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  • 1
    Online Resource
    Online Resource
    Sediments in Bottom-Arrested Gravity Plumes: Numerical Case Studies*
    American Meteorological Society ; 1998
    In:  Journal of Physical Oceanography Vol. 28, No. 11 ( 1998-11), p. 2250-2274
    Details
    In: Journal of Physical Oceanography, American Meteorological Society, Vol. 28, No. 11 ( 1998-11), p. 2250-2274
    Type of Medium: Online Resource
    ISSN: 0022-3670 , 1520-0485
    URL: Article
    DOI: 10.1175/1520-0485(1998)028〈2250:SIBAGP〉2.0.CO;2
    Language: English
    Publisher: American Meteorological Society
    Publication Date: 1998
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  • 2
    Online Resource
    Online Resource
    Results of a semi-implicit two-step method for the simulation of markedly nonlinear flow in coastal seas
    Elsevier BV ; 1983
    In:  Continental Shelf Research Vol. 2, No. 4 ( 1983-09), p. 255-274
    Details
    In: Continental Shelf Research, Elsevier BV, Vol. 2, No. 4 ( 1983-09), p. 255-274
    Type of Medium: Online Resource
    ISSN: 0278-4343
    URL: Article
    DOI: 10.1016/0278-4343(82)90021-8
    Language: English
    Publisher: Elsevier BV
    Publication Date: 1983
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    SSG: 13
    SSG: 14
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  • 3
    Online Resource
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    Simulation of tides, residual flow and energy budget in the Gulf of California
    Elsevier BV ; 1998
    In:  Oceanologica Acta Vol. 21, No. 3 ( 1998-5), p. 429-446
    Details
    In: Oceanologica Acta, Elsevier BV, Vol. 21, No. 3 ( 1998-5), p. 429-446
    Type of Medium: Online Resource
    ISSN: 0399-1784
    URL: Article
    DOI: 10.1016/S0399-1784(98)80028-5
    Language: English
    Publisher: Elsevier BV
    Publication Date: 1998
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  • 4
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    Online Resource
    Application of a transient reduced gravity plume model to the Denmark Strait Overflow
    American Geophysical Union (AGU) ; 1994
    In:  Journal of Geophysical Research: Oceans Vol. 99, No. C6 ( 1994-06-15), p. 12375-12396
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 99, No. C6 ( 1994-06-15), p. 12375-12396
    Abstract: A hydrostatic, reduced gravity, two‐dimensional primitive equation numerical model for the simulation of transient bottom arrested gravity plumes was developed by adopting an algorithm from a wadden sea model (a model that simulates the wetting and drying of mud flats, sand banks, etc.) with a movable lateral boundary. The vertically integrated nonlinear rotational model accounts for the dissipation of momentum due to bottom friction and for the entrainment of water mass properties from a spatially structured but stagnant ambient water body. It predicts the temporal and spatial evolution of the flow field and the water mass modification within a gravity plume that descends on an arbitrary topography. Previous model investigations considered a laterally integrated streamtube, whereas our model resolves the plume horizontally. In the streamtube approach it was assumed that the plume descends in a stationary, almost geostrophic balance modified only by bottom drag and entrainment. The results of this model demonstrate that this balance may be disturbed whenever the plume encounters topographic disturbances, which, for the initial intruding phase in particular, accounts for its highly transient character. The model results are in good agreement with theoretical and laboratory investigations and with observations, as is demonstrated by some basic test experiments. An application to the overflow of dense water through the Denmark Strait is presented.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/94JC00528
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1994
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    detail.hit.zdb_id: 2969341-X
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    detail.hit.zdb_id: 3094268-8
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    detail.hit.zdb_id: 3094181-7
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    SSG: 16,13
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  • 5
    Online Resource
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    Sediment‐induced slope convection: Two‐dimensional numerical case studies
    American Geophysical Union (AGU) ; 1999
    In:  Journal of Geophysical Research: Oceans Vol. 104, No. C9 ( 1999-09-15), p. 20509-20522
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 104, No. C9 ( 1999-09-15), p. 20509-20522
    Abstract: The potential role of sediment in oceanic slope convection is examined by means of a rotational numerical model applied in a vertical ocean slice. The model couples the hydrodynamics with transport, settling, deposition, and resuspension of fine‐grained silty muds. Sediment plumes (turbidity currents), descending on an idealized continental slope with constant bottom slope, are driven from an initial density anomaly caused by an assumed suspension of sediment in shelf water. A number of case studies were conducted in order to understand the effects of (1) different suspended sediment concentrations in shelf water as compared to an equivalent salinity anomaly (salt brine release), (2) different oceanic density stratifications, and (3) resuspension of bed sediment. It is demonstrated that sediment plumes may account for a downslope transport of water, which, once void of its sediment load, becomes lighter than water above. Then, sedimentation along the slope, with a maximum adjacent to the foot of the slope, drives vigorous upward convection (parameterized in the model), stirring slope water over a depth range of several hundred meters. This is in agreement with field observations from a tropical ocean. Detrainment associated with sediment settling constitutes an important mechanism inherent in sediment plumes. It not only induces upward convection but also prevents the rapid increase in plume thickness caused by entrainment as compared to “water mass plumes.” Owing to a balance between entrainment and detrainment, the sediment plume, while descending on the slope, attains constant height and bed shear velocities. In order to facilitate the detection of sediment plumes in (historical or future) field data, we describe their simulated traces in terms of water mass properties and flow anomalies.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/1999JC900157
