статья в журнале

Ru

Sovremennye Problemy Distantsionnogo Zondirovaniya Zemli iz Kosmosa

ISSN:20707401

2024

10.21046/2070-7401-2024-21-6-383-388

The influence of an intense atmospheric cyclone (September 30 – October 1, 2024) over the Black Sea on changes in the characteristics of surface layer is described. Satellite data from the AVHRR (Advanced Very High Resolution Radiometer), MODIS (Moderate Resolution Imaging Spectroradiometer), TIRS (Thermal Infrared Sensor), OLCI (Ocean and Land Colour Instrument), SLSTR (Sea and Land Surface Temperature Radiometer) scanners, as well as wind speed data from the SKIRON model and the ASCAT (Advanced SCATterometer) scatterometer were used for a comprehensive study. The satellite data recorded a decrease in surface temperature by 9–10 °C after the cyclone passage. ARGO float data for September 28 and October 8 showed a deepening of the thermocline upper boundary by 5 m, as well as a change in the temperature profile to depths of 100 m. Salinity profiles also changed significantly down to depths of 150 m. Mesoscale dynamics may be a possible reason of such changes. A cyclonic eddies chain with characteristic sizes of up to 10 km was formed on the periphery of the cold water area. In the cold water region, an increase in chlorophyll a was observed according to satellite data from the Sentinel-3B OLCI scanner from 0.6 to 2.3 mg/m3

abnormal temperature change, atmospheric cyclone, Black Sea, multispectral satellite data

2025-01-15 15:52:18