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《Journal of Glaciology and Geocryology》 1983-03
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Snow Avalanche in Bogda Region, Tian Shan

Qiu Jiaqi ( Xinjiang Institute of Geography, Acadimia Sinica ) Deng Yangxin ( Lanzhou Institute of Glaciology and Cryopedology, Academia Sinica )  
Bogda area is famous for avalanche, which spreads widely and frequently with unusually enormous scale in the Eastern Tian Shan. The basins of two glaciers No. 5Y725D5 and 5Y812B10 on the northwestern slope of Bogda were taken as example to study avalanche in its vicinal area. This paper deals with the problems of avalanche in these two basins, including formation conditions, features,etc. The conditions, that the high mountains are dissected intensely by a lot of nivation funnels, denudation hollows, horns and cliffs combined with a higher precipitation than usual in the Eastern Tian Shan, are suitable for snow accumulation and occurrance of snow slide and large scale intensive avalanche. The vertical height of the fall of avalanche may reach 1500 m and the length of path of avalanche as long as 2500 m. Avalanche in these basins is one of the main sources for glacial nourishment and takes part in the geomorphologic processes for surface erosion, denudation, debris transfer and deposition. Some landforms relative to avalanche were produced in these basins. The dangerous period of avalanche covers all the year round and avalanche is frequent in warm season either during or after snowfall. The confined and jumping avalanches are the prevailing types and the unconfined avalanche is few in number. The density of avalanche path, path length and vertical fall of avalanche in these basins are the biggest in the Eastern Tian Shan. Viewed from the angle of dangerous duration of avalanche, the range of avalanche action and avalanche dynamic features, these basins are considered as the most dangerous areas for avalanche in the Tian Shan, China.
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【References】
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Chinese Journal Full-text Database 1 Hits
1 Deng Tangxin (Lanzhou Institute of Glaeiology and Cryopedology, Academia Sinica);SNOW AVALANCHE IN GUXIANG REGION OF XIZANG ANDITS ROLE IN THE PHYSICAL GEOGRAPHIC PROCESSESOF HIGH MOUNTAINS[J];Acta Geographica Sinica;1980-03
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Qiu Guoqing ( Lanzhou Institute of Glaciology & Cryopedology, Academia Sintca );ON ENGINEERING GEOLOGICAL SURVEY IN ALPINE PERMAFROST REGIONS OF WEST CHINA[J];Journal of Glaciology and Geocryology;1980-03
2 Zhou Youwu, Guo Dongxin (Lanzhou Institute of Glaciology and Cryopedology, Academia Sinica);PRINCIPAL CHARACTERISTICS OF PERMAFROST IN CHINA[J];Journal of Glaciology and Geocryology;1982-01
3 Xu Xiaozu, Guo Dongxin ( Lanzhou Institute of Glaciology and Cryopedology, Academia Sinica );COMPILATION OF THE DISTRIBUTION MAPOF FROZEN GROUND 1:4,000,000 IN CHINA[J];Journal of Glaciology and Geocryology;1982-02
4 Wang Yanlong ( Lanzhou Institute of Glaciology and Cryopedology, Academia Sinica );METAMORPHISM OF SEASONAL SNOW COVER IN THE UPPER REACHES OF YILIHE IN TAIN SHAN[J];Journal of Glaciology and Geocryology;1982-02
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9 ;Snow Damages to the Highway from Zongdian to Deqin. Yunnan Province, and Their Control[J];Journal of Glaciology and Geocryology;1987-S1
10 Zhu Zhenda (Lanzhou Institute of Desert Research, Academia Sinica);THIRTY YEARS IN RESEARCH WORKS ON CHINESE SANDY DESERTS[J];Acta Geographica Sinica;1979-04
China Proceedings of conference Full-text Database 3 Hits
1 Jin Songqiao Zhang Guowei Li Zhenxi Jiang Yuejian;THE QILIANSHAN-LULIANGSHAN-HELANSHAN E-TYPE TECTONIC SIMULATION AND THE STRESS FIELD ANALYSIS[A];[C];1983
2 Liu Hongbin (Graduate School,Chinese Academy of Geological Sciences);ON THE ORIGIN AND EVOLUTION OF THE ZOUPING CALDERA IN THE YI-SHU PALEORIFT SYSTEM[A];[C];1986
3 Liu Bo (Chengdu College of Geology);THE LONGITUDINAL AND LATITUDINAL SETS OF EPSILON-TYPE STRUCTURAL SYSTEMS IN ASIA REGIONS,AND ITS SIGNIFICANCE[A];[C];1987
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