статья в журнале

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Ecological Safety of Coastal and Shelf Zones of Sea

ISSN:24135577

2024

QXGFKD

The paper studies the variability of the temperature field at the sea surface on different time scales using hydrological measurements made off the coast of Crimea during 2022-2023 cruises of R/V Professor Vodyanitsky and Copernicus satellite data. It is shown that the intra-annual temperature amplitude according to in situ measurements in 2022 was 18.2 °C, where-as in 2023, it was 16.6 °C. The maximum ranges of spatial temperature changes at the poly-gon (up to 4-5 °C) were observed during periods of intense heating and cooling of surface waters in April-May and December 2022 and October 2023. On the synoptic scale, the periods of temperature increases (decreases) corresponded to those of local wind decreases (increases) with a delay in the temperature response to changes in the wind speed by 10-12 hours. Satellite data showed differences in the temperature intra-annual cycle and the level of its synoptic variability in 2022 and 2023 from climate norms. In 2022, the min-imum and maximum temperatures in the intra-annual cycle were observed two weeks later than according to climate data. In 2023, the time of occurrence of the minimum corresponded to the climate one, and the maximum was observed two weeks earlier than it had been expected from the climate data. The main maximum in the level of synoptic temperature variability was observed in November 2022 and in December 2023, but not in May as it had been expected from the climate data. It is shown that from 2022 to 2023, predomi-nantly positive average monthly temperature anomalies against the climate norms were observed. This reflects the upward tendency in temperature over the past two years.

Black Sea, in situ measurements, satellite measurements, sea surface temperature, spatiotemporal variability

2025-02-19 11:32:32