THE RELATION BETWEEN CURRENT ANDWIND IN UPWELLING AREA IN THE EASTERN COASTAL OF CASPIAN SEA USING NUMERICAL SIMULATION

The Caspian Sea is the largest inland body of water on the planet and consists of three basins: the northern, middle and southern basins. The sea is located on the northernhemisphere between 36.5 N to 47.2N and 46.5E to 54.1E and receives a yearly input of about 300 km3of fresh water from approximately 130 rivers [1, 2]. In the summer theeastern coast of the middle part of the Caspian Sea experiences an upwelling that is considered to be the most important thermal and dynamical phenomenon. Theupwelling area is a region of 20 km wide and extends 10s of km along the coast; also the timescale of such phenomena was about a few weeks. From June to Augustthe advection of cold upwelling waters occur from eastern area of the Caspian Sea [3, 4]. In this study, the relation between surface current and the wind in the eastern coast of middle of the Caspian Sea for 2004 was studied using the three-dimensional ocean model COHERENS (Coupled Hydrodynamical Ecological model for Regional Shelf seas).