Meteorological and hydrological droughts in Mekong River Basin and surrounding areas under climate change
Study Region Mekong River Basin and surrounding areas. Study Focus: This study investigated the impacts of climate change on future meteorological and hydrological droughts in the Mekong River Basin and its surrounding areas. Our work is based on the output of five global climate models (GCMs) and s...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-08-01
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| Series: | Journal of Hydrology: Regional Studies |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581821001026 |
| _version_ | 1818911685105156096 |
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| author | Yishan Li Hui Lu Kun Yang Wei Wang Qiuhong Tang Sothea Khem Fan Yang Yugang Huang |
| author_facet | Yishan Li Hui Lu Kun Yang Wei Wang Qiuhong Tang Sothea Khem Fan Yang Yugang Huang |
| author_sort | Yishan Li |
| collection | DOAJ |
| description | Study Region Mekong River Basin and surrounding areas. Study Focus: This study investigated the impacts of climate change on future meteorological and hydrological droughts in the Mekong River Basin and its surrounding areas. Our work is based on the output of five global climate models (GCMs) and simulations using the geomorphology-based hydrological model (GBHM) for the historical (1975–2004), near future (2010–2039), middle future (2040–2069), and far future (2070–2099) periods. The meteorological droughts in the study area were measured using SPI and SPEI, while the hydrological droughts were measured using SSI. New Hydrological Insights for the Region: The results suggest that droughts will generally reduce in the future over most of the study area, but will be more unevenly distributed with an eastward migration as compared to the historical period. Both meteorological and hydrological droughts will intensify in the near future, but will then reduce in intensity. Meteorological droughts will increase in the northeastern areas in the near future, followed by migration towards the south. Hydrological droughts showed similar aggravation followed by reduction, with upstream areas showing greater variability. In the general context of drought alleviation, southwestern China and the Mekong River estuary may suffer from a continuously increasing drought intensity in the future. This finding is based on 100-year extreme drought events. |
| first_indexed | 2024-12-19T23:02:37Z |
| format | Article |
| id | doaj.art-39847156000a4eaf8c2090d4a7b26b77 |
| institution | Directory Open Access Journal |
| issn | 2214-5818 |
| language | English |
| last_indexed | 2024-12-19T23:02:37Z |
| publishDate | 2021-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj.art-39847156000a4eaf8c2090d4a7b26b772022-12-21T20:02:27ZengElsevierJournal of Hydrology: Regional Studies2214-58182021-08-0136100873Meteorological and hydrological droughts in Mekong River Basin and surrounding areas under climate changeYishan Li0Hui Lu1Kun Yang2Wei Wang3Qiuhong Tang4Sothea Khem5Fan Yang6Yugang Huang7Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, 100084, ChinaMinistry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, 100084, China; Ministry of Education Ecological Field Station for East Asian Migratory Birds, Beijing, 100084, China; Corresponding author at: Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, 100084, China.Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, 100084, China; Ministry of Education Ecological Field Station for East Asian Migratory Birds, Beijing, 100084, ChinaChangjiang Institute of Survey, Planning, Design and Research, Wuhan, 430010, ChinaKey Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, ChinaRegional Flood and Drought Management Center (RFDMC)/Mekong River Commission Secretariat (MRCS), Phnom Penh, 12302, CambodiaMinistry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, 100084, ChinaThe International Economic & Technical Cooperation and Exchange Center, Ministry of Water Resources, Beijing, 100053, ChinaStudy Region Mekong River Basin and surrounding areas. Study Focus: This study investigated the impacts of climate change on future meteorological and hydrological droughts in the Mekong River Basin and its surrounding areas. Our work is based on the output of five global climate models (GCMs) and simulations using the geomorphology-based hydrological model (GBHM) for the historical (1975–2004), near future (2010–2039), middle future (2040–2069), and far future (2070–2099) periods. The meteorological droughts in the study area were measured using SPI and SPEI, while the hydrological droughts were measured using SSI. New Hydrological Insights for the Region: The results suggest that droughts will generally reduce in the future over most of the study area, but will be more unevenly distributed with an eastward migration as compared to the historical period. Both meteorological and hydrological droughts will intensify in the near future, but will then reduce in intensity. Meteorological droughts will increase in the northeastern areas in the near future, followed by migration towards the south. Hydrological droughts showed similar aggravation followed by reduction, with upstream areas showing greater variability. In the general context of drought alleviation, southwestern China and the Mekong River estuary may suffer from a continuously increasing drought intensity in the future. This finding is based on 100-year extreme drought events.http://www.sciencedirect.com/science/article/pii/S2214581821001026DroughtSPISPEISSIMekong River BasinClimate change |
| spellingShingle | Yishan Li Hui Lu Kun Yang Wei Wang Qiuhong Tang Sothea Khem Fan Yang Yugang Huang Meteorological and hydrological droughts in Mekong River Basin and surrounding areas under climate change Journal of Hydrology: Regional Studies Drought SPI SPEI SSI Mekong River Basin Climate change |
| title | Meteorological and hydrological droughts in Mekong River Basin and surrounding areas under climate change |
| title_full | Meteorological and hydrological droughts in Mekong River Basin and surrounding areas under climate change |
| title_fullStr | Meteorological and hydrological droughts in Mekong River Basin and surrounding areas under climate change |
| title_full_unstemmed | Meteorological and hydrological droughts in Mekong River Basin and surrounding areas under climate change |
| title_short | Meteorological and hydrological droughts in Mekong River Basin and surrounding areas under climate change |
| title_sort | meteorological and hydrological droughts in mekong river basin and surrounding areas under climate change |
| topic | Drought SPI SPEI SSI Mekong River Basin Climate change |
| url | http://www.sciencedirect.com/science/article/pii/S2214581821001026 |
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