1967–2014年科西河流域面积≥0.05 km2冰湖轮廓数据集

There are many glaciers and glacial lakes in the Koshi River basin. The coverage rate of glaciers reaches 9.78% and the number of glacial lakes is 221. The distribution and change of glacial lakes in this area are the main factors for predicting the disaster of glacial lake outburst floods (GLOFs), and can also reflect the changes of climate and glacial water resources in Alpine frigid areas to a certain extent. The data set includes the glacial lake data of six periods in the Koshi River basin, i.e., 1960s, 1970s, 1980s, 1990s, 2000s and 2010s, which was obtained by visual interpretation using multi-source remote sensing image (Corona, Landsat MSS/TM/ETM+/OLI) and topographic maps during 1960s-2010s. Lying between 85°39'-88°95'E and 26°86'-29°14' N, the study area is composed of several sub basins including Indrawati, Sun Koshi, Tama Koshi, Likhu, Dudh Koshi, Arun and Tamor. The data set includes the vector of glacial lakes with an area above 0.05 km2 in the Koshi River basin. The data set has a long time series, which can be used as the basic data for the assessment of the temporal and spatial changes of glacial lakes and the changes of water volume of glacial lakes in the Koshi River basin. In addition, it can also be used as an important basis for the risk assessment of glacial lake outburst, the changes of water resources, climate change and the response relationship between glacial lakes and glaciers in this region.