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Characteristics of mountain glacier surge hazard: learning from a surge event in NE Pamir, China
Yao, Xin1; Iqbal, Javed2,3; Li, Ling-jing1; Zhou, Zheng-kai1
Corresponding AuthorYao, Xin(yaoxinphd@163.com) ; Iqbal, Javed(javediqbalgeo@gmail.com)
2019-07-01
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
Volume16Issue:7Pages:1515-1533
AbstractAbnormal glacier movement is likely to result in canyon-type hazards chain, such as the barrier lake of Yarlung Zangbo Grand Canyon formed by glacier debris flow in October 2018 in China. Glacier hazard usually evolves from the glacier surge and may occur in a regular cycle. Understanding the characteristics and process of glacier surge is important for early hazard recognition and hazard assessment. Based on field investigations, remote sensing interpretations and SAR offset-tracking surveys, this study confirms a typical glacier surge in the northeast Pamir, and presents its characteristics and processes. Black ice mixed moraines choking uplift and overflowing lateral marine are the most important scenic characteristics, which were formed under the conditions of stagnant glacier downstream and abundant super-glacial moraine. Glacier movement event can be divided into a five-period cycle including quiescent, inoculation, initiation, fracture and decline. This surge event lasted for about 300 days, initiated in February 2015 developed extensive fracturing zone in spring and early summer at maximum velocity of 10 +/- 0.95 m/day, declined after August 2015 and recovered to quiescent status in October 2015 for the next inoculation. The average height of glacier receiving area increased by 20-40 m with 2.7-3.6x10(8) m(3) ice transferred from glacier reservoir, and this volume accumulation again require 50-100 years for glacier mass balance which gives approximately 100 years frequency of the glacier surge. Nevertheless, long-period increase of precipitation and temperature were favorable for the occurrence, hydrological instability is the direct triggering mechanism, and while the Glacier Lake Outburst Flood (GLOF) hazards are unlikely to occur with this surge.
KeywordGlacier surges Moraine Glacier hazards Mountain glacier Glacier monitoring Offset-tracking SAR
DOI10.1007/s11629-018-5282-x
Indexed BySCI
WOS KeywordSATELLITE RADAR INTERFEROMETRY ; BERING GLACIER ; EASTERN PAMIR ; EVOLUTION ; TRACKING ; SYSTEM ; MOTION ; ALASKA ; VOLUME ; FLOW
Language英语
Funding ProjectNational Key R&D Program of China[2018YFC1505002] ; CGS Research Fund[JYYWF20181501] ; National Natural Science Foundation of China[41672359] ; Chinese Academy of Sciences President's International Fellowship Initiative[2018PC0009]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000474574600003
Funding OrganizationNational Key R&D Program of China ; CGS Research Fund ; National Natural Science Foundation of China ; Chinese Academy of Sciences President's International Fellowship Initiative
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26496
Collection中国科学院水利部成都山地灾害与环境研究所
Corresponding AuthorYao, Xin; Iqbal, Javed
Affiliation1.Chinese Acad Geol Sci, Inst Geomech, Key Lab Act Tecton & Crustal Stabil Assessment, Beijing 100086, Peoples R China
2.Abbottabad Univ Sci & Technol, Dept Earth Sci, Kpk 22010, Pakistan
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Sichuan, Peoples R China
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Yao, Xin,Iqbal, Javed,Li, Ling-jing,et al. Characteristics of mountain glacier surge hazard: learning from a surge event in NE Pamir, China[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(7):1515-1533.
APA Yao, Xin,Iqbal, Javed,Li, Ling-jing,&Zhou, Zheng-kai.(2019).Characteristics of mountain glacier surge hazard: learning from a surge event in NE Pamir, China.JOURNAL OF MOUNTAIN SCIENCE,16(7),1515-1533.
MLA Yao, Xin,et al."Characteristics of mountain glacier surge hazard: learning from a surge event in NE Pamir, China".JOURNAL OF MOUNTAIN SCIENCE 16.7(2019):1515-1533.
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