Spatial distribution of air temperature in high-elevation glacierized regions: from observations in four catchments on the Tibetan Plateau - Dunde data
This dataset provides near-surface air temperature distributions (January–November 2019) over Dunde Glacier, a high-altitude glacier located on the northeastern Qinghai-Tibet Plateau near the Qilian Mountains. The temperature fields were derived from meteorological observations at five glacier stations, spatially interpolated and refined to 30 m resolution using Landsat 8 data as a geographic reference framework. Due to relatively high proportion of missing values, the Dunde data were gap-filled using Kriging interpolation. After applying Kriging interpolation followed by nearest-neighbor combined with triangular interpolation and smoothing, the maximum RMSE and SD values stayed under 1.6°C, with most cases below 0.5°C. Data graph visualizations of the errors between spatially interpolated temperatures and ground measurements were quantified using Root Mean Square Error (RMSE) of °C and standard deviation (SD) of °C, presented in the Temperature_Error Graphs (PDF format). The dataset serves as a reference for evaluating spatial interpolation accuracy in high-altitude cryospheric systems, supporting climate modeling, glacier mass balance studies, and environmental monitoring.
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Wang, Tianyun; Yang, Lu; Zhang, Deyuan; Zhou, Juncheng; Zhou, Tao; Song, Haolin (2025). Spatial distribution of air temperature in high-elevation glacierized regions: from observations in four catchments on the Tibetan Plateau. World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.26050/WDCC/HGR