%0 Dataset %T Hydrological and Geomorphic Unit Hydrological Map Dataset of the Qinghai Tibet Plateau Basin %J National Cryosphere Desert Data Center %I National Cryosphere Desert Data Center(www.ncdc.ac.cn) %U http://www.ncdc.ac.cn/portal/metadata/4af5f9c2-579b-4045-95ba-a1a3eebd440c %W NCDC %R 10.5281/zenodo.7965233 %A Yang Yuting %K Qinghai Tibet Plateau;Hydrological and Geomorphological Dataset;Hydrogeological Indicators;WFIUH %X Hydrological and geomorphological processes are intricately linked in the Earth system, collectively describing land hydrological behavior and biogeochemical cycles at different temporal and spatial scales. The Qinghai Tibet Plateau provides an ideal environment for studying the interaction between hydrological and geomorphological processes in the basic primitive natural environment. However, due to challenging physical conditions and data limitations, these interactions are still largely unknown. This study presents for the first time a hydrological and geomorphological dataset covering 18440 watersheds in the region. The dataset includes 18 hydrogeological indicators, particularly the width function of each watershed and the instantaneous unit hydrological map (WFIUH) based on the width function. We found that the peak flow of WFIUH is positively correlated with slope and curvature, but negatively correlated with watershed area, perimeter, length, and roundness. The relationship between peak time and hydrogeological indicators is similar to peak flow, but in the opposite direction. The concentration time of water collection is positively correlated with the water collection area, but strongly negatively correlated with the water collection slope. The effectiveness of the obtained WFIUH has been confirmed by successfully integrating it into hourly hydrological models simulating flash flood events. The uncertainty of WFIUH can be attributed to the resolution of DEM and the method of calculating flow velocity.