Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aab5d3 |
Lake storage variation on the endorheic Tibetan Plateau and its attribution to climate change since the new millennium | |
Yao, Fangfang1; Wang, Jida1; Yang, Kehan2; Wang, Chao3; Walter, Blake A.1; Cretaux, Jean-Francois4 | |
2018-06-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; France |
英文摘要 | Alpine lakes in the interior of Tibet, the endorheic Changtang Plateau (CP), serve as 'sentinels' of regional climate change. Recent studies indicated that accelerated climate change has driven a widespread area expansion in lakes across the CP, but comprehensive and accurate quantifications of their storage changes are hitherto rare. This study integrated optical imagery and digital elevation models to uncover the fine spatial details of lake water storage (LWS) changes across the CP at an annual timescale after the new millennium (from 2002-2015). Validated by hypsometric information based on long-term altimetry measurements, our estimated LWS variations outperform some existing studies with reduced estimation biases and improved spatiotemporal coverages. The net LWS increased at an average rate of 7.34 +/- 0.62 Gt yr(-1) (cumulatively 95.42 +/- 8.06 Gt), manifested as a dramatic monotonic increase of 9.05 +/- 0.65 Gt yr(-1) before 2012, a deceleration and pause in 2013-2014, and then an intriguing decline after 2014. Observations from the Gravity Recovery and Climate Experiment satellites reveal that the LWS pattern is in remarkable agreement with that of regional mass changes: a net effect of precipitation minus evapotranspiration (P-ET) in endorheic basins. Despite some regional variations, P-ET explains similar to 70% of the net LWS gain from 2002-2012 and the entire LWS loss after 2013. These findings clearly suggest that the water budget from net precipitation (i.e. P-ET) dominates those of glacier melt and permafrost degradation, and thus acts as the primary contributor to recent lake area/volume variations in endorheic Tibet. The produced lake areas and volume change dataset is freely available through PANAGEA (https://doi.pangaea.de/10.1594/PANGAEA.888706). |
英文关键词 | alpine lakes Changtang Plateau endorheic Tibet lake water storage climate change satellite altimetry digital elevation models |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000433551000002 |
WOS关键词 | WATER STORAGE ; DYNAMICS ; CO ; GLACIER ; BASIN ; GROWTH ; VOLUME ; TREND |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31037 |
专题 | 气候变化 |
作者单位 | 1.Kansas State Univ, Dept Geog, Manhattan, KS 66506 USA; 2.Univ Colorado, Dept Geog, Inst Arctic & Alpine Res, Boulder, CO 80309 USA; 3.Univ Puerto Rico, Dept Environm Sci, San Juan, PR 00936 USA; 4.Ctr Natl Etud Spatiales, Lab Etud Geophys & Oceanog Spatiales, Toulouse, France |
推荐引用方式 GB/T 7714 | Yao, Fangfang,Wang, Jida,Yang, Kehan,et al. Lake storage variation on the endorheic Tibetan Plateau and its attribution to climate change since the new millennium[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(6). |
APA | Yao, Fangfang,Wang, Jida,Yang, Kehan,Wang, Chao,Walter, Blake A.,&Cretaux, Jean-Francois.(2018).Lake storage variation on the endorheic Tibetan Plateau and its attribution to climate change since the new millennium.ENVIRONMENTAL RESEARCH LETTERS,13(6). |
MLA | Yao, Fangfang,et al."Lake storage variation on the endorheic Tibetan Plateau and its attribution to climate change since the new millennium".ENVIRONMENTAL RESEARCH LETTERS 13.6(2018). |
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