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  • AMS (American Meteorological Society)  (4)
  • Kiel : Inst. für Meereskunde, Abt. Meeresphysik  (3)
  • Sears Foundation of Marine Research  (1)
  • 1995-1999  (8)
  • 1
    Schlagwort(e): Forschungsbericht ; Hochschulschrift
    Beschreibung / Inhaltsverzeichnis: 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)
    Materialart: Buch
    Seiten: 129 S , graph. Darst., Kt
    Serie: Berichte aus dem Institut für Meereskunde an der Christian-Albrechts-Universität Kiel 288
    Sprache: Deutsch
    Anmerkung: Förderkennzeichen BMBF 03G0113A
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Buch
    Buch
    Kiel : Inst. für Meereskunde, Abt. Meeresphysik
    Schlagwort(e): Meereskunde ; SI-Einheiten
    Beschreibung / Inhaltsverzeichnis: 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.
    Materialart: Buch
    Seiten: 18 S , graph. Darst.
    Ausgabe: 3. überarb. Aufl
    Serie: Berichte aus dem Institut für Meereskunde an der Christian-Albrechts-Universität Kiel 101
    Sprache: Deutsch , Englisch
    Anmerkung: Text in dt. u. engl. Sprache
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Buch
    Buch
    Kiel : Inst. für Meereskunde, Abt. Meeresphysik
    Schlagwort(e): Report ; Dissertation ; Forschungsbericht ; Hochschulschrift
    Materialart: Buch
    Seiten: IV, 142 S. , Ill., graph. Darst., Kt.
    Serie: Berichte aus dem Institut für Meereskunde an der Christian-Albrechts-Universität Kiel 281
    Sprache: Deutsch
    Anmerkung: Literaturverz. S. 128 - 135 , Zugl.: Kiel, Univ., Diss., 1995
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    facet.materialart.
    Unbekannt
    Sears Foundation of Marine Research
    In:  Journal of Marine Research, 53 (6). pp. 929-957.
    Publikationsdatum: 2017-11-28
    Beschreibung: Two high-resolution hydrographic sections occupied during February, March 1989 in the western and eastern basins of the North Atlantic at 14.5N are combined to study the water mass structure and meridional mass and heat transports. Absolute velocities were determined using these data and an earlier section at 8N in a linear inverse analysis. Mass balance for several layers representing the main water masses in the region and a zero net divergence for the sum of geostrophic and Ekman transport between the two sections are assumed. Using the annual mean of Ekman transports (13.6 Sv, 14.5N), (15.2 Sv, 8N) based on the climatology by Isemer and Hasse (1985) the annual average fluxes for the sections at 8N and 14.5N have been calculated. For the annual mean the strength of the meridional overturning cell at 14.5N amounts to 15.9 Sv with an associated heat transport of 1.22 PW. A similar value can be obtained at 8N where the annual mean heat transport reaches 1.18 PW and the overturning cell measures 15 Sv. The total northward heat transport is strongly dominated by the wind-driven Ekman heat transport. 'In-situ' values of heat transport using the actual wind-driven transports for the respective months yield even higher estimates. Heat transport at 14.5N rises to 1.37 +/- 0.42 PW (February) and the maximum is now at the 8N section, 1.69 +/- 0.52 PW (May). Comparisons of our results with another tropical section at 11N occupied concurrently demonstrate the large variability in heat transport related to changes in the wind field. Due to extremely weak winds in the eastern Atlantic and a resulting low Ekman transport, the 'in-situ' value of heat transport through this section ranged between 0.30 +/- 0.18 PW and 0.59 +/- 0.18 PW depending on the value chosen for the Ekman transport. The lower of the two heat transport estimates results from calculations with the actual observed winds and the other using a monthly climatological mean. That even the computations with the climatological monthly mean give such a low heat transport points to additional changes in the baroclinic structures between 11N and 14.5N.
    Materialart: Article , PeerReviewed
    Format: text
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    facet.materialart.
    Unbekannt
    AMS (American Meteorological Society)
    In:  Bulletin of the American Meteorological Society, 76 (1). pp. 5-11.
