, North Atlantic Deep Water, and Antarctic Bottom Water, using zero velocity reference level choices based on property distributions. The annual average heat transport is estimated to be 0.6 ± 0.17 x 1015 W. Previous estimates of the transport at 8–16°S range from 0.2 PW to greater than 1 PW. Interannual variability from the wind field alone leads to interannual heat transport variability of about 0.05 PW. Comparisons with other recent studies at 45–30°S and 11°N are made.
    Type: Book chapter , NonPeerReviewed
    Format: text
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  • 9
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    Springer
    In:  In: The South Atlantic: Present and Past Circulation. , ed. by Wefer, G., Berger, W. H., Siedler, G. and Webb, D. J. Springer, Berlin, Germany, pp. 249-260.
    Publication Date: 2019-09-12
    Description: The Deep Basin Experiment (DBE), a part of the World Ocean Circulation Experiment (WOCE), is presently underway in the Brazil Basin of the South Atlantic. The program objectives and design philosophy are reviewed and early results are presented. Observations from a moored array along the southern boundary and neutrally buoyant float trajectories in the North Atlantic Deep Water and Antarctic Bottom Water are described with emphasis on their relationship to the recent flow schemes offered by Reid (1989). Also discussed are the process of cross isotherm mixing within the intense flow regime of the Verna Channel and observations of long period warming of the bottom water.
    Type: Book chapter , NonPeerReviewed
    Format: text
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  • 10
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    Springer
    In:  Springer, Berlin, Germany, 644 pp. ISBN 3-540-62079-6
    Publication Date: 2020-03-25
    Type: Book , PeerReviewed
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