Articles | Volume 10, issue 3
Ocean Sci., 10, 459–471, 2014
Ocean Sci., 10, 459–471, 2014

Research article 10 Jun 2014

Research article | 10 Jun 2014

Modelling seasonal circulation and thermohaline structure of the Caspian Sea

M. Gunduz1 and E. Özsoy2 M. Gunduz and E. Özsoy
  • 1Institute of Marine Sciences and Technology, Dokuz Eylul University, Izmir, Turkey
  • 2Institute of Marine Sciences, Middle East Technical University, Erdemli, Turkey

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.