Caspian Sea surface circulation variability inferred from satellite altimeter and sea surface temperature

Gündüz, Murat

doi:10.1002/2013jc009558

Cited by 16 publications

(6 citation statements)

References 18 publications

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“…From satellite-derived products, Gunduz (2014) provided a description of geostrophic currents and highlighted the strong interannual variability of the Caspian Sea circulation. The CCS is dominated by a cyclonic gyre in the winter which briefly switches to an anti-cyclonic circulation during summer while the SCS exhibits a dipole pattern (anticyclonic in the north and cyclonic further south).…”

Section: Introductionmentioning

confidence: 99%

A fully-coupled atmosphere-ocean-wave model of the Caspian Sea

Bruneau

Toumi

2016

Ocean Modelling

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Located in the mid-latitudes, the Caspian Sea is the largest enclosed basin in the world. A fully-coupled atmosphere-ocean-wave model of the Caspian Sea at high resolution (8km) for a period of three years is presented. After validating each component of the modelling platform, the wave state of the Caspian Sea is studied. Results show very different wave regimes between the three different basins, a strong seasonality and an almost swell-free state.It is shown here that waves modify the horizontal eddy viscosity and vertical heat diffusion. However, due to a reasonably weak annual wave state, these effects are restricted to the upper-ocean layer (< 30 m) except during the most severe events (100 m).

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Section: Introductionmentioning

confidence: 99%

A fully-coupled atmosphere-ocean-wave model of the Caspian Sea

Bruneau

Toumi

2016

Ocean Modelling

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“…The currents are primarily wind-generated. Horizontal dynamics is characterized by predominating cyclonic circulation at the sea center and by generation of separate local eddies [29].…”

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confidence: 99%

Satellite Survey of Internal Waves in the Black and Caspian Seas

Lavrova

Mityagina

2017

Remote Sensing

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Abstract:The paper discusses the results of a study of short-period internal waves (IWs) in the Black and Caspian Seas from their surface manifestations in satellite imagery. Since tides are negligible in these seas, they can be considered non-tidal. Consequently, the main generation mechanism of IWs in the ocean-interaction of barotropic tides with bathymetry-is irrelevant. A statistically significant survey of IW occurrences in various regions of the two seas is presented. Detailed maps of spatial distribution of surface manifestations of internal waves (SMIWs) are compiled. Factors facilitating generation of IWs are determined, and a comprehensive discussion of IW generation mechanisms is presented. In the eastern and western coastal zones of the Black Sea, where large rivers disembogue, intrusions of fresh water create hydrological fronts that are able to generate IWs. At the continental shelf edge, on the west and northwest of the Black Sea and near the Crimean Peninsula, IWs are generated primarily due to relaxation of coastal upwelling and inertial oscillations associated with hydrological fronts. In addition, IWs can be formed at sea fronts associated with the passage of cold eddies. In the Caspian Sea, seiches are the main source of the observed IWs.

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“…During the winter, wind blows to the west, and in summer the wind direction changes dramatically and the wind starts to blow to the south. Gunduz (2014) has shown that variation of the wind speed and direction (Fig. 5 in the paper) may have an influence on the changing of the cyclonic circulation in winter to the anticyclonic one in summer in the MCS.…”

Section: Seasonal Circulationmentioning

confidence: 84%

Modelling seasonal circulation and thermohaline structure of the Caspian Sea

Gündüz

Özsoy

2014

Ocean Sci.

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Abstract. The wind-and buoyancy-driven seasonal circulation of the Caspian Sea is investigated for a better understanding of its basin-wide and mesoscale dynamics, mixing and transport. The model successfully reproduces the following basic elements of the circulation: the southward-flowing current systems along the eastern and western coasts, the upwelling along the eastern coast, the cyclonic circulation in the Middle Caspian Sea (MCS), especially in winter, and the cyclonic and anticyclonic cells of circulation in the South Caspian Sea (SCS). The observed seasonal variability of sea level and sea surface temperature (SST) is well reproduced. Mesoscale structures, not always evident from hydrographic observations, are identified.

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Caspian Sea surface circulation variability inferred from satellite altimeter and sea surface temperature

Cited by 16 publications

References 18 publications

A fully-coupled atmosphere-ocean-wave model of the Caspian Sea

A fully-coupled atmosphere-ocean-wave model of the Caspian Sea

Satellite Survey of Internal Waves in the Black and Caspian Seas

Modelling seasonal circulation and thermohaline structure of the Caspian Sea

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