Assessing the recent droughts in Southwestern China using satellite gravimetry
文献类型：期刊论文
| 作者 | Tang, Jingshi1,2; Cheng, Haowen3 ; Liu, Lin1,2
|
| 刊名 | WATER RESOURCES RESEARCH
 |
| 出版日期 | 2014-04-01 |
| 卷号 | 50期号:4页码:3030-3038 |
| 关键词 | GRACE drought in Southwestern China terrestrial water storage |
| 英文摘要 | Heavy droughts have frequently struck Southwestern China in recent years. A major consequence of these droughts is the loss of terrestrial water storage (TWS) which affects agriculture, civil life, and industry production and results in serious social and economic losses. The satellite gravimetry has been proved an effective way to estimate hydrological variations over the globe, and we use the monthly gravity solutions from the Gravity Recovery and Climate Experiment (GRACE) satellite mission and extract the hydrological variations from the regional gravity signal. Here we show that the recent heavy droughts in Southwestern China have caused observable nonseasonal gravity changes in the monthly GRACE solutions. Two heavy droughts in September 2009 to May 2010 and August 2011 to January 2012 have resulted in significant TWS deficit up to hundreds of gigatons in Southwestern China. It is found that the latter drought in 2011-2012 is the most severe one in Southwestern China over the decade, hitting large areas, and causing heavy TWS deficit. Affected by the recent droughts, the GRACE estimate shows a gradual decrease in the regional TWS during the recent 4 years in Southwestern China with a nominal rate of -13.37.5 mm/yr, which indicates the severity of the TWS deficit in this area. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000336026000016 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6599]  |
| 专题 | 国家天文台_应用天文研究部 |
| 作者单位 | 1.Nanjing Univ, Key Lab Modern Astron & Astrophys, Sch Astron & Space Sci, Inst Space Environm & Astrodynam, Nanjing 210008, Jiangsu, Peoples R China 2.Sci & Technol Aerosp Flight Dynam Lab, Beijing, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Jingshi,Cheng, Haowen,Liu, Lin. Assessing the recent droughts in Southwestern China using satellite gravimetry[J]. WATER RESOURCES RESEARCH,2014,50(4):3030-3038. |
| APA | Tang, Jingshi,Cheng, Haowen,&Liu, Lin.(2014).Assessing the recent droughts in Southwestern China using satellite gravimetry.WATER RESOURCES RESEARCH,50(4),3030-3038. |
| MLA | Tang, Jingshi,et al."Assessing the recent droughts in Southwestern China using satellite gravimetry".WATER RESOURCES RESEARCH 50.4(2014):3030-3038. |
入库方式： OAI收割
来源：国家天文台
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