Long-Term Variations in the Vertical Thermohaline Structure in Deep-Water Zones of the Caspian Sea |
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Authors: | Tuzhilkin V S Kosarev A N |
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Institution: | (1) State Oceanographic Institute, Kropotkinskii per. 6, Moscow, 119034, Russia;(2) Moscow State University, Leninskie Gory, Moscow, 119992, Russia |
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Abstract: | Long-term variability in water temperature and salinity in August has been determined for deep-water segments of standard profiles in the Central and Southern Caspian Sea based on data of on-board observations carried out in 1956–2000. Estimates of parameters of the vertical thermohaline structure of waters were obtained for four time intervals. These estimates have been compared to the variability in the main external factors governing the formation of thermohaline regime. Appreciable long-term variations in the vertical thermohaline structure of waters, caused by a nonperiodic alternation of two main types of hydrological processes in the Caspian Sea are revealed. Qualitative characteristics of these two types are presented. |
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