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Article

Propagation from Meteorological to Hydrological Drought and Its Influencing Factors in the Huaihe River Basin

1
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Sciences, Hohai University, Nanjing 210098, China
2
Research Center on Flood & Drought Disaster Reduction, China Institute of Water Resources and Hydropower Research, Beijing 100000, China
3
Bureau of Hydrology and Water Resources of Henan Province, Zhengzhou 450000, China
4
School of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing 210044, China
*
Author to whom correspondence should be addressed.
Academic Editor: Athanasios Loukas
Water 2021, 13(14), 1985; https://doi.org/10.3390/w13141985
Received: 28 May 2021 / Revised: 8 July 2021 / Accepted: 14 July 2021 / Published: 20 July 2021
(This article belongs to the Special Issue Human and Climate Impacts on Drought Dynamics and Vulnerability)
Understanding the propagation from meteorological to hydrological drought is crucial for hydrological drought monitoring and forecasting. In this study, daily precipitation and streamflow data of 16 sub-catchments in the Huaihe River Basin from 1980 to 2014 are used to establish a framework to quantitatively reveal the propagation relationship between meteorological and hydrological drought and explore the impact of climate, catchment properties, and human activities on drought propagation. The propagation from meteorological to hydrological drought is divided into three types. Type-1 propagation indicates that one or several meteorological droughts trigger a hydrological drought. The occurrence probability of Type-1 calculated by the conditional probability on SPI and SRI series varies from 0.25 to 0.48 among all catchments. Features of Type-1 propagation can be concluded as lengthening of duration, amplification of severity, lag of onset time, and reduction of speed. Type-2 propagation indicates that a meteorological drought occurs but no hydrological drought occurs, which accounts for 63–77% of the total meteorological drought events in all catchments. Type-3 indicates that a hydrological drought occurs without a proceeding meteorological drought, which is caused mostly by human activities. The occurrence probability of Type-3 ranges from 0.31 to 0.58. Climate factors have significant effects on hydrological drought duration, while catchment properties represented by topographic index and base flow index significantly relate to hydrological drought severity, propagation time, and occurrence probability of Type-1 propagation. The ratio of crop land reflecting irrigation on hydrological drought is far less than that of topographic index, denoting that the impact of irrigation on hydrological drought is less than that of catchment properties. Reservoirs have significant effects on alleviating the duration and severity of extreme hydrological droughts, but little effects on the average duration and severity of hydrological droughts. View Full-Text
Keywords: hydrological drought; propagation probability; catchment properties hydrological drought; propagation probability; catchment properties
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MDPI and ACS Style

Wang, J.; Wang, W.; Cheng, H.; Wang, H.; Zhu, Y. Propagation from Meteorological to Hydrological Drought and Its Influencing Factors in the Huaihe River Basin. Water 2021, 13, 1985. https://doi.org/10.3390/w13141985

AMA Style

Wang J, Wang W, Cheng H, Wang H, Zhu Y. Propagation from Meteorological to Hydrological Drought and Its Influencing Factors in the Huaihe River Basin. Water. 2021; 13(14):1985. https://doi.org/10.3390/w13141985

Chicago/Turabian Style

Wang, Jingshu, Wen Wang, Hui Cheng, Hongjie Wang, and Ye Zhu. 2021. "Propagation from Meteorological to Hydrological Drought and Its Influencing Factors in the Huaihe River Basin" Water 13, no. 14: 1985. https://doi.org/10.3390/w13141985

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