中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Application of a Degree-Day Model for Determination of Mass Balance of Urumqi Glacier No. 1, Eastern Tianshan, China

文献类型:期刊论文

作者Wu, Lihua1,2; Li, Huilin1; Wang, Lin1
刊名JOURNAL OF EARTH SCIENCE
出版日期2011-08-01
卷号22期号:4页码:470-481
关键词Urumqi Glacier No. 1 degree-day model mass balance
ISSN号1674-487X
DOI10.1007/s12583-011-0201-x
通讯作者Wu, Lihua(wulhmail@163.com)
英文摘要In order to verify the feasibility and stability of a degree-day model on simulating the long time series of glacier mass balance, we apply a degree-day model to simulate the mass balance of Urumqi Glacier No. 1 for the period 1987/1988-2007/2008 based on temperature and precipitation data from a nearby climate station. The model is calibrated by simulating point measurements of mass balance, mass balance profiles, and mean specific mass balance during 1987/1988-1996/1997. The optimized parameters are obtained by using a least square method to make the model fit the measured mass balance through the model calibration. The model validation (1997/1998-2007/2008) indicates that the modeled results are in good agreement with the observations. The static mass balance sensitivity of Urumqi Glacier No. 1 is analyzed by computing the mass balance of the glacier for a temperature increase of 1 degrees C, with and without a 5% precipitation increase, and the values for the east branch are -0.80 and -0.87 m w.e. a(-1).degrees C(-1), respectively, and for the west branch, the values are -0.68 and -0.74 m w.e. a(-1).degrees C(-1), respectively. Moreover, the analysis of the parameter stability indicates that the parameters in the model determined from the current climate condition can be applied in the prediction of the future mass balance changes for the glacier and provide a reference for extending the model to other small glaciers in western China.
收录类别SCI
WOS关键词ENERGY-BALANCE ; SEA-LEVEL ; ICE ; SENSITIVITY ; GREENLAND ; ABLATION ; NORWAY ; SNOW ; MELT ; ASIA
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
语种英语
WOS记录号WOS:000293450800006
出版者CHINA UNIV GEOSCIENCES
URI标识http://www.irgrid.ac.cn/handle/1471x/2556481
专题寒区旱区环境与工程研究所
通讯作者Wu, Lihua
作者单位1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Tianshan Glaciol Stn, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Wu, Lihua,Li, Huilin,Wang, Lin. Application of a Degree-Day Model for Determination of Mass Balance of Urumqi Glacier No. 1, Eastern Tianshan, China[J]. JOURNAL OF EARTH SCIENCE,2011,22(4):470-481.
APA Wu, Lihua,Li, Huilin,&Wang, Lin.(2011).Application of a Degree-Day Model for Determination of Mass Balance of Urumqi Glacier No. 1, Eastern Tianshan, China.JOURNAL OF EARTH SCIENCE,22(4),470-481.
MLA Wu, Lihua,et al."Application of a Degree-Day Model for Determination of Mass Balance of Urumqi Glacier No. 1, Eastern Tianshan, China".JOURNAL OF EARTH SCIENCE 22.4(2011):470-481.

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来源:寒区旱区环境与工程研究所

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