Regional effects of synoptic situations on soil drought in the Czech Republic

作者: Jan Řehoř , Rudolf Brázdil , Miroslav Trnka , Ladislava Řezníčková , Jan Balek

DOI: 10.1007/S00704-020-03275-4

关键词: CycloneContext (language use)Physical geographyGeographyHydrometeorologyTrough (meteorology)PrecipitationPeriod (geology)CzechPlant development

摘要: Soil drought has an important influence on plant development. The SoilClim model was used to investigate episodes of soil at the 0–100-cm profile during 1961–2017 period for four selected regions Czech Republic (North-western Bohemia, Southern North-eastern Moravia, and Moravia). It emerged that frequency significantly increases in summer half-year (SHY) exhibits insignificant trends winter (WHY). dynamic climatology is based herein upon synoptic situations as classified by Hydrometeorological Institute, terms which changes occurrence precipitation intensity individual were studied. Drought are generally related decreases precipitation-rich their intensity. This particularly true C (central cyclone over central Europe), B (trough Bp (travelling trough). Situations Bp, together with south-west cyclonic SWc1–3, appeared most relevant regional differences SHY studied, while western (Wc Wcs) WHY. Regional clearly marked between Bohemian Moravian regions, especially SHY. Discussion results obtained concentrates uncertainty data, WHY, effects situations, broader context droughts.

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