ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2022, Vol. 19, No. 2, pp. 130-141

Monitoring of lands affected by desertification in the Republic of Kalmykia

T.B. Titkova 1 , A.N. Zolotokrylin 1 
1 Institute of Geography RAS, Moscow, Russia
Accepted: 18.04.2022
DOI: 10.21046/2070-7401-2022-19-2-130-141
A monitoring of lands with distinct desert conditions in the Republic of Kalmykia during the summer period from 2000 to 2021 was conducted. The analysis was produced on the basis of the connection between spectral values of albedo and surface temperature. The suggested approach allowed to evaluate land area affected by seasonal desertification, varying in length and intensity. The localization of districts affected by desertification can change from year to year, showing that it results from both climate and anthropogenic factors. The intensity of desertification caused by droughts tends to increase in the Republic of Kalmykia, and the disastrous drought of summer 2020 demonstrated that, spreading to vast areas and leading to millions in damages. The obtained results were confirmed, inter alia, by changes of minimal values of NDVI and proved the fragility of grassland in the Republic of Kalmykia to modern climate changes that requires development and implementation of adaptation measures.
Keywords: albedo, surface temperature, NDVI, drought, desertification, MODIS, the Republic of Kalmykia
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