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  • 11
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    Elsevier
    In:  Progress in Oceanography, 5 . pp. 81-94.
    Publication Date: 2016-10-07
    Type: Article , PeerReviewed
    Format: text
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  • 12
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    Elsevier
    In:  Deep Sea Research and Oceanographic Abstracts, 11 (6). pp. 881-890.
    Publication Date: 2016-09-22
    Description: Observations of temperature and electrical conductivity by a recording in situ salinometer are discussed in respect oo the physical processes connected with the renewal of North Atlantic deep water. The measured fine structure of the layering suggests that the downward movement of cooled surface water is combined with horizontal mixing down to more than 1000 m depth. This is confirmed by the existence of water elements which have slightly different temperature and salinity. Curves of temperature, conductivity, and salinity and T-S diagrams are shown.
    Type: Article , PeerReviewed
    Format: text
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  • 13
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    Elsevier
    In:  Earth and Planetary Science Letters, 113 (1-2). pp. 287-292.
    Publication Date: 2018-03-02
    Description: Dense Antarctic Bottom Water formed around the continent of Antarctica spreads northward in the Atlantic underneath North Atlantic Deep Water, gradually mixing and upwelling into it. This Antarctic Water forms a significant element of the meridional circulation in both directions: northward as bottom water and southward as deep water. It is important to determine the strength of each component to assess its role in ocean circulation. Such measurements are useful when made in constricted pathways because any flow is more clearly defined. A new set of fine-resolution hydrograhic measurements in the Hunter Channel of the South Atlantic Ocean has been obtained, which allow the geostrophic bottom flow there to be estimated for the first time. The northward flow through the Hunter Channel of water cooler than 2-degrees-C is thus estimated to be 0.7 X 10(6) m3 s-1.
    Type: Article , PeerReviewed
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  • 14
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    Deutsche Forschungsgemeinschaft
    In:  Meteor Forschungsergebnisse: Reihe A, Allgemeines, Physik und Chemie des Meeres, 4 . pp. 1-76.
    Publication Date: 2017-01-23
    Type: Article , PeerReviewed
    Format: text
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  • 15
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    Elsevier
    In:  Deep Sea Research Part II: Topical Studies in Oceanography, 52 (3-4). pp. 375-381.
    Publication Date: 2020-08-05
    Type: Article , PeerReviewed
    Format: text
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  • 16
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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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  • 17
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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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  • 18
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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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  • 19
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    Elsevier
    In:  Deep Sea Research and Oceanographic Abstracts, 23 (7). pp. 613-628.
    Publication Date: 2018-03-08
    Description: A complete set of linearly independent relationships among the different cross spectral components obtained from pairs of moored instruments is derived which can be utilized to test whether or not the observed fluctuations within the internal wave frequency band represent a field of propagating internal waves. A further complete set of relationships is derived which enables to test whether or not the internal wave field is horizontally isotropic and (or) vertically symmetric. These relations are compared with corresponding relations for alternative models (standing internal wave modes, three-dimensional isotropic turbulence) and their capability to discriminate between the various models is investigated. The tests are applied to a set of data for which it is found that the observed fluctuations are consistent with both propagating and standing internal waves whereas isotropic turbulence must be rejected for the most part of the internal wave frequency band.
    Type: Article , PeerReviewed
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  • 20
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    Elsevier
    In:  Deep Sea Research and Oceanographic Abstracts, 18 (2). pp. 179-191.
    Publication Date: 2016-09-22
    Description: A study is described which attempts to obtain information about the vertical correlation of ocean currents at frequencies higher than inertial. Current velocity and temperature data for sensor separations of 4–12 m were taken with a mooring at ‘Site D’. The coherence and phase spectra for velocity component pairs reveals that motions are rotational at low frequencies. A cut-off frequency exists above which coherence drops to low values. The limiting frequency coincides with the minimum Väisälä frequency of the total water column. These cross-spectral properties support the assumption that the motion in this frequency range is governed by internal wave dynamics. The coherence and phase spectra of temperature pairs indicate that a field of temperature structure is superimposed on the mean field which is weakly correlated to the field of motion.
    Type: Article , PeerReviewed
    Format: text
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