Абстракт
Purpose. The aim of the work is to clarify the spatial structure of the climatic dynamic fronts geostrophic current jets) and to estimate the relationship between their position and that of the large- ( scale temperature fronts on the surface of the Scotia Sea and the adjacent water areas in the southwestern part of the Atlantic sector of Antarctica. Methods and Results. The daily averaged data arrays of the CMEMS (1993-2017) and NOAA OI SST (1982-2017) reanalysis at the regular 0.25° grid were used. The CMEMS reanalysis contains the sea surface geostrophic velocity values, the NOAA OI SST reanalysis - the sea surface temperature ones which were reduced to the climatic form through their averaging for each month of the corresponding periods. Position of the current jets and the temperature fronts was determined using the maximums of the geostrophic velocity components and the extremes of the temperature horizontal gradients. The updated scheme of the average long-term position of dynamic fronts was constructed...
Ключевые слова
SCOTIA SEA, DRAKE PASSAGE, WEDDELL SEA, SEA SURFACE TEMPERATURE, SATELLITE ALTIMETRY, TEMPERATURE HORIZONTAL GRADIENTS, GEOSTROPHIC CURRENTS, BOTTOM TOPOGRAPHY