Unravelling spatiotemporal propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective
Flash droughts, defined by their rapid development and intensification, have received growing attention due to their severe impacts. Understanding the mechanisms and evolutions of flash drought events is crucial for early warning and mitigation. However, research on the propagation processes among d...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-03-01
|
| Series: | Agricultural Water Management |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378377425000083 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832586827249221632 |
|---|---|
| author | Chen Hu Dunxian She Gangsheng Wang Liping Zhang Zhaoxia Jing Zhihong Song Jun Xia |
| author_facet | Chen Hu Dunxian She Gangsheng Wang Liping Zhang Zhaoxia Jing Zhihong Song Jun Xia |
| author_sort | Chen Hu |
| collection | DOAJ |
| description | Flash droughts, defined by their rapid development and intensification, have received growing attention due to their severe impacts. Understanding the mechanisms and evolutions of flash drought events is crucial for early warning and mitigation. However, research on the propagation processes among different flash drought types remains limited. Here we developed a spatiotemporal matching framework to identify propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective, applying it to the middle and lower reaches of Yangtze River Basin (MLRYRB) from 2000 to 2022. Additionally, we utilized the random forest model to identify critical factors influencing flash drought propagation. Results showed that among three flash drought types, evaporative flash droughts exhibited the lowest number, duration, and severity, while soil flash droughts displayed the highest. The spatiotemporal matching framework identified 21 meteorological-soil, 12 meteorological-evaporative, 10 soil-evaporative, 19 evaporative-soil, 8 meteorological-soil-evaporative, and 4 meteorological-evaporative-soil flash drought propagation events in the MLRYRB, whereas minor flash droughts with short durations and limited areas failed to pair. Propagation towards evaporative flash droughts was associated with reduced duration, areas, and severity, while intensifying characteristics of flash droughts were observed in the propagation towards soil flash droughts. Vapor pressure deficit (VPD) and temperature were the main factors influencing propagations toward soil and evaporative flash droughts, respectively. Our findings can provide valuable insights into flash drought propagation processes and mechanisms, aiding in the establishment of flash drought early warning system and supporting policymakers in formulating adaptive agricultural water supply polices. |
| format | Article |
| id | doaj-art-e50919da7f364382b57ed111865405c4 |
| institution | Kabale University |
| issn | 1873-2283 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Agricultural Water Management |
| spelling | doaj-art-e50919da7f364382b57ed111865405c42025-01-25T04:10:48ZengElsevierAgricultural Water Management1873-22832025-03-01308109294Unravelling spatiotemporal propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspectiveChen Hu0Dunxian She1Gangsheng Wang2Liping Zhang3Zhaoxia Jing4Zhihong Song5Jun Xia6State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, PR China; Corresponding author.State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, PR China; Institute for Water-Carbon Cycles and Carbon Neutrality, Wuhan University, Wuhan 430072, PR ChinaState Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, PR China; Institute for Water-Carbon Cycles and Carbon Neutrality, Wuhan University, Wuhan 430072, PR ChinaState Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, PR China; Institute for Water-Carbon Cycles and Carbon Neutrality, Wuhan University, Wuhan 430072, PR ChinaChangjiang Water Resources Protection Institute, Wuhan 430051, PR ChinaChangjiang River Scientific Research Institute, Wuhan 430010, PR ChinaState Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, PR China; Institute for Water-Carbon Cycles and Carbon Neutrality, Wuhan University, Wuhan 430072, PR China; Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, PR China; Corresponding author at: State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, PR China.Flash droughts, defined by their rapid development and intensification, have received growing attention due to their severe impacts. Understanding the mechanisms and evolutions of flash drought events is crucial for early warning and mitigation. However, research on the propagation processes among different flash drought types remains limited. Here we developed a spatiotemporal matching framework to identify propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective, applying it to the middle and lower reaches of Yangtze River Basin (MLRYRB) from 2000 to 2022. Additionally, we utilized the random forest model to identify critical factors influencing flash drought propagation. Results showed that among three flash drought types, evaporative flash droughts exhibited the lowest number, duration, and severity, while soil flash droughts displayed the highest. The spatiotemporal matching framework identified 21 meteorological-soil, 12 meteorological-evaporative, 10 soil-evaporative, 19 evaporative-soil, 8 meteorological-soil-evaporative, and 4 meteorological-evaporative-soil flash drought propagation events in the MLRYRB, whereas minor flash droughts with short durations and limited areas failed to pair. Propagation towards evaporative flash droughts was associated with reduced duration, areas, and severity, while intensifying characteristics of flash droughts were observed in the propagation towards soil flash droughts. Vapor pressure deficit (VPD) and temperature were the main factors influencing propagations toward soil and evaporative flash droughts, respectively. Our findings can provide valuable insights into flash drought propagation processes and mechanisms, aiding in the establishment of flash drought early warning system and supporting policymakers in formulating adaptive agricultural water supply polices.http://www.sciencedirect.com/science/article/pii/S0378377425000083Flash drought typesFlash drought transitionSpatiotemporal dynamicsDrought events matchingYangtze River Basin |
| spellingShingle | Chen Hu Dunxian She Gangsheng Wang Liping Zhang Zhaoxia Jing Zhihong Song Jun Xia Unravelling spatiotemporal propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective Agricultural Water Management Flash drought types Flash drought transition Spatiotemporal dynamics Drought events matching Yangtze River Basin |
| title | Unravelling spatiotemporal propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective |
| title_full | Unravelling spatiotemporal propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective |
| title_fullStr | Unravelling spatiotemporal propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective |
| title_full_unstemmed | Unravelling spatiotemporal propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective |
| title_short | Unravelling spatiotemporal propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective |
| title_sort | unravelling spatiotemporal propagation processes among meteorological soil and evaporative flash droughts from a three dimensional perspective |
| topic | Flash drought types Flash drought transition Spatiotemporal dynamics Drought events matching Yangtze River Basin |
| url | http://www.sciencedirect.com/science/article/pii/S0378377425000083 |
| work_keys_str_mv | AT chenhu unravellingspatiotemporalpropagationprocessesamongmeteorologicalsoilandevaporativeflashdroughtsfromathreedimensionalperspective AT dunxianshe unravellingspatiotemporalpropagationprocessesamongmeteorologicalsoilandevaporativeflashdroughtsfromathreedimensionalperspective AT gangshengwang unravellingspatiotemporalpropagationprocessesamongmeteorologicalsoilandevaporativeflashdroughtsfromathreedimensionalperspective AT lipingzhang unravellingspatiotemporalpropagationprocessesamongmeteorologicalsoilandevaporativeflashdroughtsfromathreedimensionalperspective AT zhaoxiajing unravellingspatiotemporalpropagationprocessesamongmeteorologicalsoilandevaporativeflashdroughtsfromathreedimensionalperspective AT zhihongsong unravellingspatiotemporalpropagationprocessesamongmeteorologicalsoilandevaporativeflashdroughtsfromathreedimensionalperspective AT junxia unravellingspatiotemporalpropagationprocessesamongmeteorologicalsoilandevaporativeflashdroughtsfromathreedimensionalperspective |