Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2011, Vol. 8, No. 4, pp. 209-218
The Black and Azov seas: a comparative analysis of the sea surface temperature variability (1982-2009, satellite information)
A.I. Ginzburg
, A.G. Kostianoy
, N.A. Sheremet
P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, 36, Nakhimovsky Pr., Moscow, 117997, Russia
Investigation of interannual and seasonal variability of sea surface temperature (SST) of the Black Sea (the sea as a whole and three its regions: the near-Bosporus, north-eastern and near-Kerch) and two open areas of the Sea of Azov (the central one and western part of the Taganrog Bay) during 1982-2009 was carried out on the base of satellite dataset of Pathfinder project (weekly values of temperature with spatial resolution of 4 km). For the Sea of Azov, the study with using satellite SST values was limited by navigation season (April-November). Further warming of the Black Sea was established, with the trend of mean annual SST in 1982-2009 of about 0.06ºC/year, the 2007-2009 years being the years with the highest mean annual SST values in the period under consideration. In the winter season of 1982-2009, warming of the Black Sea occurred with velocity of ~0.04ºС/year. A character of interannual variability of SST in the Black Sea and Sea of Azov, averaged for the warm period (April-November), was similar in general features. Temperature trends in both open regions of the Sea of Azov in July-September were positive (as distinct from the period 1945-1986), with SST increasing (in average) since about the mid-1990s. Regional differences in SST seasonal cycles in both seas were demonstrated. In the central area of the Sea of Azov, SST is lower (higher) during the spring warming (autumnal cooling) than in the Taganrog Bay, whereas maximum summer temperature (during July in general) is higher.
Keywords: the Black Sea, the Azov Sea, sea surface temperature, interannual variability, seasonal variability, temperature trend
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