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  • 11
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    In:  Cahiers de mécanique mathématique, 26 . pp. 74-80.
    Publication Date: 2016-09-07
    Type: Article , NonPeerReviewed
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  • 12
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    Bibliographisches Institut
    In:  In: Meyers Kontinente und Meere. Bibliographisches Institut, Mannheim, Germany, 308-309; 446-447.
    Publication Date: 2013-01-15
    Type: Book chapter , NonPeerReviewed
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  • 13
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    Japan Society for the Promotion of Science
    In:  In: The ocean world : proceedings of Joint Oceanographic Assembly, IAPSO, IABO, CMG, SCOR ; 13 - 25 September 1970, Tokyo, Japan. , ed. by Uda, M. Japan Society for the Promotion of Science, Tokyo, Japan, p. 121.
    Publication Date: 2014-06-10
    Type: Book chapter , NonPeerReviewed
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  • 14
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    Institut für Meereskunde
    In:  Kieler Meeresforschungen, 26 (1). pp. 21-42.
    Publication Date: 2018-07-24
    Type: Article , PeerReviewed
    Format: text
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  • 15
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    Nature Publishing Group
    In:  Nature, 244 (131). pp. 11-12.
    Publication Date: 2018-03-02
    Description: STEP-LIKE structures in temperature and salinity beneath the Mediterranean water have been observed in the Eastern Atlantic1–6. In Fig. 1 we show the stations where steps have been found in the area to the west of Gibraltar. Salt fingering as a result of double diffusive processes has been suggested as a possible cause for the generation of such step-like structures7. During cruise No. 23 of RV Meteor in 1971 we intended to study the small scale features of such structures8. Some previous observations6 in August/September 1970 had revealed an extensive zone where a “thermohaline staircase” existed (Fig. 1). We therefore selected stations in this area and close to it for the proposed study. A high resolution in situ conductivity-temperature-depth meter of the “Kieler Multi-Meeressonde” type was used for the vertical profiling of temperature and salinity.
    Type: Article , PeerReviewed
    Format: text
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  • 16
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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
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  • 17
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    Elsevier
    In:  Deep Sea Research and Oceanographic Abstracts, 21 (8). pp. 597-610.
    Publication Date: 2016-09-22
    Description: An experiment is described which was aimed at testing assumptions and predictions of the internal wave model suggested by Garrett and Munk (1972). Two moorings were set at a depth of 2660 m with a horizontal separation of 920 m only. The results of current and temperature measurements on these moorings indicate that the field of motion is probably horizontally isotropic in the inertio-gravitational wave band. The limiting frequency for horizontal coherence is three times the frequency predicted by the theoretical model. The phase of the vertical coherence is stable over a wide frequency range and the coherence decreases towards higher frequencies. This may be due to coherent motion contaminated by uncorrelated noise at high frequencies. The results are basically in agreement with the theoretical model when taking a number of modes below 10.
    Type: Article , PeerReviewed
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  • 18
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    Elsevier
    In:  Deep Sea Research and Oceanographic Abstracts, 21 (1). pp. 37-46.
    Publication Date: 2018-03-08
    Description: When determining vertical velocity spectra from temperature time series and the mean vertical temperature gradient, restrictions may arise friom the existence of fine-structre. Phillips (1971) and Garrett and Munk (1971_ have shown that the fine-structure contamination of internal gravity wave spectra can be written as a function of some statistical properties of the internal wave field and the vertical wave number spectrum of the fine-structure. A consistent set of current and temperature data was obtained during an experiment at Site D to study this problem. The wave number spectrum of the vertical temperature fine-structure and the apparent frequently spectrum of internal waves are determined from these data. In contrast to the asasumptions in the above models, our fine-structure data imply a wave number spectrum proportional to (wave number)−3 in the range which is important here. Using the above set of data, a model is suggested to describe the effect of fine-structure on vertical velocity spectra computed with the mean vertical temperature gradient. It indicates a maximum fine-structure contamination of the true frequency spectrum of internal gravity waves in the middle of the internal wave band, with less contamination at low and high frequencies.
    Type: Article , PeerReviewed
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  • 19
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    Deutsche Forschungsgemeinschaft
    In:  Meteor Forschungsergebnisse: Reihe A, Allgemeines, Physik und Chemie des Meeres, 14 . pp. 1-12.
    Publication Date: 2017-01-23
    Type: Article , PeerReviewed
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  • 20
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    Umschau Verl.
    In:  In: Erforschung des Meeres. , ed. by Dietrich, G. Umschau Verl., Frankfurt a.M., pp. 53-64.
    Publication Date: 2013-05-17
    Type: Book chapter , NonPeerReviewed
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