中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Spatial-temporal variations of lake ice phenology in the Hoh Xil region from 2000 to 2011

文献类型:期刊论文

作者Yao Xiaojun1; Li Long1,2; Zhao Jun1; Sun Meiping1,3; Li Jing1; Gong Peng1; An Lina1
刊名JOURNAL OF GEOGRAPHICAL SCIENCES
出版日期2016
卷号26期号:1页码:70-82
ISSN号1009-637X
关键词lake ice phenology climate change Hoh Xil region Tibetan Plateau
DOI10.1007/s11442-016-1255-6
通讯作者Yao Xiaojun(xj_yao@nwnu.edu.cn)
英文摘要Lake ice phenology, i.e. the timing of freeze-up and break-up and the duration of the ice cover, is regarded as an important indicator of changes in regional climate. Based on the boundary data of lakes, some moderate-high resolution remote sensing datasets including MODIS and Landsat TM/ETM+ images and the meteorological data, the spatial-temporal variations of lake ice phenology in the Hoh Xil region during the period 2000-2011 were analyzed by using RS and GIS technology. And the factors affecting the lake ice phenology were also identified. Some conclusions can be drawn as follows. (1) The time of freeze-up start (FUS) and freeze-up end (FUE) of lake ice appeared in the late October early November, mid-November - early December, respectively. The duration of lake ice freeze-up was about half a month. The time of break-up start (BUS) and break-up end (BUE) of lake ice were relatively dispersed, and appeared in the early February early June, early May - early June, respectively. The average ice duration (ID) and the complete ice duration (CID) of lakes were 196 days and 181 days, respectively. (2) The. phenology of lake ice in the Hoh Xil region changed dramatically in the last 10 years. Specifically, the FUS and FUE time of lake ice showed an increasingly delaying trend. In contrast, the BUS and BUE time of lake ice presented an advance. This led to the reduction of the ID and CID of lake. The average rates of ID and CID were -2.21 d/a and -1.91 d/a, respectively. (3) The variations of phenology and evolution of lake ice were a result of local and climatic factors. The temperature, lake area, salinity and shape of the shoreline were the main factors affecting the phenology of lake ice: However, the other factors such as the thermal capacity and the geological structure of lake should not be ignored as well. (4) The spatial process of lake ice freeze-up was contrary to its break-up process. The type of lake ice extending from one side of lakeshore, to the opposite side was the most in the Hoh Xil region.
收录类别SCI
WOS关键词TEMPERATURE-CHANGES ; CLIMATE-CHANGE ; BREAK-UP ; COVER ; VARIABILITY ; CANADA ; ALASKA
WOS研究方向Physical Geography
WOS类目Geography, Physical
语种英语
出版者SCIENCE PRESS
WOS记录号WOS:000366952500006
URI标识http://www.irgrid.ac.cn/handle/1471x/2557155
专题寒区旱区环境与工程研究所
通讯作者Yao Xiaojun
作者单位1.Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China
2.Lanzhou Resources & Environm Voc Tech Coll, Lanzhou 730021, Peoples R China
3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryosphere Sci, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Yao Xiaojun,Li Long,Zhao Jun,et al. Spatial-temporal variations of lake ice phenology in the Hoh Xil region from 2000 to 2011[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2016,26(1):70-82.
APA Yao Xiaojun.,Li Long.,Zhao Jun.,Sun Meiping.,Li Jing.,...&An Lina.(2016).Spatial-temporal variations of lake ice phenology in the Hoh Xil region from 2000 to 2011.JOURNAL OF GEOGRAPHICAL SCIENCES,26(1),70-82.
MLA Yao Xiaojun,et al."Spatial-temporal variations of lake ice phenology in the Hoh Xil region from 2000 to 2011".JOURNAL OF GEOGRAPHICAL SCIENCES 26.1(2016):70-82.

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来源:寒区旱区环境与工程研究所

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