Accelerated Atmospheric to Hydrological Spread of Drought in the Yangtze River Basin under Climate DOI Creative Commons
Chengyuan Zhang,

Zhiming Han,

Shuo Wang

et al.

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(16), P. 3033 - 3033

Published: Aug. 18, 2024

Persistent droughts pose a threat to agricultural production, and the changing environment worsens risk of drought exposure. Understanding propagation in environments assessing possible impact factors can help early detection drought, guiding production practices. The current study cannot reflect status total terrestrial hydrological so this work creatively investigated atmospheric time Yangtze River Basin under dynamic static perspectives based on Standardized Precipitation Evapotranspiration Index Terrestrial Water Storage Anomalous Drought Index, fine-tuned scale seasonal scale, explored contributing capacity variable interactions. results show that: (1) perspective, while is decreasing annual spring season shows opposite trend; (2) large variability exists timing at spatial scales, with elevation playing most important influential role, bivariate interactions stronger explanations compared single variables. This highlights importance considering contributes our understanding response secondary upper-level droughts, providing valuable insights into hydrologic drought.

Language: Английский

Investigating the Characteristics and Drivers of Slow Droughts and Flash Droughts: A Multi‐Temporal Scale Drought Identification Framework DOI Creative Commons
Zixuan Qi, Yuchen Ye, Yanpeng Cai

et al.

Water Resources Research, Journal Year: 2025, Volume and Issue: 61(2)

Published: Feb. 1, 2025

Abstract Global climate change has altered the characteristics of conventional drought events, with an increasing number Slow droughts (SD) rapidly transitioning into Flash (FD). This study introduces a novel multi‐temporal scale identification framework (MTSDIF) that classifies historical agricultural events three types: SD, FD, and Slow‐to‐Flash Drought (SFD). Based on MTSDIF, GLDAS‐Noah root zone soil moisture dataset was used to analyze spatiotemporal characteristics, evolution, driving factors in China. Our confirms effectiveness proposed MTSDIF classifying different onset speeds (SD, SFD). The results indicate that, from 1980 2020, types China exhibited short‐term, medium‐term, long‐term periodic oscillations. Before 2000, SD were predominant type China, but post‐2000, areas affected by FD SFD have been continuously expanding. Compared key meteorological elements influencing show anomalies exceeding 0.5 times standard deviation. In southeastern regions human‐impacted soils, leached incept soils exhibit higher response frequency FD. Sea surface temperature indices, including interannual El Niño‐Southern Oscillation Pacific interdecadal variations such as +PDO −AMO, significantly influence occurrence monsoon ( p < 0.01). Together, highlight necessity understanding disparities consistencies land‐atmosphere‐ocean mechanisms behind varying speeds.

Language: Английский

Citations

3
From meteorological to agricultural drought: Propagation time and influencing factors over diverse underlying surfaces based on CNN-LSTM model DOI Creative Commons

Junchen Long,

Changchun Xu, Yazhen Wang

et al.

Ecological Informatics, Journal Year: 2024, Volume and Issue: 82, P. 102681 - 102681

Published: June 17, 2024

As global warming intensifies and extreme weather events become more frequent, the severity of drought conditions in China's Xinjiang region has escalated. This exacerbates socio-economic pressures area presents increasingly formidable challenges for future. In response to these challenges, researching phenomena is imperative. study employs Bayesian methods copula functions estimate propagation time. It utilizes a hybrid deep learning model (CNN-LSTM) analyze process its influencing factors across four land cover types: crops, forest land, grassland, unused land. The findings indicate that Cropland experiences longest average time (5.27 months), while forests have shortest duration (4.2 months). Unused grassland exhibit similar durations (4.8 On an annual scale, each type manifests two phases: from January May June December. former phase shows ranging 6 9 months, latter ranges 1 5 months; both demonstrate increasing trend over Seasonally, all Land Cover Types pattern shorter times summer autumn compared with winter spring. Moreover, longer correlates greater disparity between meteorological resultant agricultural severity. analyzing influence on propagation, soil moisture content El Niño-Southern Oscillation(ENSO) were found significantly impact Types, progressively strengthening their years.

