Abstract

A study of water circulation in the northwestern part of the Bering Sea using AVISO satellite data on velocities of geostrophic currents from 2002 to 2017 showed a significantly variable dynamics of the surface waters. In January, the main current of the surface waters is directed toward the southwest along the continental slope in contrast to anticyclone water circulation in shelf. In July, the surface water current is oriented to the northeast along the continental slope, whereas cyclonic water circulation is dominant at shelf. The formation of winter mesoscale anticyclones is caused by a gain of low-temperature and low-saline shelf waters. The temporal variability of direction and velocity of summer currents is related to coastal upwelling, which is caused by the southern winds over the western part of the Bering Sea. The presence of upwelling and eddies should be considered one of the factors leading to the formation of an area with high chlorophyll concentration close to the coast during summer.

中文翻译：

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根据卫星数据，白令海西北部的水循环

摘要

利用AVISO卫星数据对白令海西北部2002年至2017年的地转流速度进行的水循环研究表明，地表水动力学变化显着。一月份，与陆架上的反气旋水循环相反，地表水的主要水流沿着大陆坡向西南方向流动。在7月，地表水流沿大陆坡向东北方向移动，而旋风水循环在陆架上占主导地位。冬季中尺度反气旋的形成是由于低温低盐架子水的增加。夏季水流的方向和速度的时间变化与沿海上升有关，这是由白令海西部的南风引起的。