Changes of glacier, glacier-fed rivers and lakes in Altai Tavan Bogd National Park, Western Mongolia, based on multispectral satellite data from 1990 to 2017

Bayartungalag Batsaikhan1, Ochirkhuyag Lkhamjav2 and Nandinbayar Batsaikhan2, (1)Mongolian Geo-spatial Association, Ulaanbaatar, Mongolia, (2)Mongolian Geospatial Association, Ulaanbaatar, Mongolia