Characteristics of Propagation From Meteorological Drought to Hydrological Drought in the Pearl River Basin

Zhou，Zhaoqiang1,2; Shi，Haiyun1,2; Fu，Qiang3; Ding，Yibo4; Li，Tianxiao3; Wang，Yao1,2; Liu，Suning1,2

2021-02-27

10.1029/2020JD033959

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES   影响因子和分区

2169-897X

2169-8996

Drought events occur more frequently under recent climate change. Generally, meteorological drought is the fuse of hydrological drought; thus, it is important to understand the characteristics of meteorological drought and its propagation to hydrological drought for early warning. Taking the Pearl River Basin (PRB) in China as study area, this study adopted K-means cluster analysis method to divide the PRB into subregions with similar precipitation characteristics. Then, standardized precipitation index and standardized runoff index were used to analyze the characteristics of meteorological drought and hydrological drought, respectively, and the maximum Pearson correlation coefficient was used to determine the drought propagation time (DPT) between these two types of drought. Moreover, the link between meteorological drought and hydrological drought was explored based on continuous wavelet transform and cross wavelet transform. The results revealed that: the PRB has experienced severe meteorological and hydrological droughts since early 2000s, and hydrological drought was more serious than meteorological drought in each of the five subregions in the PRB. The DPTs from meteorological drought to hydrological drought were mainly 2–6 months, and the periodic characteristics of meteorological drought were mainly responsible for those of hydrological drought. Precipitation and runoff could greatly affect the DPT, while the impacts of evapotranspiration and shallow soil moisture on the DPT were not significant. Furthermore, El-Niño Southern Oscillation and Pacific Decadal Oscillation are important factors that affect the DPT from meteorological to hydrological drought in the PRB.

SCI

英语

ESI高被引

第一 ; 通讯

National Natural Science Foundation of China[51909117,51825901] ; Heilongjiang Provincial Science Fund for Distinguished Young Scholars[YQ2020E002] ; "Young Talents" Project of Northeast Agricultural University[18QC28] ; China Postdoctoral Science Foundation[2019M651247]

Meteorology & Atmospheric Sciences

Meteorology & Atmospheric Sciences

WOS:000624348900027

AMER GEOPHYSICAL UNION

GEOSCIENCES

2-s2.0-85101547050

Scopus

1.School of Environmental Science and Engineering,State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control,Southern University of Science and Technology,Shenzhen,China
2.School of Environmental Science and Engineering,Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control,Southern University of Science and Technology,Shenzhen,China
3.School of Water Conservancy and Civil Engineering,Northeast Agricultural University,Harbin,China
4.College of Water Resources and Architectural Engineering,Northwest A&F University,Yangling,China

Zhou，Zhaoqiang,Shi，Haiyun,Fu，Qiang,et al. Characteristics of Propagation From Meteorological Drought to Hydrological Drought in the Pearl River Basin[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2021,126(4).

Zhou，Zhaoqiang.,Shi，Haiyun.,Fu，Qiang.,Ding，Yibo.,Li，Tianxiao.,...&Liu，Suning.(2021).Characteristics of Propagation From Meteorological Drought to Hydrological Drought in the Pearl River Basin.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,126(4).

Zhou，Zhaoqiang,et al."Characteristics of Propagation From Meteorological Drought to Hydrological Drought in the Pearl River Basin".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 126.4(2021).