Abstract
The ice regime of the Sea of Azov over the period of 20th and 21nd centuries was investigated using the author's GIS «The ice regime of the Southern Seas of the Russia». The long-term dynamics of the ice cover, duration of the ice stay as well as beginning and end of the ice period were considered. It has been found that for the period of 1950–2015 the average annual value of the Azov Sea ice cover area is 33%, while the average area of the fast ice is 6.3% of the total area of the sea. Value of duration of the ice cover stay on the sea surface has been refined, and this value is 115 days near the hydro-meteorological station (HMS) Taganrog and 63 days near the HMS Kerch. The typification of winters according to the degree of severity was performed on the basis of data from three coastal meteorological stations: Taganrog, Genichesk, and Kerch. Winters of moderate type were shown to be prevailing during the entire analyzed period. Totally, 15 severe, 70 moderate and 40 mild winters were isolated for the period 1883-2015, while for 1950–2015 the statistics was the following: 9 severe, 43 moderate, and 14 mild winters in Taganrog, and 10 severe, 40 moderate, and 16 mild winters in Kerch.
Highlights
The typification of winters according to the degree of severity was performed on the basis
40 mild winters were isolated for the period 1883-2015
Proc. of the USSR Hydrometeorological Center. 1983, 256: 55–60. [In Russian]
Summary
The ice regime of the Sea of Azov over the period of 20th and 21nd centuries was investigated using the author's GIS «The ice regime of the Southern Seas of the Russia». 6. Классификация зимних периодов по ледовым характеристикам для Азовского моря за период с 1950 по 2015 г.: а – сумма среднемесячных температур воздуха (°С) за зимний период; б – минимальная температура воздуха (°С), отме ченная в зимний сезон (декабрь–март); в – даты минимальной температуры воздуха, отмеченной за зимний сезон (де кабрь–март); г – продолжительность ледового периода, даты; д – класс зимнего периода; 1 – линия тренда; 2 – макси мальные и минимальные значения параметров; 3 – суровый, умеренный, мягкий тип зимы Fig. 6. Разработан новых подход и выполнена клас сификация зимних периодов на основе ряда факторов: типов зим для прибрежных ГМС (су ровая, умеренная, мягкая); значений и дат ми нимальной температуры воздуха для прибреж ных ГМС за зимний сезон; средних значений ледовитости Азовского моря за сезон, %; нача ла, конца (даты) и продолжительности ледостава (дни). Исследование выполнено при финансовой поддержке РФФИ в рамках научно го проекта No 16-35-00318 мол_а и при финансо вой поддержке РФФИ и РГО в рамках научного проекта No 17-05-41190 РГО_а
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