干旱区生态环境知识资源中心(Arid): ICESat/GLAS-derived changes in the water level of Hulun Lake, Inner Mongolia, from 2003 to 2009

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	ICESat/GLAS-derived changes in the water level of Hulun Lake, Inner Mongolia, from 2003 to 2009
	Li Chunlan; Wang Jun; Hu Richa; Yin Shan; Bao Yuhai; Li Yuwei
来源期刊	Frontiers of Earth Science
ISSN	2095-0195
出版年	2018
卷号	12 期号:2 页码:420-430
英文摘要	Hulun Lake is the largest freshwater lake in northern Inner Mongolia and even minor changes in its level may have major effects on the ecology of the lake and the surrounding area. In this study, we used high-precision elevation data for the interval from 2003-2009 measured by the Geoscience Laser Altimetry System (GLAS) on board the Ice, Cloud, and land Elevation Satellite (ICESat) to assess annual and seasonal water level variations of Hulun Lake. The altimetry data of 32 satellite tracks were processed using the RANdom SAmple Consensus algorithm (RANSAC) to eliminate elevation outliers, and subsequently the Normalized Difference Water Index (NDWI) was used to delineate the area of the lake. From 2003-2009, the shoreline of Hulun Lake retreated westwards, which was especially notable in the southern part of the lake. There was only a small decrease in water level, from 530.72 m to 529.22 m during 2003-2009, an average rate of 0.08 m/yr. The area of the lake decreased at a rate of 49.52 km2/yr, which was mainly the result of the shallow bathymetry in the southern part of the basin. The decrease in area was initially rapid, then much slower, and finally rapid again. Generally, the lake extent and water level decreased due to higher temperatures, intense evaporation, low precipitation, and decreasing runoff. And their fluctuations were caused by a decrease in intraannual temperature, evaporation, and a slight increase in precipitation. Overall, a combination of factors related to climate change were responsible for the variations of the water level of Hulun Lake during the study interval. The results improve our understanding of the impact of climate change on Hulun Lake and may facilitate the formulation of response strategies.
英文关键词	ICESat/GLAS altimetry water level Hulun Lake arid area climate change
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:6265484
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335964
作者单位	Li Chunlan, East China Normal University;;School of Geographic Sciences, East China Normal University, Key Laboratory of Geographic Information Science (Ministry of Education);;, ;;, Shanghai;;Shanghai 200241;;200241.; Wang Jun, East China Normal University;;School of Geographic Sciences, East China Normal University, Key Laboratory of Geographic Information Science (Ministry of Education);;, ;;, Shanghai;;Shanghai 200241;;200241.; Hu Richa, College of Geographical Sciences, Inner Mongolia Normal University, Huhhot, Inner Mongolia 010022, China.; Li Yuwei, College of Geographical Sciences, Inner Mongolia Normal University, Huhhot, Inner Mongolia 010022, China.; Yin Shan, College of Geographical Sciences, Inner Mongolia Normal University;;Inner Mongolia Normal University, ;;Inner Mongolia Key Laboratory of Remote Sensing and Geographic Information System, Huhhot;;Huhhot, ;; 010022;;010022.; Bao Yuhai, Inner Mongolia Normal University, Inner Mongolia Key Laboratory of Remote Sensing and Geographic Informati...
推荐引用方式 GB/T 7714	Li Chunlan,Wang Jun,Hu Richa,et al. ICESat/GLAS-derived changes in the water level of Hulun Lake, Inner Mongolia, from 2003 to 2009[J],2018,12(2):420-430.
APA	Li Chunlan,Wang Jun,Hu Richa,Yin Shan,Bao Yuhai,&Li Yuwei.(2018).ICESat/GLAS-derived changes in the water level of Hulun Lake, Inner Mongolia, from 2003 to 2009.Frontiers of Earth Science,12(2),420-430.
MLA	Li Chunlan,et al."ICESat/GLAS-derived changes in the water level of Hulun Lake, Inner Mongolia, from 2003 to 2009".Frontiers of Earth Science 12.2(2018):420-430.