SPATIAL AND TEMPORAL VARIABILITY OF THE SENSIBLE HEAT FLUX ON THE SURFACE OF THE NORTHWESTERN PACIFIC OCEAN AND THE FAR EASTERN SEAS ACCORDING TO THE DATA OF THE ERA5 REANALYSIS

An array of ERA5 reanalysis data on the sensible heat flux on the surface of the Northwestern Pacific Ocean and the Far Eastern seas for 1998–2022 is analyzed. It is shown that the positive values of this flux (directed from the atmosphere to the ocean) were observed in spring and summer, the maximum values in May were about 2 MJ/m2 in the southwestern part of the Sea of Okhotsk, and on the ocean shelf of the southern Kuril Islands and Hokkaido Island. Negative values (backflow) are observed in autumn and winter, they reach –14 MJ/m2 in December. The imbalance between these fluxes is covered by the advection of warm waters by the Tsushima and Kuroshio Currents. The variations of the parameter are dominated by the annual course, interannual variations are expressed in its modulation with periods of about 3 and 11 years, unidirectional trends are weak.