Characteristics of mountain glacier surge hazard: learning from a surge event in NE Pamir, China
文献类型：期刊论文
| 作者 | Yao, Xin; Iqbal, Javed; Li, Ling-jing; Zhou, Zheng-kai |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2019 |
| 卷号 | 16期号:7页码:1515-1533 |
| 关键词 | Glacier surges Moraine Glacier hazards Mountain glacier Glacier monitoring Offset-tracking SAR |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-018-5282-x |
| 文献子类 | Article |
| 英文摘要 | Abnormal 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. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000474574600003 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/46529]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.7 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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