Karayaylak Glacier (38°35′6″N–38°44′48″N, 75°7′47″E–75°22′29″E) is located in the northern slope of Jiubie Peak of Kongur Mountains, eastern Pamir, China. Its surge in May 2015 caused property losses to local residents. Monitoring and analysis of the surged glacier has important practical significance for exploring the glacier surge mechanism and for establishing a disaster early-warning mechanism. Based on Landsat images, this study obtained the surface velocities of Karayaylak Glacier from April 13, 2015 to July 11, 2015 by using feature-tracking method. With a spatial resolution of 240 m, the obtained data were stored in 32-bit floating point GeoTiff format. A statistical analysis indicates that the results have an overall accuracy of less than ± 0.42 m d-1. Its elevation change between 2013 and 2015 was also obtained from ASTER-derived DEM. With a spatial resolution of 240 m, the data were stored in 32-bit floating point GeoTiff format. A statistical analysis of the residual error in non-glacial areas indicates that the results have an overall accuracy of about ± 0.7 m. The dataset can serve as the basis for investigating surged glaciers in this region, or as input data for building glacier dynamic models. It provides statistical support for glacier surge research. In addition, the dataset not only supports further research in risk assessment and the early warning of glacier disasters, but also ensures the economic and social development of the China–Pakistan Economic Corridor.
