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  • 1995-1999  (7)
  • 1985-1989  (5)
  • 1
    Electronic Resource
    Electronic Resource
    Book reviews (1985)
    Springer
    GeoJournal 11 (1985), S. 284-286 
    Details
    ISSN: 1572-9893
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00186342
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    Paper (German National Licenses)
    Fulltext
  • 2
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    A quasi-synoptic survey of the thermocline circulation and water mass distribution within the Canary Basin (1986)
    AGU (American Geophysical Union)
    In:  Journal of Geophysical Research: Oceans, 91 (C8). pp. 9739-9748.
    Details
    Publication Date: 2019-04-04
    Description: Shipboard hydrographic measurements and moored current meters are used to infer both the large-scale and mesoscale water mass distribution and features of the general circulation in the Canary Basin. We found a convoluted current system dominated by the time-dependent meandering of the eastward flowing Azores Current and the formation of mesoscale eddies. At middepths, several distinctly different water masses are identified: Subpolar Mode and Labrador Sea Water are centered in the northwest, Subantarctic Intermediate Water is centered in the southeast, and the saltier, warmer Mediterranean tongue lies between them. Mesoscale structures of these water masses suggest the presence of middepth meanders and detached eddies which may be caused by fluctuations of the Azores Current.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1029/JC091iC08p09739
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 3
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    Reconstructed Mediterranean Salt Lens Trajectories (1987)
    AMS (American Meteorological Society)
    In:  Journal of Physical Oceanography, 17 (1). pp. 158-163.
    Details
    Publication Date: 2020-08-04
    Description: The existence of energetic anticyclonic mid-depth vortices of Mediterranean Water (meddies) questions the validity of a conventional advective–diffusive balance in the eastern Atlantic subtropical gyre. A mesoscale experiment in the Azores–Madeira region reveals a link of these meddies to large-scale subsurface meanders. For the first time it is shown that meddies may have strong surface vorticity, indicative of a generation process involving the Azores Current—a deep reaching near-surface jet.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1175/1520-0485(1987)017〈0158:RMSLT〉2.0.CO;2
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 4
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    Currents, fronts and eddy fluxes in the Canary Basin (1985)
    Elsevier
    In:  Progress in Oceanography, 14 . pp. 231-257.
    Details
    Publication Date: 2016-05-10
    Description: Hydrographic data from two cruises in the Canary Basin (Meteor 57, July 1981; Poseidon 86, April 1982) are analysed with respect to current distribution and lateral heat flux in the Azores-Madeira region. The first part of the data base consists of long transects of XBT and G.E.K. measurements between Cape Finisterre (North West Spain) and the northern Canary Basin, where several year-long current meter records exist. Further information is obtained by thermosalinograph surface data and by expendable current profilers (XCP). Geostrophic currents are derived from XBT profiles, using the tight temperature-salinity relationship in the depth range of the Warmwassersphäre. The results compare well with the G.E.K. and XCP current observations. The second part consists of CTD data from an eddy resolving, box-shaped CTD survey (500 × 500 km2) centered at the mooring location (33°N, 22°W), The observations are supplemented by satellite-buoy trajectories. Horizontal parameter distribution is shown in terms of objectively contoured maps. Bands of spatially enhanced energetic structures, seen in the long transects are further resolved by the box survey as a deep jet-like current system cross the Canary Basin in a west-east direction. Associated with this Azores Current is a frontal zone with near-surface temperature and salinity steps of order 2 K and 0.3 practical salinity units. The dynamic topography field can be decomposed into a linear background field, a Rossby wave and a mesoscale eddy field. We find that major contributions to the meridional eddy heat flux are confined to the vicinity of the Azores current frontal zone. It is shown that the principal balance in the temperature equation is between heating by the mean horizontal advection terms and cooling by the eddy flux divergence.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1016/0079-6611(85)90013-8
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 5
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    Forschungsreise 159/3 von FS POSEIDON [POS159/3] Porto - Kiel : Bericht des wissenschaftlichen Leiters (1989)
    In:  UNSPECIFIED, Kiel, 12 pp.
