波希米亚森林地区的水文干旱

IF 0.9 4区社会学 Q3 GEOGRAPHY

Geografie-Sbornik CGS Pub Date : 2020-07-09 DOI:10.37040/geografie2020125030271

Vít Skála, B. Janský

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引用次数: 0

摘要

波希米亚森林地区的水文干旱-本研究的目的是选择和应用适当的方法来评估波希米亚山区的水文干旱。对各个水文剖面的结果进行了相互比较，然后对山外地区的集水区进行了一般比较。使用阈值和Gumbel(1963)方法，并计算稀缺量。通过这种方式，定义了干旱天数和干旱期，编制了季节性图表，并使用Mann-Kendall和Hirsch-Slack趋势测试评估了趋势。结果表明，山地迎风面和背风面水文干旱的季节性差异显著。干燥日数最多的地区分别是秋季迎风剖面和冬季背风剖面。冬季干旱的数量随着海拔的降低而减少。在观测期内，所有剖面的水文干旱发生率均显著减少。

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Hydrological drought in the Bohemian Forest region

Hydrological drought in the Bohemian Forest region – The aim of this study was to select and apply appropriate methods for evaluating hydrological drought in the mountainous Bohemian Forest region. The results from individual hydrological profiles were compared with each other, followed by a general comparison of catchment areas in the extramontane region. The threshold and Gumbel (1963) methods, and a calculation of scarcity volumes, were used. In this way, dry days and episodes were defined, seasonal charts were compiled, and trends were assessed using the Mann–Kendall and Hirsch–Slack trend tests. It was found that the seasonality of the hydrological droughts on the windward and leeward sides of the mountains differed significantly. The maximum number of dry days was found to occur in the windward profiles in autumn and in the leeward profiles in winter. The amount of winter drought decreases with decreasing altitude. Significant decreases in the occurrence of hydrological drought were found in all profiles for the observed period.

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来源期刊

Geografie-Sbornik CGS Social Sciences-Geography, Planning and Development

CiteScore

2.20

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0.00%

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