    Publikationsdatum: 2019-01-21
    Beschreibung: Widespread and sustained in situ ocean measurements are essential to an improved understanding of the state of the ocean and its role in global change. Merchant marine vessels can play a major role in ocean monitoring, yet apart from routine weather observations and upper-ocean temperature measurements, they constitute a vastly underutilized resource due to lack of suitable instrumentation. Examples of ways in which vessels can assist include profiling techniques of physical properties, chemical sampling via automated water samplers, optical techniques to measure various biological parameters, and ground truth measurements for remote sensing from orbiting and geostationary satellites. Further, ships can act as relays between subsurface instrumentation and satellite communication services. To take advantage of the opportunities that the maritime industry can provide, two steps must be taken. The first is to initiate an instrumentation development program with emphasis on techniques optimized for highly automated use onboard ships at 15-20-kt speeds. The second is to forge partnerships or links between academic and government laboratories and the maritime industry for the institution and maintenance of such monitoring programs. No doubt significant resources will be required, but in the long run the improved ability to monitor the state of ocean in situ will make the effort more than worthwhile.
    Materialart: Article , PeerReviewed
    Format: text
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    facet.materialart.
    Unbekannt
    AMS (American Meteorological Society)
    In:  Journal of Physical Oceanography, 25 (8). pp. 1771-1787.
    Publikationsdatum: 2018-04-05
    Beschreibung: The Cape Verde Frontal Zone separates the North and the South Atlantic Central Waters in the eastern North Atlantic. It also represents the boundary between the ventilated subtropical gyre and the quasi-stagnant shadow zone in the southeast. The thermohaline front is nearly compensated with respect to density, and density parameters RP, suggest the existence of double-diffusive processes. Datasets from three cruises to the region, approximately one year apart each, are used to determine the effects of double-diffusive diapycnal versus isopycnal mixing. For this purpose results from the usual temperature-salinity analysis assuming isopycnal mixing are compared to results from a multiparameter analysis where nutrient and oxygen data are also used. Significant diapycnal fluxes are found in the frontal zone between 200 and 300 m, with water mass contents being changed by more than 20% through diapycnal mixing. The associated buoyancy fluxes have a similar magnitude as surface fluxes in the area and thus represent an important contribution to the vertical balances of heat and salt.
    Materialart: Article , PeerReviewed
    Format: text
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
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    Unbekannt
    AMS (American Meteorological Society)
    In:  Journal of Physical Oceanography, 29 (11). pp. 2785-2801.
    Publikationsdatum: 2020-08-04
    Beschreibung: The Rio Grande Rise acts as a natural barrier for the equatorward flow of Antarctic Bottom Water in the subtropical South Atlantic. In addition to the Vema Channel, the Hunter Channel cuts through this obstacle and offers a separate route for bottom-water import into the southern Brazil Basin. On the occasion of the Deep Basin Experiment, a component of the World Ocean Circulation Experiment (WOCE), the expected deep flow through the Hunter Channel was directly observed for the first time by an array of moored current meters and thermistor chains from December 1992 to May 1994. Main results are (i) the Hunter Channel is, in fact, a conduit for bottom-water flow into the Brazil Basin. Our new mean transport from moored current meters [2.92 (±1.24) × 106 m3 s−1] is significantly higher than earlier estimates that were based on geostrophic calculations. (ii) During the WOCE observational period a tendency toward increased bottom-water temperatures was observed. This observation from the Hunter Channel is consistent with findings from the Vema Channel. (iii) The overflow through the Hunter Channel is highly variable and puts in perspective earlier synoptic geostrophic transport estimates
    Materialart: Article , PeerReviewed
    Format: text
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    facet.materialart.
    Unbekannt
    AMS (American Meteorological Society)
    In:  Journal of Physical Oceanography, 29 . pp. 145-157.
    Publikationsdatum: 2018-04-06
    Beschreibung: As a contribution to the WOCE Deep Basin Experiment, an array of current meters with individual record lengths exceeding ii years was set across the southern boundary of the Brazil Basin between early 1991 and early 1996. The array spanned the Santos Plateau, the Vema Channel, and the Hunter Channel, all areas believed to be important for transport of Antarctic Bottom Water between the Argentine and Brazil Basins. From the combination of geostrophic velocities computed from hydrographic stations and those directly measured, the total transport of bottom water (potential temperature below 2 degrees C) is estimated to be about 6.9 Sv (Sv = 10(6) m(3) s(-1)) northward, with about 4 Sv coming through the Vema Channel and the remainder through the Hunter Channel. Properties of the eddy field are also discussed. Eddy energy levels and their spatial distribution are similar to comparable regimes in the North Atlantic. Integral timescales vary from a few days to several weeks with distance from the Brazil Current and the western boundary. The eddy heat Bur is in the same direction as the heat advection by the mean flow but considerably smaller.
    Materialart: Article , PeerReviewed
    Format: text
    Standort Signatur Einschränkungen Verfügbarkeit
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