    Details
    Publication Date: 2015-02-04
    Description: Zeitplan: 9. Juni 1989 Auslaufen Porto, 26. Juni Einlaufen Kiel
    Type: Report , NonPeerReviewed
    Format: text
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    OceanRep: Report - Cruise Report
  • 6
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    Modeling the oceanic mixed-layer and effects of deep convection (1998)
    Kluwer
    In:  In: Buoyant Convection in Geophysical Flows. , ed. by Plate, E. J. Kluwer, Norwell, Mass., pp. 157-183.
    Details
    Publication Date: 2020-04-06
    Description: Progress in modeling the oceanic circulation has been achieved in the last few years by increasing the speed of computers and by refining modeling techniques. The dynamics of major current systems such as the Gulfstream-North Atlantic Current and their corresponding eddy variability is reasonably well understood [58, 32]. Climate models predict global warming as a result of increasing CO2 in the atmosphere and forecast El Nino events in the equatorial Pacific [50]. Freshwater imbalances in the deep convection regions of the polar and subpolar regions of the North Atlantic result in alternating multiple equilibrium states of the global thermohaline vertical circulation - the ”conveyor belt” [53]. On the other hand, large scale modeling relies heavily on the parametrization of ”subgrid” processes. This is especially true for the oceanic boundary layer. Here the modeling suffers from inappropriate information on the fluxes at the air-sea interface. Most coupled models with simplified fluxes do not represent the surface temperature well enough and water mass characteristics drift away from the initial state. Restoring conditions at the sea surface are needed to force the model back to the observations. The fluxes analyzed from runs with restoring conditions show substantial errors. It is evident that progress in the reliability of long-term predictions of climate variations can only be made with a better representation of mixed layer dynamics.
    Type: Book chapter , NonPeerReviewed
    Format: text
    DOI: 10.1007/978-94-011-5058-3_7
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    OceanRep: Book chapter
  • 7
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    Parameterization of Processes in Deep Convection Regimes (1998)
    Kluwer Academic Publishers
    In:  In: Ocean Modelling and Parameterization. , ed. by Chassignet, E. and Verron, J. Kluwer Academic Publishers, Dordrecht, Netherlands, pp. 191-214. ISBN 0-7923-5228-9
    Details
    Publication Date: 2020-04-20
    Type: Book chapter , NonPeerReviewed
    Format: text
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    OceanRep: Book chapter
  • 8
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    The Gulf Stream, the North Atlantic Current, and the Origin of the Azores Current (1996)
    Bornträger
    In:  In: The Warmwatersphere of the North Atlantic Ocean. , ed. by Krauß, W. Bornträger, Berlin, Germany, pp. 291-337. ISBN 3-443-01033-4
    Details
    Publication Date: 2020-04-09
    Type: Book chapter , NonPeerReviewed
    Format: text
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    OceanRep: Book chapter
  • 9
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    Structure of the Mediterranean water and meddy characteristics in the Northeastern Atlantic (1996)
    Bornträger
    In:  In: The Warmwatersphere of the North Atlantic Ocean. , ed. by Krauß, W. Bornträger, Berlin, Germany, pp. 365-395. ISBN 3-443-01033-4
    Details
    Publication Date: 2020-04-09
    Type: Book chapter , NonPeerReviewed
    Format: text
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    OceanRep: Book chapter
  • 10
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    Fahrtbericht Poseidon-Reise 222-1/2 [POS222-1/2], Abschnitt 1: Reykjavik-Reykjavik 7.8.-12.8.1996, Abschnitt 2: Reykjavik-Reykjavik 13.8.-28.8.1996 : Overflow '96 (1996)
    Institut für Meereskunde an der Universität Kiel
    In:  Institut für Meereskunde an der Universität Kiel, Kiel, 10 pp.
    Details
    Publication Date: 2015-02-25
    Description: Fahrtgebiet: Irmingersee und Ausgang Dänemarkstraße Zweck: Hydrographische Aufnahme im Ausbreitungsgebiet des Overflow-Wassers, Auslegung einer Inverted Echo Sounder Verankerung (I.E.S), Auslegung von satelliten-georteten Driftbojen, Schleppen eines neuen geomagnetischen Elektrokinetographs (TTM3), Erprobung eines GPS-Arrays zur hochgenauen Ortsbestimmung Wiss. Ziele: Ermittlung mesoskaliger Strukturen im Overflow als Eingangsdaten für Simulationsrechnungen
    Type: Report , NonPeerReviewed
    Format: text
    DOI: 10.2312/cr_po222_1-2
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    OceanRep: Report - Cruise Report
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