hydrophysicsФундаментальная и прикладная гидрофизикаFundamental and Applied Hydrophysics2073-66732782-5221St. Petersburg Research Center of the Russian Academy of Scienceshydrophysics-1013Research ArticleГИДРОФИЗИЧЕСКИЕ И БИОГЕОХИМИЧЕСКИЕ ПОЛЯ И ПРОЦЕССЫHYDROPHYSICAL AND BIOGEOCHEMICAL FIELDS AND PROCESSESO пространственно-временной изменчивости полей волнения Финского заливаSpatio-temporal variations of wave fields in the Gulf of FinlandСоомереТ.SoomereT.

Таллин

Зайцева-ПярнастеИ.Zaitseva-PärnasteI.

Таллин

РяяметА.RäämetA.

Таллин

КуреннойД.KurennoyD.

Санкт-Петербург

D.Kurennoy@gmail.comИнститут кибернетики при таллинском технологическом университетеEstoniaВсероссийский научно-исследовательский геологический институт им. А.П. КарпинскогоRussian Federation2010271120220490101Copyright © Соомере Т., Зайцева-Пярнасте И., Ряямет А., Куренной Д., 20222022Соомере Т., Зайцева-Пярнасте И., Ряямет А., Куренной Д.Soomere T., Zaitseva-Pärnaste I., Räämet A., Kurennoy D.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://hydrophysics.spbrc.ru/jour/article/view/1013

Проведен анализ пространственных и долговременных изменений своиств ветровых волн в Финском заливе на основе визуальных наблюдений, проводившихся с 1954 г. на двух измерительных постах, расположенных на южном побережье залива, а также с использованием модельных расчетов ветровых полей высокого разрешения для всего Балтийского моря. С 1970 г. средние высоты волн изменились незначительно, в то время как экстремальные значения существенно возросли в северной и северо-восточной частях залива. Вероятной причиной этих изменений может служить увеличение повторяемости юго-западных ветров, наблюдаемое в последние 40 лет.

We analyse the main properties of wave fields in the Gulf of Finland and their spatial and long-term variations based on visual wave observations performed since 1954 at two locations on the southern coast of the gulf and high-resolution simulations of wave fields for the entire Baltic Sea for 1970-2007. Shown is that both longterm average and maximum wave heights in the gulf are about a half for those in the Baltic Proper. The average wave heights have insignificantly changed in the gulf since the 1970s whereas the extreme wave heights have considerably increased in the northern and in the northeastern sections of the gulf. A probable reason for the changes is the enhancement of south-western winds over the last 40 years.

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The authors declare that there are no conflicts of interest present.