Water Balance of Belarus and Its Changes due to Global Warming

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
S. A. Lysenko, V. F. Loginov, I. V. Buyakov, Yu. A. Brovka
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Abstract

Estimates of the water balance components (precipitation, evaporation, zonal and meridional advection of moisture) on the territory of Belarus for the cold (October–March) and warm (April–September) seasons have been obtained on the basis of the balance calculations of precipitation recycling and the ERA5 reanalysis data. It has been shown that the precipitation on the territory of Belarus results from westerlies in 77–84% of cases, from southerlies in 14–20% of cases, and from local evaporation in 2–4% of cases. Annual total precipitation exceeds annual evaporation by 18–30% (the maximum excess is observed in the north, and the minimum is registered in the southeast). During the warm seasons, there is a negative water balance in entire Belarus: evaporation exceeds precipitation by 8–23%. Over the period of global warming, the annual difference between precipitation and evaporation has decreased by 12–15%. The water balance for the warm season has decreased to negative values at the beginning of the current century due to the activation of summer warming. An increase in the amplitude of the water balance fluctuations has been revealed for the cold season, which indicates strengthening climate extremity.

白俄罗斯的水资源平衡及其因全球变暖而发生的变化
摘要根据降水循环平衡计算和ERA5再分析数据,对白俄罗斯境内寒季(10月至3月)和暖季(4月至9月)的水平衡成分(降水、蒸发、水分的地带性和经向平流)进行了估计。结果表明,白俄罗斯境内的降水量 77-84%来自西风,14-20%来自南风,2-4%来自本地蒸发。年总降水量比年蒸发量多 18-30%(北部降水量最多,东南部降水量最少)。在温暖的季节,整个白俄罗斯的水量平衡为负:蒸发量比降水量多 8-23%。在全球变暖期间,降水量和蒸发量之间的年差值减少了 12-15%。本世纪初,由于夏季气候变暖,暖季的水平衡已降至负值。寒冷季节的水平衡波动幅度增大,表明气候极端性增强。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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