IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2010  > Vol7 No.4
Identification of ice elevation change of the Shuiguan River No. 4 glacier in the Qilian Mountains, China
Li Jing; Liu Shiyin; Shangguan Donghui; Zhang Yinsong
Corresponding AuthorLiu, SY
2010-12
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
Volume7Issue:4Pages:375–379
AbstractGPS measurement, an effective method for surveying glacier surface topography, has been applied in some glaciers for many years. The Shuiguan River No. 4 glacier, a small glacier with its area of 1.84 km(2) in 1972, located in the east of the Qilian Mountains, China, was selected to study its ice elevation change using GPS measurement in 2007. This study was conducted on the ablation area with GPS-measured area 0.5 km(2). The ice elevation change of the glacier was obtained by comparing the DEM obtained by a 1:50 000 topographic map made in 1972 with the DEM by GPS-measured data acquired in 2007. The differences of the two DEMs showed the thinning condition of the glacier was apparent. The mean thinning was 15 +/- 8 m with the mean thinning rate of 0.42 +/- 0.22 m a(-1) for 1972-2007 in the measurement area, which equaled 0.38 +/- 0.20 m yr(-1) in water equivalent (w.e.). The prominent thinning occurred on the south part of the glacier, which was the area near the glacier terminus with the maximum thinning of 41 +/- 8 m. Assuming the thinning value of 15 +/- 8 m for the glacier area below 4640 m a.s.l., the wasting ice mass was calculated to be 6.4 +/- 3.2x10(-3) km(3) for 1972-2007, corresponding to 5.7 +/- 2.8x10(-3) km(3) w.e., which meant that the montane runoff released by the glacier was at least 5.7 +/- 2.8x10(6) m(3) between 1972-2007.
KeywordGps Rtk Dem Glacier Mass Balance Mountane Runoff
Language英语
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5905
CollectionJournal of Mountain Science_Journal of Mountain Science-2010_Vol7 No.4
Recommended Citation
GB/T 7714
Li Jing,Liu Shiyin,Shangguan Donghui,et al. Identification of ice elevation change of the Shuiguan River No. 4 glacier in the Qilian Mountains, China[J]. JOURNAL OF MOUNTAIN SCIENCE,2010,7(4):375–379.
APA Li Jing,Liu Shiyin,Shangguan Donghui,&Zhang Yinsong.(2010).Identification of ice elevation change of the Shuiguan River No. 4 glacier in the Qilian Mountains, China.JOURNAL OF MOUNTAIN SCIENCE,7(4),375–379.
MLA Li Jing,et al."Identification of ice elevation change of the Shuiguan River No. 4 glacier in the Qilian Mountains, China".JOURNAL OF MOUNTAIN SCIENCE 7.4(2010):375–379.
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