%0 Dataset
%T Surface Albedo data set on the Kanas Glacier during the Ablation Season in Altai Mountains (2009-2019)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/7a2557d6-e60f-41c5-8f7b-5aaa88286088
%W NCDC
%R 10.12072/ncdc.nieer.db2880.2023
%A None
%K Kanas Glacier;ablation period;albedo;Landsat
%X & emsp; Satellite remote sensing instruments cannot directly measure the surface albedo, but the radiation from the earth system including the ground and atmosphere in a certain direction. It is necessary to preprocess the original remote sensing data and calculate the surface broadband albedo. This data set is based on Landsat data, mainly through radiometric calibration, atmospheric correction, topographic correction, BRDF correction and narrow to wide band conversion methods, to retrieve the spatial distribution data of surface albedo during the ablation period of Kanas Glacier. The accuracy of remote sensing albedo results is verified by using the field measured albedo data, and the accuracy is high. In general, the surface albedo of glaciers in the ablation period shows an increasing trend with the increase of altitude, with the fastest growth near the middle of the glacier.& emsp; The data format is tiff. The file name is the acquisition time of the original remote sensing image, for example, 20090809 represents the data obtained on August 9, 2009. The data is dimensionless between 0 and 1. The coordinate system is WGM84.