Drought propagation in karst and non-karst regions in Southwest China compared on a daily scale

Autor: Peng Shi, Han Tang, Simin Qu, Lanlan Zhao, Qiongfang Li
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Hydrology: Regional Studies, Vol 51, Iss , Pp 101628- (2024)
Druh dokumentu: article
ISSN: 2214-5818
DOI: 10.1016/j.ejrh.2023.101628
Popis: Study region: Three subbasins with different karstification degrees in Southwest China. Study focus: To investigate the mechanism of karst influence on drought propagation, this paper used a daily-scale threshold level method to identify drought events and comparatively analyzed the differences in drought propagation characteristics among three subbasins. New hydrological insights for the region: (i) The karstification degree is appreciably correlated with the drought propagation from meteorological to hydrological droughts, and the stronger the karstification, the closer the relationship. (ii) Daily-scale drought events performed better in identifying drought characteristics; of all drought events, 55% were meteorological and 24% were hydrological and lasted
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