Annual 30 m dataset for glacial lakes in High Mountain Asia from 2008 to 2017

Abstract. Atmospheric warming is intensifying glacier melting and glacial-lake development in High Mountain Asia (HMA), this could increase outburst flood (GLOF) hazards impact water resources hydroelectric-power management. There therefore a pressing need to obtain comprehensive knowledge of the distribution area glacial lakes also quantify variability their sizes types at high resolution HMA. In work, we developed an HMA inventory (Hi-MAG) database characterize annual coverage from 2008 2017 30 m using Landsat satellite imagery. Our data show that exhibited total 90.14 km2 period 2008–2017, +6.90 % change relative (1305.59±213.99 km2). The increases number were 306 12 km2, respectively, greatest occurred 5400 elevation, which increased by 249. Proglacial-lake-dominated areas, such as Nyainqêntanglha central Himalaya, where more than half (summed over 1? × grid) consisted proglacial lakes, showed obvious lake-area expansion. Conversely, some regions eastern Tibetan mountains Hengduan Shan, unconnected occupied lake each grid, stability or slight reduction area. results demonstrate are main contributor recent evolution HMA, accounting for 62.87 (56.67 km2) increase. Proglacial Himalaya ranges alone accounted 36.27 (32.70 Regional geographic debris cover, together with trends precipitation past few decades, largely explains current supraglacial- proglacial-lake across Hi-MAG available https://doi.org/10.5281/zenodo.4275164 (Chen et al., 2020), it can be used studies complex interactions between glaciers, climate GLOFs, resources.