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

Zhou, Zhaoqiang; Shi, Haiyun; Fu, Qiang; Ding, Yibo; Li, Tianxiao; Wang, Yao; Liu, Suning

doi:10.1029/2020jd033959

Cited by 97 publications

(74 citation statements)

References 56 publications

(103 reference statements)

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“…As a result, the duration of hydrological drought is longer than that of meteorological drought, which explains why meteorological drought is intra-seasonal, while hydrological drought is interseasonal in the WRB. This conclusion is consistent with the ndings of literature review that meteorological droughts have a higher frequency and a shorter duration than those of hydrological droughts (Wu et al, 2017;Xu et al, 2019;Zhou et al, 2021). Consequently, according to the characteristics of meteorological and hydrological droughts in the WRB, corresponding measures (such as reservoir regulation, etc.)…”

Section: Intra-seasonal and Inter-seasonal Droughtssupporting

confidence: 89%

Comprehensive Meteorological and Hydrological Drought Risks Under Changing Environment on the Wanquan River Basin, Southern China

Li¹,

Liu²,

2022

Preprint

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Drought is one of the most frequent and devastating natural disasters. Based on future climate scenarios and land use/land cover (LULC) patterns, this study employed the copula framework to calculate the probabilities of meteorological drought risk based on downscaled data as well as hydrological drought risks based on SWAT model simulation data for the next 30 years (2021-2050) in the Wanquan River Basin (WRB), and meanwhile, the relationship between hydrological and meteorological droughts was revealed by correlation analysis and cross wavelet transform (XWT). The results are as follows: (1) In the next 30 years, the risk of intra-seasonal meteorological drought (short-term drought) in the WRB is high at a probability of 40%-70%, while the risk of inter-seasonal meteorological drought is relatively small at a probability of close to 30%; (2) Compared with meteorological drought, the risk of intra-seasonal hydrological drought is small, but the probability of inter-seasonal hydrological drought (medium or long term drought) is 30%-50%, and the risk of hydrological drought in the upstream is greater than that in the downstream; (3) The future meteorological and hydrological droughts in the WRB are significantly and positively correlated, and that hydrological drought lags behind meteorological drought.

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Section: Intra-seasonal and Inter-seasonal Droughtssupporting

confidence: 89%

Comprehensive Meteorological and Hydrological Drought Risks Under Changing Environment on the Wanquan River Basin, Southern China

Li¹,

Liu²,

2022

Preprint

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“…The average annual runoff of each sub-region is 775, 433, 1,410, 799, and 852 mm, and the variation of runoff in each sub-region is 7. 47, 6.74,13.75, 7.19, and 10.54 mm/a, respectively (Zhou, Shi, et al, 2021). The land use in the study area is shown in Figure 1c, which mainly includes croplands (CR), woody savannas, mixed ZHOU ET AL.…”

Section: Study Areamentioning

confidence: 99%

“…The average annual precipitation of each sub‐region is 1,828, 1,353, 2,371, 1,679, and 1,847 mm, and the variation of precipitation in each sub‐region is 6.14, 5.93, 12.91, 5.79, and 9.77 mm/a, respectively. The average annual runoff of each sub‐region is 775, 433, 1,410, 799, and 852 mm, and the variation of runoff in each sub‐region is 7.47, 6.74,13.75, 7.19, and 10.54 mm/a, respectively (Zhou, Shi, et al., 2021). The land use in the study area is shown in Figure 1c, which mainly includes croplands (CR), woody savannas, mixed forests (MF), and evergreen broadleaf forest (EBF).…”

Section: Study Area and Datamentioning

confidence: 99%

Investigating the Propagation From Meteorological to Hydrological Drought by Introducing the Nonlinear Dependence With Directed Information Transfer Index

Zhou

Shi

et al. 2021

Water Resources Research

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Meteorological drought is the fuse of hydrological drought, and understanding the propagation mechanisms from meteorological to hydrological drought is of great significance to the monitoring and prevention of hydrological drought. Besides the linear dependence, this study thoroughly investigated the propagation from meteorological to hydrological drought by introducing the nonlinear dependence with directed information transfer index (DITI) for the first time. In this study, the standardized precipitation index and the standardized runoff index were used to represent meteorological drought and hydrological drought, respectively. A new drought response time (DRT) evaluation system was constructed based on the maximum Pearson correlation coefficient and DITI, simultaneously considering the linear and nonlinear relationships between meteorological drought and hydrological drought. Moreover, the relationships of drought characteristics (duration and severity) between these two types of drought were established by using run theory and mathematical function, and the trigger thresholds from meteorological to hydrological drought were then determined. The results indicate that: (a) the effective drought propagation rate was mainly affected by the characteristics of meteorological drought events and the sensitivity of hydrological drought to meteorological drought; (b) the DRT in the Pearl River Basin (PRB) was mainly concentrated in 2–5 months, and the drought translation rate in the PRB was relatively large; and (c) the duration of hydrological drought events was longer in the sub‐regions with smaller meteorological drought trigger thresholds.

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“…In other words, the river flow cannot satisfy the water supply demand in a certain period (Van Loon & Van Lanen 2012;Van Loon & Laaha 2015). According to the definition of hydrological droughts and Karst basin characteristics (Tsakiris et al 2007;Liu et al 2012;López-Moreno et al 2013;Jehanzaib et al 2020;Zhou et al 2020), the SRI was quoted to describe the hydrological drought characteristics in this paper. The SRI can be expressed as follows:…”

Section: Identification Of Hydrological Droughtmentioning

confidence: 99%

Study on the driven mechanism of hydrologic drought based on the lithology-combined structure of the Karst drainage basin in South China

Liang

Yang³

2021

Journal of Water and Climate Change

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Hydrologic drought, considered as a typical natural phenomenon in the background of global climate changes, is the continuation and development of meteorological and agricultural droughts, and is the ultimate and most thoroughly drought. The research area controlled by the 55 hydrological sections in South China is selected in this paper, and the intensity and frequency of hydrologic droughts are analyzed by the Standardized Runoff Index (SRI), and the driven mechanism of watershed lithologies to hydrologic droughts is discussed. The results show that (i) the hydrological drought of Karst drainage basins is shown the gradual aggravation from the west to east parts in South China, with the significant north–south stripe distributions at the SRI_3 and SRI_6; (ii) the occurring probability of hydrological droughts is the Limestone-type Karst Basin (II and III, 0.17) < Dolomite-type Karst Basin (I and IV, 0.22) < Non-Karst Basin (V, 0.25) in terms of combination types of basin lithologies, and (iii) the Karst Basin (I and III, 0.18) < Semi-Karst Basin (II and IV, 0.2) < Non-Karst Basin (V, 0.25) in terms of basin lithologies. Therefore, this proves that the most water-stored spaces are found in Karst Basins under the differential dissolution or erosion effects of soluble water, followed by in the Semi-Karst Basin, the least water-stored spaces in the Non-Karst Basin.

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

Cited by 97 publications

References 56 publications

Comprehensive Meteorological and Hydrological Drought Risks Under Changing Environment on the Wanquan River Basin, Southern China

Comprehensive Meteorological and Hydrological Drought Risks Under Changing Environment on the Wanquan River Basin, Southern China

Investigating the Propagation From Meteorological to Hydrological Drought by Introducing the Nonlinear Dependence With Directed Information Transfer Index

Study on the driven mechanism of hydrologic drought based on the lithology-combined structure of the Karst drainage basin in South China

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