статья в журнале

En

Physical Oceanography
eSSN:1573-160

2023

BIRKQZ

Purpose. The aim of the study is to analyze the river runoff impact on density stratification in the Chukchi and Beaufort seas, and to identify the areas where the response to seasonal fluctuations in the river runoff volumes is the most pronounced. Methods and Results. Based on the ECMWF ORAP5 reanalysis data on the monthly mean values of temperature and salinity for May - September of each year, the water density in the Chukchi and Beaufort seas was calculated. To study the river runoff impact on the density stratification of sea water, applied were the calculated maximum monthly average values of the Väisälä - Brunt frequency over depth at each grid node, and the monthly average water discharges in the closing gates of the Kolyma, Yukon and Mackenzie rivers for the period 1979-2013. The results of statistical analysis showed that density stratification of the Chukchi and Beaufort seas was most strongly affected by the Mackenzie and Yukon river runoffs for a previous month and also by the Kolyma river runoff for 3 and 6 previous months...

Chukchi Sea, Beaufort Sea, water density stratification, buoyancy frequency, river runoff, rivers Mackenzie, Yukon and Kolyma

2023-12-27 11:31:05