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Frequency of Meteorological Factors of Vessel Icing in the Barents Sea and Ice Accretion on its Coast in a Changing Climateстатья
- Авторы: Lavrenteva A.I., Leonov I.I., Sokolikhina N.N.
- Журнал: Physical Oceanography
- Том: 31
- Номер: 5
- Год издания: 2024
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 609
- Последняя страница: 625
- Оригинальные версии: Повторяемость метеорологических факторов обледенения судов в Баренцевом море и гололедно-изморозевых отложений на его побережье в условиях изменяющегося климата
- Аннотация: Purpose. The work is purposed at analyzing the regional characteristics of ice accretion frequency and meteorological conditions of vessel icing in the Barents Sea region as well as long-term trends of these characteristics observed in the context of modern climate change.Methods and Results. The results of studying the frequency of ice accretions are obtained by statistical processing of standard observations at a network of weather stations located near the coast and on the islands of the Barents Sea for the period of 1966–2022. The frequency of vessel icing is estimated using the D. Overland method which is based on calculating the spray icing intensity involving the data on wind speed, air temperature, sea water temperature and its freezing point. The ERA5 reanalysis for 1979–2022 is used as the input data for the D. Overland method. The average annual number of days with the atmospheric phenomena during which dangerous ice accretions of different types can be formed, is obtained based on the observation data. The time trends in the average annual number of days with such phenomena are quantitatively evaluated. The reanalysis data processing has permitted to obtain the average annual number of days with vessel icing for the Barents Sea area. The regions of the highest frequency of extreme vessel icing are identified. The time trends in frequency of the changes in a number of days with vessel icing of different intensity are considered for the period of 1979–2022.Conclusions. On the Barents Sea coast, about three days with dangerous ice accretions of different types are observed on average annually. From 1966 to 2022, the number of such phenomena decreased on average by 0.58 days every 10 years. The highest frequency of marine icing is revealed in the eastern part of the Barents Sea and near the western coast of Novaya Zemlya where the average number of days with extreme icing exceeds 30 days per year. In course of the period of 1979–2022, both a decrease in the average annual number of days with icing up to three ones per year (south of 75°N and west of 50°E) and their increase up to three days per year (in the northern and eastern parts of the Barents Sea) were observed.
- Добавил в систему: Леонов Игорь Иванович