Determination of the Occurrence of Atmospheric Blockings over the Caspian Sea Region in Winters of 1959–2022 and Their Influence on the Ice Regime of the Northern Caspian Sea
Kholoptsev A.V. Naurozbayeva Z.K.
December 2024Pleiades Publishing
Izvestiya, Atmospheric and Oceanic Physics
2024#60Issue Suppl 2S298 - S307 pp.
Abstract: The frequency of atmospheric blockings (ABs) in the winters of 1959–2022 and their impact on the ice cover of the northern Caspian Sea have been evaluated. ERA5 reanalysis is used, incorporating data from hydrometeorological stations in the Caspian region. It is found that air temperatures during blockings are lower than when blockings are absent. A significant relationship exists for the Caspian region between the decrease in the frequency of ABs, the sum of negative air temperatures, and ice cover thickness.
air temperature , atmospheric blockings , atmospheric pressure , Caspian Sea , ice regime , ice thickness , reanalysis , sum of negative air temperatures
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Zubov State Oceanographic Institute, Sevastopol Branch, Sevastopol, Russian Federation
JSC Institute of Geography and Water Security, Almaty, Kazakhstan
Zubov State Oceanographic Institute
JSC Institute of Geography and Water Security
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