SUBTIDAL SEA-LEVEL VARIATIONS IN THE SEA OF MARMARA, THEIR INTERACTIONS WITH NEIGHBORING SEAS AND RELATIONS TO WIND FORCING

Subtidal sea level fluctuations in the Sea of Marmara, their interacti ons with neighbouring seas (Black Sea and Aegean) and relations to win d forcing were examined over a three-year (1992-1994) period. Although the dominant sea level fluctuations occurred at time scales greater t han 10 days, there are shorter period fluctuations occurring between 3 -8 days. Subtidal sea levels for Sea of Marmara are highly coherent fo r all subtidal frequencies. There is no cross coherency for periods gr eater than 2.5 days between Sea of Marmara and Black Sea, while there are same coherent fluctuations in subtidal band between Sea of Marmara and the Aegean Sea. Local wind forcing is important for the Sea of Ma rmara and most of the sea level change is driven by NE-SW wind for Erd ek and Fenerbahce. However, at longer time scales, nonlocal contributi on is important.