Abstract
Features of the sea ice cover variability in the Tatar Strait (Japan Sea) in connection with the regional atmosphere circulation
Highlights
Variations of the sea ice cover in the Tatar Strait (Japan Sea) in 1951–2014 are analyzed in connection with changes of surface atmospheric pressure, geopotential height H500, and air temperature over eastern Asia and the North-West Pacific
Dominant periodicities are revealed for the whole time series of ice cover and its parts (1951–1982 and 1983–2014): the 5-year cycle dominated in January-March for the former period, and the 2-year cycle — for the latter period, whereas long-term cycles (7–10 years) were weaker
The ice cover variation correlated with changes of the Siberian High strength in the 1951–1982 but mostly with atmosphere processes over south Asia and the Okhotsk Sea in the 1983–2014, that’s why the 2-year cycle was stronger in the latter case
Summary
Анализируется изменчивость ледовитости Татарского пролива (Японское море) за период 1951–2014 гг. Features of spatial distribution of the ice, water dynamics and thermal regime are considered in detail for the southern Tatar Strait in March 2014 and 2015 using satellite data. Температура и соленость воды в прибрежных районах северо-западной части Японского моря, основное влияние на которые оказывает Приморское течение, зависят в конце зимы — начале весны от ледовых условий в Татарском проливе (Park et al, 2006). Большая межгодовая изменчивость ледовых условий в Татарском проливе значительно осложняет их прогноз как в краткосрочном, так и в долгосрочном аспекте. Мониторинг ледовых условий в Татарском проливе позволил выявить аномалии в межгодовом ходе ледовитости. 1. Поле льда в Татарском проливе на цветосинтезированных изображениях, построенных по спутниковым данным MODIS/Terra 17.03.2014 г. Поле льда в Татарском проливе на цветосинтезированных изображениях, построенных по спутниковым данным MODIS/Terra 17.03.2014 г. (а) и MODIS/Aqua 14.03.2015 г. (б)
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