气候变化领域集成服务门户(CCPortal): Precipitation Dominates Long-Term Water Storage Changes in Nam Co Lake (Tibetan Plateau) Accompanied by Intensified Cryosphere Melts Revealed by a Basin-Wide Hydrological Modelling

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DOI	10.3390/rs12121926
	Precipitation Dominates Long-Term Water Storage Changes in Nam Co Lake (Tibetan Plateau) Accompanied by Intensified Cryosphere Melts Revealed by a Basin-Wide Hydrological Modelling
	Zhong, Xiaoyang; Wang, Lei; Zhou, Jing; Li, Xiuping; Qi, Jia; Song, Lei; Wang, Yuanwei
通讯作者	Wang, L (通讯作者)
发表日期	2020
EISSN	2072-4292
卷号	12 期号:12
英文摘要	Lakes on the Tibetan Plateau (TP) have changed dramatically as a result of climate change during recent decades. Studying the changes in long-term lake water storage (LWS) is of great importance for regional water security and ecosystems. Nam Co Lake is the second largest lake in the central TP. To investigate the long-term changes in LWS, a distributed cryosphere-hydrology model (WEB-DHM) driven by multi-source data was evaluated and then applied to simulate hydrological processes across the whole Nam Co Lake basin from 1980 to 2016. Firstly, a comparison of runoff (lake inflow), land surface temperature, and snow depth between the model simulations and observations or remote sensing products showed that WEB-DHM could accurately simulate hydrological processes in the basin. Meanwhile, the simulated daily LWS was in good agreement with satellite-derived data during 2000-2016. Secondly, long-term simulations showed that LWS increased by 9.26 km(3)during 1980-2016, reaching a maximum in 2010 that was 10.25 km(3)greater than that in 1980. During this period, LWS firstly decreased (1980-1987), then increased (1988-2008), and decreased again (2009-2016). Thirdly, the contributions of precipitation runoff, melt-water runoff, lake surface precipitation, and lake evaporation to Nam Co LWS were 71%, 33%, 24%, and -28%, respectively. Snow and glacier melting have significantly intensified during recent decades (2.96 m(3)s(-1)/decade on average), contributing a mean proportion of 22% of lake inflows. These findings are consistent with the significant increasing trends of annual precipitation and temperature in the lake basin (25 mm/decade and 0.4 K/decade, respectively). We conclude that long-term variations in Nam Co LWS during 1980-2016 were largely controlled by precipitation; however, the contribution of precipitation runoff to total lake inflow has decreased while the contribution from warming-induced snow and glacier melting has significantly increased.
关键词	SURFACE PARAMETERIZATION SIB2 GLACIER MASS-BALANCE CLIMATE-CHANGE ATMOSPHERIC GCMS INLAND LAKE LEVEL EVAPORATION CATCHMENT AREA RUNOFF
英文关键词	cryosphere-hydrology model; lake basin; lake water storage; snow and glacier melt; Tibetan Plateau
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000553989800001
来源期刊	REMOTE SENSING
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259736
推荐引用方式 GB/T 7714	Zhong, Xiaoyang,Wang, Lei,Zhou, Jing,et al. Precipitation Dominates Long-Term Water Storage Changes in Nam Co Lake (Tibetan Plateau) Accompanied by Intensified Cryosphere Melts Revealed by a Basin-Wide Hydrological Modelling[J]. 中国科学院青藏高原研究所,2020,12(12).
APA	Zhong, Xiaoyang.,Wang, Lei.,Zhou, Jing.,Li, Xiuping.,Qi, Jia.,...&Wang, Yuanwei.(2020).Precipitation Dominates Long-Term Water Storage Changes in Nam Co Lake (Tibetan Plateau) Accompanied by Intensified Cryosphere Melts Revealed by a Basin-Wide Hydrological Modelling.REMOTE SENSING,12(12).
MLA	Zhong, Xiaoyang,et al."Precipitation Dominates Long-Term Water Storage Changes in Nam Co Lake (Tibetan Plateau) Accompanied by Intensified Cryosphere Melts Revealed by a Basin-Wide Hydrological Modelling".REMOTE SENSING 12.12(2020).