Determining factors for changes in the ice regime of the Caspian Sea
Naurozbayeva Z. Baubekova A. Kvasha A. Lobanov V. Kløve B. Torabi Haghighi A.
2025Routledge
International Journal of Water Resources Development
2025#41Issue 19 - 30 pp.
This article provides an analysis of the factors driving long-term change in the characteristics of the ice regime of the Northern Caspian Sea using satellite and in situ observation. It assesses the climatic shifts, comparing the linear trend and step change models. We link the stepwise shift in temperatures in the 1980s with the changes in the forms of atmospheric circulation. The decrease in the sum of negative temperatures impacts the length and intensity of winters with the 18–27-day reduction in the freeze period, leading to a shorter period of ice cover and reduced ice thickness by 20–28 cm.
atmospheric circulation , climate change , ice regime , North Caspian Sea , thermal regime
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Caspian Sea Hydrometeorological Research Department, Republican State-Owned Enterprise ‘Kazhydromet’, Almaty, Kazakhstan
Department of Geography and Environmental Sciences, Al-Farabi Kazakh National University Almaty, Almaty, Kazakhstan
Water, Energy and Environmental Engineering, Faculty of Technology, University of Oulu, Oulu, Finland
Department of Environmental Sciences and Policy, Central European University, Budapest, Hungary
Department of Meteorology, Russian State Hydrometeorological University, St Petersburg, Russian Federation
Caspian Sea Hydrometeorological Research Department
Department of Geography and Environmental Sciences
Water
Department of Environmental Sciences and Policy
Department of Meteorology
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