Language: Английский

Citations

8
Nonlinear propagation of meteorological to hydrological drought: Contrasting dynamics in humid and semi-arid regions DOI

Yunyun Li,

Qian Deng,

Jianxia Chang

et al.

Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 133012 - 133012

Published: March 1, 2025

Language: Английский

Citations

0
Analysis of water resources carrying capacity and obstacle factors in Gansu section of the Wei River basin using combined weighting TOPSIS model DOI Creative Commons
Kai Duan,

Zuirong Niu,

Liang Cui

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 14, 2025

Abstract Water resource carrying capacity is an important indicator for measuring sustainable development. Given the rapid economic and social development in China today, coordinating of water resources, socio-economy, eco-environment has become urgent problem to be solved. This study takes Gansu section Wei River mainstream basin (GWRB) as a case constructs three-dimensional WRCC evaluation system status standards. Based on this research framework, we analyzed trends changes GWRB from 2008 2022. Additionally, conducted in-depth internal relationships influencing factors within system. The results show that combination weighting method multi-weight models avoids one-sidedness single weighting, leading more realistic distribution weights. result standard derived prevents disconnect between status, making rational accurate. increased 0.098 (overloaded) 0.621 (weakly bearable) During period, eco-environmental improved critical bearable, while socio-economic overloaded weakly bearable. Due geographical climatic limitations, continued bear significant pressure remained state most time. key limiting further improvement are per capita utilization rate COD emission 10,000 yuan GDP, ecological use rate, consumption GDP agricultural rate. To improve WRCC, propose series targeted recommendations based findings. proposed framework can also serve reference related studies arid semi-arid regions.

Language: Английский

Citations

0
Quantifying the effects of direct human activities and climate change on the spatial propagation of hydrological drought in the Yellow River Basin, China DOI

Meng Du,

Shengzhi Huang,

Vijay P. Singh

et al.

Journal of Hydrology, Journal Year: 2024, Volume and Issue: 643, P. 131931 - 131931

Published: Sept. 1, 2024

Language: Английский

Citations

3
Impact of human activities on the propagation dynamics from meteorological to hydrological drought in the Nenjiang River Basin, Northeast China DOI Creative Commons

Xubo Geng,

Xiaoping Lei, Xiaoyan Song

et al.

Journal of Hydrology Regional Studies, Journal Year: 2025, Volume and Issue: 58, P. 102214 - 102214

Published: Feb. 6, 2025

Language: Английский

Citations

0
Delineating dynamic hydrological response units to improve simulations of extreme runoff events in changing environments DOI
Yuheng Yang, Ruiying Zhao, Asim Biswas

et al.

Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 133000 - 133000

Published: March 1, 2025

Language: Английский

Citations

0
Accelerated Atmospheric to Hydrological Spread of Drought in the Yangtze River Basin under Climate DOI Creative Commons
Chengyuan Zhang,

Zhiming Han,

Shuo Wang

et al.

Remote Sensing, Journal Year: 2024, Volume and Issue: 16(16), P. 3033 - 3033

Published: Aug. 18, 2024

Persistent droughts pose a threat to agricultural production, and the changing environment worsens risk of drought exposure. Understanding propagation in environments assessing possible impact factors can help early detection drought, guiding production practices. The current study cannot reflect status total terrestrial hydrological so this work creatively investigated atmospheric time Yangtze River Basin under dynamic static perspectives based on Standardized Precipitation Evapotranspiration Index Terrestrial Water Storage Anomalous Drought Index, fine-tuned scale seasonal scale, explored contributing capacity variable interactions. results show that: (1) perspective, while is decreasing annual spring season shows opposite trend; (2) large variability exists timing at spatial scales, with elevation playing most important influential role, bivariate interactions stronger explanations compared single variables. This highlights importance considering contributes our understanding response secondary upper-level droughts, providing valuable insights into hydrologic drought.

Language: Английский

Citations

0