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  • PANGAEA  (16)
  • Springer  (16)
  • Pergamon Press  (5)
  • Kiel : Inst. für Meereskunde, Abt. Meeresphysik  (4)
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  • 11
    Publication Date: 2019-01-21
    Type: Article , PeerReviewed
    Format: text
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  • 12
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    Pergamon Press
    In:  Deep Sea Research Part A: Oceanographic Research Papers, 26 (Suppl. 1). pp. 161-189.
    Publication Date: 2020-08-04
    Description: Horizontal velocity and temperature measurements observed from a two-dimensional array of moored instruments, mooring Fl, are analysed to describe the near-surface internal wave field in the GATE (GARP Atlantic Tropical Experiment) C-scale area. Spectral properties indicate strong deviations from the Garrett and Munk (1972, 1975) deep ocean internal wave models. The frequency spectrum in the upper pycnocline is dominated by three energetic bands centered at 0.0127 (inertial frequency), 0.08 (M2-tidal frequency) and 3 cph. The latter frequency band does not correspond to the local Brunt Väisälä frequency (〈 10 cph) and contains about one half of the total internal wave energy of fluctuations with periods less than 10 hours. Cross-spectral analysis of the high frequency internal waves yields corresponding wavelengths of order 1 km consistent with westward propagating first mode wave groups, if the effect of Doppler shift due to a strong mean current is taken into account
    Type: Article , PeerReviewed
    Format: text
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  • 13
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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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  • 14
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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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  • 15
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    Springer
    In:  In: Landolt-Börnstein Zahlenwerte und Funktionen aus Naturwissenschaften und Technik: Neue Serie = Numerical data and functional relationships in science and technology: new series / Ed.-in-chief: O. Madelung Gruppe 5, Geophysik und Weltraumforschung = Geophysics and space research Bd. 3, Ozeanographie = Oceanography, Teilband a. Springer, Berlin, Germany, pp. 233-264. ISBN 3-540-15092-7
    Publication Date: 2020-03-05
    Type: Book chapter , NonPeerReviewed
    Format: text
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  • 16
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    Pergamon Press
    In:  Deep Sea Research Part A: Oceanographic Research Papers, 26 (Suppl. 1). pp. 1-8.
    Publication Date: 2020-08-04
    Type: Article , PeerReviewed
    Format: text
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  • 17
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    Springer
    In:  Deutsche Hydrographische Zeitschrift, 36 (2). pp. 61-77.
    Publication Date: 2016-11-02
    Description: Anhand hundertjähriger Meßreihen wurden langfristige Salzgehaltsänderungen in der Unterweser und ihre möglichen Ursachen untersucht. Dabei wurde angestrebt, die natürlichen und die anthropogenen Einflüsse auf den Salzgehalt zu trennen. Trotz des unvollständigen Datensatzes konnten der Einfluß des Einzugsgebietes und Salzgehaltsschwankungen des angrenzenden Meeresgebietes nahezu eliminiert werden. Wegen der langzeitigen Änderungen der Gezeiten in der Nordsee waren genaue Aussagen über die Auswirkung der in den letzten hundert Jahren in der Unterweser durchgeführten Baumaßnahmen auf den Salzgehalt nicht möglich. Unsere Ergebnisse geben Hinweise für moderne Meßnetze zur Bestimmung der Wasserqualität.
    Type: Article , PeerReviewed
    Format: text
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  • 18
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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
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  • 19
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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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  • 20
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    Springer
    In:  In: Hot Brines and Recent Heavy Metal Deposits in the Red Sea. , ed. by Degens, E. T. and Ross, D. A. Springer, New York, USA, pp. 131-137.
    Publication Date: 2013-01-15
    Type: Book chapter , NonPeerReviewed
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