Abstract: Global warming leads to accelerated glacier melting rates, which increases glacier hazard events such as glacier collapse, glacial lake outburst flood, glacier landslide etc. Therefore, rapid glacier disaster information extraction is of great significance for hazard protection and emergency rescue. The unmanned aerial vehicle(UAV) provides a quick response, low cost and high resolution remote sensing technology for disaster surveying and dynamic monitoring in complex terrain environments. Since May 2015, the continuous glacier surging in the Jiubie Peak of Kongur Mountains, Aketao County, Xinjiang, China, leads to property losses and potential geological hazards. As the data quality of high-resolution satellite images does not meet the requirements of glacier disaster investigation, in this paper, UAV photogrammetry is used to map the glacier surging area, and hazard information such as destroyed houses, landslides, barrier lakes and changing glacier volumes are investigated and evaluated with the field data. The results showed that, UAVs perform well on precise mapping and comprehensive investigation of hazard information. The glacier in the north slope of Jiubie Peak in Kongur Mountains is surging in a rapid rate since February 2015, and it uplifts quickly by collision and extrusion of another glacier developed from the north slope of Kongur Peak in the Kongur Mountains. Many rocks and ice blocks in the raising glacier drop off and hit the houses around the moraines, and about 16 houses are destroyed, 3 landslides are found near the glacier bends. The uplifted glaciers are cracked under great pressure into ice crevasses, and 6 barrier lakes are formed in low-lying areas. Compared with terrain map in 2007, the glacier surging area has an extent of 7.27km², and the uplift height is increasing from the upstream to downstream, the average uplift height is 32.3 m, and the maximum figure is 97.70m, the increased glacier volume in the glacier surging region has an area of 3.25×10⁹ m³. The paper firstly used UAV as a test to investigate glacier hazard loss, providing accurate geographic information for government's loss evaluation and rescue decision making. Although the damage loss caused by this glacier hazard event is relatively minor, the glacier is still in a state of rapid movement, and the risk of potential hazard is increasing. Hence, glacier surging, icefalls and barrier lakes need intensive studies in future.

Key words: glacier surging, unmanned aerial vehicle, hazard emergency monitoring, Jiubie Peak of Kongur Mountains