Abstract
The paper studies the connection between the precipitation regime over the northern Baikal mountain region during the warm season (April–October) and atmospheric macrocirculation processes, the results are presented. Based on the data of ten weather stations, spatiotemporal heterogeneities in the precipitation regime are revealed for the period of 2000–2018. The long-term (since the middle of the 1960s) trends in total precipitation are evaluated. According to the analysis of HYSPLIT five-day backward trajectories (for days with precipitation), the main directions of moisture transport to the study area are identified, and the trajectories are typed for each month. Three groups of atmotpheric macroprocesses which induce precipttation are identified, and the contribution of each group to total precipitation is estimated. The spatial distinction between different parts of the study area in the precipitation regime and predominant moisture sources is found.
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Russian Text © The Author(s), 2019, published in Meteorologiya i Gidrologiya, 2019, No. 10, pp. 87-98.
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The research was supported by the Russian Foundation for Basic Research (grant 19-05-00668) and by the research projects 0347-2016-003 and 0345-2019-0006.
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Osipova, O.P., Osipov, E.Y. Atmospheric Circulation Processes and Precipitation Regime in the Northern Part of the Baikal Mountain Region. Russ. Meteorol. Hydrol. 44, 695–703 (2019). https://doi.org/10.3103/S106837391910008X
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DOI: https://doi.org/10.3103/S106837391910008X