Analysis of the dynamics of the main greenhouse gases content in the atmosphere and related climate variables in certain territories is one of the approaches to solving modern environmental and climatic problems. The purpose of the paper is to study the dynamics of some environment-forming variables in the natural-technogenic geosystem of an oil and gas field in the Ural part of the Volga-Ural steppe region. In the study area, zone 1 with a natural-technogenic geosystem and zone 2 with the original landscape are identified. The change in the content of two main greenhouse gases — carbon dioxide and methane — in the atmosphere of zones 1 and 2, fluctuations in temperature and albedo of the landscape surface, and moisture content in vegetation were analyzed. Satellite images and freely available products were used as source materials: OCO-2 (2015-2021), Sentinel-5P (2018-2024), Landsat-8 (2013-2022). A slight increase in the average concentration of carbon dioxide in the atmosphere of zone 1 compared to zone 2, a lower content of methane in the atmosphere of zone 1 compared to zone 2, a stable increase in the concentration of both greenhouse gases over the study area, as well as changes in temperature, humidity and radiation balances in technogenic transformed landscapes of zone 1 (an increase in surface temperature with a decrease in moisture content in the vegetation cover and the reflectivity of landscapes) were discovered. Thus, recent satellite images make it possible to reveal the dynamics of a number of environmental variables, including greenhouse gases, in areas of research interest.

Ksenia V. Myachina
Doctor of Geographical Sciences, Leading Researcher
Head of the Department of natural and technogenic geosystems
Steppe Institute of the Ural Branch of the RAS
11, Pionerskaya str., Orenburg, 460000, Russia
e-mail: mavicsen@list.ru
ORCID: 0000-0001-5190-1421
Scopus Author ID: 57217686210
ResearcherID: К-5099-2018
SPIN-код: 4734-1819
AuthorID: 155565

Anton N. Shchavelev
Junior Researcher
Steppe Institute of the Ural Branch of the RAS
11, Pionerskaya str., Orenburg, 460000, Russia
e-mail: ditmark12rus@gmail.com
ORCID: 0000-0002-7249-2193
SPIN-код: 9772-5310
AuthorID: 1144156

Roman V. Ryakhov
Researcher
Steppe Institute of the Ural Branch of the RAS
11, Pionerskaya str., Orenburg, 460000, Russia
e-mail: remus.rv@gmail.com
ORCID: 0000-0002-4762-3286
Scopus Author ID: 57223622892
ResearcherID: J-8188-2018
SPIN-код: 4622-0083
AuthorID: 835030

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