статья в журнале

En

Izvestiya, Atmospheric and Oceanic Physics

ISSN:0001-4338
eSSN:1555-628

2024

10.1134/S0001433824700440

CXPOQL

The response of the Black Sea upper layer and, in particular, of the cold intermediate layer (CIL) to intense wind forcing during cold air intrusions (CAIs) in winter is considered. Using data of the ERA5 atmospheric reanalysis and Copernicus marine reanalysis, joint distributions of surface wind speed and water temperature differences at different depths for the period of 2000–2020 have been obtained. It is shown that the time scale of the sea response to such extreme phenomena is about two days and that the CAI influence extends to rather great depths, down to 60–70 m. Using the coupled mesoscale sea–atmosphere model, the cooling mechanisms in the sea upper layer during the CAI case in January 23–25, 2010, are investigated. Two numerical experiments with suppressed air–sea interaction have been performed. In the first experiment, sensible and latent heat fluxes from the sea surface into the atmosphere were turned off; in the second experiment, wind shear stress at the sea surface was turned off...

COLD AIR INTRUSIONS, EXTREME COOLING, COUPLED SEA-ATMOSPHERE MODELLING, NOW, BLACK SEA, COPERNICUS REANALYSIS

2025-01-07 22:55:44