Changes in China's Snow Droughts Characteristics From 1993 to 2019
文献类型：期刊论文
| 作者 | Guan, Yanlong1,2; Liu, Junguo2,3,4; Li, Delong5; Dou, Yuehan6; Chen, Penghan2; Zhang, Chongyang7; Jiang, Yelin8; Chen, He2; Chen, Aifang2; Maeda, Eduardo Eiji9,10 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
 |
| 出版日期 | 2024-01-28 |
| 卷号 | 129期号:2页码:14 |
| ISSN号 | 2169-897X |
| DOI | 10.1029/2023JD039297 |
| 通讯作者 | Liu, Junguo(junguo.liu@gmail.com) |
| 英文摘要 | Snowpacks are natural water reservoirs providing a considerable amount of water for humans and ecosystems. However, current global snow products (e.g., ESA GlobSnow v3.0), lack high spatial resolution and regional calibrations necessary to capture the high heterogeneity of snow water equivalents (SWEs) in complex Asian mountainous terrains. Therefore, our understanding of snow drought characteristics in China remains limited. Herein, we used an improved SWE product calibrated specifically for China to explore the characteristics of snow droughts, delineated by a standardized SWE index (SWEI) between 1993 and 2019. Our analysis was focused over three main snow-covered regions of China: Qinghai-Tibet Plateau (QTP), northern Xinjiang, Northeast China. Especially during the period from 1993 to 2010, we found that the SWEI increased significantly at rates of 0.022/yr (Northeast China), 0.017/yr (northern Xinjiang), and 0.011/yr (QTP) (p < 0.01, Mann-Kendall trend test). Increased SWEI contributed to decreasing snow drought events across China, with an obvious short-term characteristic, whilst area proportion of the identified 1-month snow droughts was above 46.5% across three regions. Furthermore, we found that the occurrence of snow droughts was likely mediated by large-scale atmospheric circulation, since increased water vapor transport caused a significant vapor flux convergence in cold seasons over three regions, especially in northern Xinjiang and Northeast China. |
| WOS关键词 | REMOTE-SENSING DATA ; WATER EQUIVALENT ; DEPTH ; BOREAL ; COVER |
| 资助项目 | Shenzhen Science and Technology Program ; Henan Provincial Key Laboratory of Hydrosphere and Watershed Water Security, the Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[QZKK1003] ; National Natural Science Foundation of China[42307599] ; Key Laboratory of Water Cycle and Related Land Surface Processes, IGSNRR, CAS[WL2023003] ; [KCXFZ20201221173601003] |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:001148830200001 |
| 资助机构 | Shenzhen Science and Technology Program ; Henan Provincial Key Laboratory of Hydrosphere and Watershed Water Security, the Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; Key Laboratory of Water Cycle and Related Land Surface Processes, IGSNRR, CAS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/202309]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Junguo |
| 作者单位 | 1.Fujian Agr & Forestry Univ, Coll Resources & Environm, Fuzhou, Peoples R China 2.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen, Peoples R China 3.North China Univ Water Resource & Elect Power, Sch Water Conservancy, Zhengzhou, Peoples R China 4.North China Univ Water Resources & Elect Power, Henan Prov Key Lab Hydrosphere & Watershed Water S, Zhengzhou, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 6.Xian Jiaotong Liverpool Univ, Dept Hlth & Environm Sci, Suzhou, Peoples R China 7.Lanzhou Univ, Coll Atmospher Sci, Lanzhou, Peoples R China 8.Columbia Univ, Div Ocean & Climate Phys, Lamont Doherty Earth Observ, New York, NY USA 9.Univ Helsinki, Dept Geosci & Geog, Helsinki, Finland 10.Finnish Meteorol Inst, Helsinki, Finland |
| 推荐引用方式 GB/T 7714 | Guan, Yanlong,Liu, Junguo,Li, Delong,et al. Changes in China's Snow Droughts Characteristics From 1993 to 2019[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2024,129(2):14. |
| APA | Guan, Yanlong.,Liu, Junguo.,Li, Delong.,Dou, Yuehan.,Chen, Penghan.,...&Maeda, Eduardo Eiji.(2024).Changes in China's Snow Droughts Characteristics From 1993 to 2019.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,129(2),14. |
| MLA | Guan, Yanlong,et al."Changes in China's Snow Droughts Characteristics From 1993 to 2019".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 129.2(2024):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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