Title Variations of glacial lakes and glaciers in the Boshula mountain range, southeast Tibet, from the 1970s to 2009
Author Wang Weicai; Yao Tandong; Yang Xiaoxin
Author Affil Wang Weicai, Chinese Academy of Sciences, Institute of Tibetan Plateau Research, Key Laboratory of Tibetan Environment Changes and land Surface Processes, Beijing, China. Other: Chinese Academy of Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, China; Graduate University of the Chinese Academy of Sciences, China
Source Annals of Glaciology, 52(58), p.9-46, . Publisher: International Glaciological Society, Cambridge, United Kingdom. ISSN: 0260-3055
Publication Date 2011
Notes In English GeoRef Acc. No: 310217
Index Terms precipitation (meteorology); climatic change; dams; flooding; glacial lakes; glaciers; ice dams; lakes; LANDSAT; remote sensing; temperature; Asia--Tibetan Plateau; China--Xizang; Asia; atmospheric precipitation; Boshula Mountains; China; climate change; deglaciation; Far East; floods; geologic hazards; glacial features; glacier recession; jokulhlaups; Landsat; monitoring; moraines; natural dams; natural hazards; temporal distribution; thematic mapper; Tibetan Plateau; Xizang China
Abstract Catastrophic floods originating from glacial lake outbursts have recently become one of the primary natural hazards in the southeastern Tibetan Plateau. Here we report observations of glacial lake expansions and glacier recessions in the Boshula mountain range, southeast Tibet, derived from multitemporal remote-sensing images and digital elevation models during the period from the 1970s to 2009. The area of glacial lakes has expanded from 9.240.1 km2 in the 1970s to 10.960.1 km2 in 2009. Specifically, the area of moraine-dammed lakes has increased by 26.8%. From the 1970s to 2009, the glacierized area in the Boshula mountain range shrank by 12.7% (21.2 km2). Increasing mean summer air temperature was the main cause for the glacier recession and lake expansion from the 1970s to 2001, while the combination of increased summer temperature and decreased summer precipitation led to accelerated glacier recession after 2001. Climate warming and ongoing deglaciation play important roles in the expansion of moraine- dammed lakes, calling for intensified monitoring to properly address the hazard potential in the study area.
URL http://www.igsoc.org/annals/v52/58/a58a069.pdf
Publication Type journal article
Record ID 65007346