Изменчивость характеристик полярной фронтальной зоны в северо-западной части Баренцева моря по данным контактных наблюдений с 2017 по 2023 гг.

Приведены результаты океанографических наблюдений, выполненных с борта НИС «Дальние Зеленцы» на разрезе Кольский меридиан в 2017–2023 гг. Основной акцент сделан на оценках характеристик фронтальных разделов в области северной части Полярной фронтальной зоны Баренцева моря в осенний, зимний и весенний периоды. Для оценки аномалий ледовитости использовались данные Мирового центра данных по морскому льду (AARI WDC Sea-Ice). Выполнено сравнение результатов наблюдений в северной части разреза вблизи прикромочной ледовой зоны с характеристиками температуры и солености из глобальных океанологических баз. Для сравнения привлекались продукты MERCATOR PSY4QV3R1, CMEMS GLORYS12v1 и TOPAZ5. На всех разрезах были обнаружены высокоградиентные зоны, выраженные в поле температуры и солености, на разном расстоянии от кромки ледового поля. Было подтверждено, что в западном районе Баренцева моря отмечается устойчивый тренд к сокращению площади ледового покрова последние три десятилетия. Показано, что самый северный из фронтальных разделов Полярной фронтальной зоны Баренцева моря на оси разреза Кольский меридиан находилcя на расстоянии от 48 до 290 км от кромки ледовых полей, градиенты температуры варьировались от 0,10 до 0,20 °C/км, солености — от 0,012 до 0,025 епс/км, ширина фронтальной зоны не превышала 55 км. Наилучшее соответствие результатам измерений отмечено с данными продукта MERCATOR PSY4QV3R1

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