Spatio-temporal characteristics and propagation relationship of meteorological drought and hydrological drought in the Yellow River Basin

被引：0

作者：

Zheng L. ^{[1
]}

Liu Y. ^{[1
]}

Ren L. ^{[1
]}

Zhu Y. ^{[2
]}

Yin H. ^{[3
]}

Yuan F. ^{[1
]}

Zhang L. ^{[1
]}

机构：

[1] College of Hydrology and Water Resources, Hohai University, Nanjing

[2] College of Hydrology and Water Resources, Nanjing University of Information Science & Technology, Nanjing

[3] Institute of Water Resources for Pastoral Area, MWR, Hohhot

来源：

Water Resources Protection | 2022年 / 38卷 / 03期

关键词：

drought propagation; hydrological drought; meteorological drought; spatio-temporal characteristics; Yellow River Basin;

D O I：

10.3880/j.issn.1004-6933.2022.03.012

中图分类号：

学科分类号：

摘要：

Based on the standardized precipitation cvapotranspiration index (SPEI) and standardized runoff index (SRI), the differences between spatio-temporal distributions of meteorological drought and hydrological drought in the Yellow River Basin were compared, and their correlation was analyzed on time scale. Several typical drought events were selected to explore the propagation relationship between the two types of droughts. The results show that the two types of droughts have similar drought trend and frequency in space, but there are significant differences in the source area of the Yellow River and the south-central part of the Yellow River (the Wei he River Basin)- The drought duration is prolonged every decade, especially the hydrological drought duration. In terms of time scale correspondence, SPEI and SRI are basically consistent in most regions, while there are significant differences in the source area of the Yellow River and the Weihe River Basin, especially on a short time scale. A meteorological drought does not correspond to a hydrological drought one by one. Affected by time lag effect and abnormal meteorological fluctuation, multiple short-term meteorological droughts may jointly trigger a long-term continuous hydrological drought or multiple short-term hydrological droughts. A long-term continuous meteorological drought may cause multiple short-term hydrological droughts due to intensity attenuation. © 2022, Editorial Board of Water Resources Protection. All rights reserved.

引用

页码：87 / 95

页数：8

共 26 条

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