A new daily gridded precipitation dataset based on gauge observations across mainland China

The new daily gridded precipitation dataset over mainland China (CHM_PR) is a long-term precipitation dataset with fine spatiotemporal resolution developed to facilitate the advancement of drought monitoring, flood forecasting, and hydrological modeling. Its record starts from 1961 and keeps updating yearly (currently up to 2021) with spatial resolutions of 0.5° × 0.5°, 0.25° × 0.25°, and 0.1° × 0.1°. Using daily observations from 2,839 gauges across China and nearby regions, the dataset was made through the daily climatology field combined with the precipitation ratio field algorithm that adjusted the climatology based on monthly precipitation constraint and topographic characteristic correction. <br> Global attributes: ·<strong> </strong>Variables = daily precipitation (pre) · Date format = NetCDF · Temporal Range = 1961-01-01 to 2021-12-31 · Spatial extent = 0.1° × 0.1°: 17.9°N–54.1°N, 71.9°E–136.1°E 0.25° × 0.25°: 17.75°N–54.25°N, 71.75°E–136.25°E 0.5° × 0.5°: 17.5°N–54.5°N, 71.5°E–136.5°E · Units = mm/day · Missing value = -99.9 <br>