Abstract
Climatic conditions and the solar and circulation features in the Lake Baikal basin are analyzed. The relationship between the heat balance and surface temperature of slopes is shown, taking into account each features’ physical state. The dependence of the heat balance values and the underlying surface temperature were revealed. The quantitative material allowed us to reveal regional patterns of geomorphological regimes, seasonal rhythm, and the dynamics of processes. In Cisbaikalia, within the denudation cycle, semi-humid states under water erosion and aeolian processes of moderate intensity predominate. The semi-arid state manifests itself under decreasing humidification. In these years, the probability of extreme manifestations of aeolian processes is high. The humid states occur in 1% of cases, primarily in extremely wet years, when fluvial processes are dramatically activated. In Cisbaikalia, climate warming and an increase in mean annual temperature have been observed in recent years. Depending on the moisture amplitude and heat availability, the intensity and direction of water erosion and aeolian processes is changing now. The dynamics of relief-forming processes cause an increase in loose substance in the lake and the exacerbation of the ecological situation.
Highlights
Climate is one of the most important factors for relief formation
In the heat balance of the territory, a great importance is given to the entering of direct solar radiation, which is of predominant importance
The coupled analysis of climatic features of the southwestern Cisbaikalia and exomorphogenesis showed that exogenous, relief-forming processes are closely related to processes similar in dynamism in the air and water systems
Summary
Climate is one of the most important factors for relief formation. Geomorphological systems coincide with climatic and water systems [1,2]. The relationship between climate and relief is diverse [3]. Climate considerably determines weathering processes, denudation features, and the structure and intensity of existing exogenous processes. Climate controls bedrock weathering and lithostreams along the slopes. It is of great interest to analyze the development of geomorphological systems under climate change [4]. The increased research on this issue is reflected in the prevention and prediction of dangerous and catastrophic natural (climatic and geomorphological) situations. This issue has been discussed at the 9th International
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