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1999
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    detail.hit.zdb_id: 2969341-X
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    detail.hit.zdb_id: 3094268-8
    detail.hit.zdb_id: 710256-2
    detail.hit.zdb_id: 2016804-4
    detail.hit.zdb_id: 3094181-7
    detail.hit.zdb_id: 3094219-6
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    SSG: 16,13
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  • 6
    Online Resource
    Online Resource
    Simulations of sub-mesoscale oceanic convection and ice–ocean interactions in the Greenland Sea
    Elsevier BV ; 1999
    In:  Deep Sea Research Part II: Topical Studies in Oceanography Vol. 46, No. 6-7 ( 1999-6), p. 1427-1455
    Details
    In: Deep Sea Research Part II: Topical Studies in Oceanography, Elsevier BV, Vol. 46, No. 6-7 ( 1999-6), p. 1427-1455
    Type of Medium: Online Resource
    ISSN: 0967-0645
    URL: Article
    DOI: 10.1016/S0967-0645(99)00029-6
    Language: English
    Publisher: Elsevier BV
    Publication Date: 1999
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    detail.hit.zdb_id: 1500312-7
    SSG: 14
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  • 7
    Online Resource
    Online Resource
    Improved representation of topographic effects by a vertical adaptive grid in vector-ocean-model (VOM). Part I: Generation of adaptive grids
    Elsevier BV ; 2008
    In:  Ocean Modelling Vol. 22, No. 3-4 ( 2008-1), p. 114-127
    Details
    In: Ocean Modelling, Elsevier BV, Vol. 22, No. 3-4 ( 2008-1), p. 114-127
    Type of Medium: Online Resource
    ISSN: 1463-5003
    URL: Article
    DOI: 10.1016/j.ocemod.2008.02.003
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2008
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    SSG: 14
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  • 8
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    Online Resource
    Mixing in the Bosphorus Strait and the Black Sea continental shelf: observations and a model of the dense water outflow
    Elsevier BV ; 2001
    In:  Journal of Marine Systems Vol. 31, No. 1-3 ( 2001-11), p. 99-135
    Details
    In: Journal of Marine Systems, Elsevier BV, Vol. 31, No. 1-3 ( 2001-11), p. 99-135
    Type of Medium: Online Resource
    ISSN: 0924-7963
    URL: Article
    DOI: 10.1016/S0924-7963(01)00049-5
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2001
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    detail.hit.zdb_id: 1041191-4
    SSG: 14
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  • 9
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    Sensitivity of atmosphere-ocean heat exchange and heat content in the North Sea and the Baltic Sea : ATMOSPHERE-OCEAN HEAT EXCHANGE AND HEAT CONTENT
    Stockholm University Press ; 2002
    In:  Tellus A Vol. 51, No. 4 ( 2002-09-19), p. 526-549
    Details
    In: Tellus A, Stockholm University Press, Vol. 51, No. 4 ( 2002-09-19), p. 526-549
    Type of Medium: Online Resource
    ISSN: 0280-6495 , 1600-0870
    URL: Article
    DOI: 10.1034/j.1600-0870.1992.00006.x
    RVK:
    RA 1000
    RVK:
    UA 8382.1
    Language: English
    Publisher: Stockholm University Press
    Publication Date: 2002
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    SSG: 16,13
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  • 10
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    Shallow, brine‐driven free convection in polar oceans: Nonhydrostatic numerical process studies
    American Geophysical Union (AGU) ; 1998
    In:  Journal of Geophysical Research: Oceans Vol. 103, No. C3 ( 1998-03-15), p. 5577-5593
    Details
    In: Journal of Geophysical Research: Oceans, American Geophysical Union (AGU), Vol. 103, No. C3 ( 1998-03-15), p. 5577-5593
    Abstract: A three‐dimensional nonhydrostatic convection model, which accounts for small‐scale ice‐ocean interactions, is used to study convection in shallow sea (coastal) ice formation regions which contribute significantly to water mass formation in both the Arctic and Antarctic Ocean. For certain conditions the results presented in this paper are also transferable to shallow open ocean convection. The model is applied to an initial well‐mixed ocean at rest with a temperature close to the freezing point. The ocean, initially free of ice, is exposed to cold and dry polar air. We consider situations in which the mean wind stress is negligible but wind fluctuations result in (small) sensible and latent heat fluxes corresponding to a wind speed of 2 m s −1 . Cellular convection patterns develop in the ocean, finally occupying a mean aspect ratio of 2. Convection is driven by salt release during frazil ice formation due to supercooling. Newly forming sea ice is collected along convergent (downwelling) regions at the surface, thus showing also cellular structures. Because the area of insulating sea ice remains small, new ice can be formed continuously, and the surface buoyancy forcing remains large. This collection of ice in small fractions of the sea surface results in a latent heat polynya type, which is very effective in terms of dense water mass formation. A comparison of the three‐dimensional model and a two‐dimensional (slice) model shows that key results can be reproduced with the slice model. In summary, the results of the process studies indicate that cellular features in the sea ice cover, which may be detectable by remote sensing techniques, are closely related to active brine‐driven convection.
    Type of Medium: Online Resource
    ISSN: 0148-0227
    URL: Article
    DOI: 10.1029/97JC02680
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1998
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    detail.hit.zdb_id: 3094197-0
    SSG: 16,13
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