遥感和GIS在冰湖溃决洪水中的应用研究

近年来随着全球气候变暖和冰川退缩,以及人类在高海拔地区活动的增多,冰湖溃决洪水灾害呈增加趋势。由于遥感和GIS技术的众多优势,使其在冰湖溃决洪水研究方面得到广泛应用。首先对冰湖溃决洪水及其研究做简单介绍,然后从冰川、冰湖空间数据获取,冰湖溃决评价指标获取,冰湖溃决洪水模拟和DEM的建立及应用4个方面对遥感和GIS在冰湖溃决洪水研究中的应用进行综述,最后指出,目前遥感和GIS在冰湖溃决洪水应用中的不足,为进一步研究和应用指明了方向。

An Application Research of Remote Sensing and GISi n Glacial Lake Outburst Flood Hazards

Abstrca t:With the atmospheric warming and glacier retreating in recent years, GLOF ( Glacial Lake Outburst Flood) hazards are in-creasingly threatening people ( s life and property.Researches on GLOFs have made great progress.Because of many advantages of Re-mote Sensing and GIS, they are used widely in GLOFs which situate in inaccessible high-mountain regions.At first, this paper sim-ply introduces GLOF hazards and researches on it .Then it provides an overview about the application of Remote sensing and GIS in GLOF hazards from mapping of glacier and glacial lake, Acquisition of candidate indexes for glacial lake risk assessment, Glacial lake outburst modeling as well as generation and use of remote sensing-derived DEMs.Finally, the paper outlines insufficiency of applica-tion of Remote Sensing and GIS in GLOF hazards, which help us focus on researches about Remote Sensing and GIS for better using them in GLOF hazards.