%0 Dataset
%T Permafrost map of the Tarim Basin  for 2005–2020
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/914f64a5-85ee-4f71-8d80-100aca73022e
%W NCDC
%R 10.12072/ncdc.peramcarbon_tarim.db7026.2025
%A Guofei Zhang 
%K Tarim Basin;permafrost mapping;TTOP model;remote sensing;climate change
%X Permafrost distribution maps are fundamental datasets for studying hydrological processes, ecosystem stability, and land–atmosphere interactions in cold regions. However, due to the sparse distribution of observation stations and the high heterogeneity of terrain, high-resolution permafrost data for the Tarim Basin have long been lacking. To address this gap, this study established an overall framework for mapping permafrost distribution in the Tarim Basin. First, missing TRIMS LST data were reconstructed using ordinary kriging interpolation corrected by a digital elevation model (DEM). Second, an empirical GST–LST model was developed by regressing daily mean ground surface temperature (GST) observed at stations against four instantaneous LST observations, enabling the estimation of daily mean GST across the basin and the subsequent calculation of the degree of freezing (DDF) and thawing (DDT) indices. Based on these results, permafrost distribution was simulated using the TTOP model combined with the rₖ factor. Finally, the simulated permafrost maps were validated using subregional survey maps and borehole data from the Aerjin and Western Kunlun subregions and compared with widely used Northern Hemisphere permafrost products (Obu and Ran maps).The resulting dataset exhibits high spatial accuracy within the Tarim Basin, with Kappa coefficients of 0.84 and 0.52 and overall accuracies (OA) of 0.97 and 0.87 in the Western Kunlun and Aerjin subregions, respectively, significantly outperforming the reference products. The dataset includes spatial types of permafrost and seasonally frozen ground, as well as glaciers and lakes, covering the entire Tarim Basin at a spatial resolution of 1 km. Compared with existing Northern Hemisphere permafrost products, this dataset provides essential data support for studies of permafrost dynamics, freeze–thaw hazard assessment, hydrological modeling, and climate change impacts in the Tarim Basin.