Journal of Siberian Federal University. Engineering & Technologies / Dynamics of Sea and Land Surface Temperatures in the Tropical Belt Based on Satellite Data

Full text (.pdf)
Issue
Journal of Siberian Federal University. Engineering & Technologies. 2025 18 (5)
Authors
Vysotskaya, Galina S.; Pisman, Tamara I.; Botvich, Irina Yu.; Shevyrnogov, Anatoly P.
Contact information
Vysotskaya, Galina S.: Institute of Biophysics SB RAS Krasnoyarsk, Russian Federation; Pisman, Tamara I.: Institute of Biophysics SB RAS Krasnoyarsk, Russian Federation; Botvich, Irina Yu.: Institute of Biophysics SB RAS Krasnoyarsk, Russian Federation; ; Shevyrnogov, Anatoly P. : Institute of Biophysics SB RAS Krasnoyarsk, Russian Federation
Keywords
continents; oceans; tropics; land surface temperature (LST); sea surface temperature (SST); satellite data; trends; MODIS-Aqua; Terra-MODIS; MODIS‑Aqua; Terra‑MODIS
Abstract

The study analyzes monthly data of the MODIS-Aqua satellite scanner on the sea surface temperature (SST) for 2002–2021 combined with the Terra-MODIS data on the land surface temperature (LST) for a period between February 2001 and January 2024. Land surface of the continents (America, Africa, and Asia) and ocean (Pacific, Atlantic, and Indian) surfaces in the tropical belt (30° N‑30° S) have been studied. Variations in the proportions of the areas with positive LST trends relative to the total land surface area are cyclical and occur synchronously with the similar SST variations. Each cycle lasts about 5–6 years. Comparison of SST and LST shows that the proportion of areas with the positive SST trends is insignificantly higher than the proportion of the areas with the positive LST trends while the proportion of areas with the negative SST trends is considerably higher than the proportion of the areas with the negative LST trends. For the continents examined in the current study (America, Asia, and Africa), the proportions of the areas with the positive LST trends relative to the total land surface area of these continents change synchronously. The proportions of areas with negative LST trends relative to the total land surface area of these continents are considerably less correlated. The global response of SST and LST is caused by the abrupt change of the sign of the Oceanic Nino Index (ONI) trend from negative to positive

Pages
634–643
EDN
LFMYNE
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/156682

Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).