SM2RAIN CHINA: 1 km rainfall estimation for CHINA region derived from SMCI Soil Moisture (2000-2020)

SM2RAIN-SMCI provides rainfall estimates for the whole CHINA at 1 km/daily spatial resolution by applying SM2RAIN algorithm (Brocca et al., 2014; 2019) to Soil Moisture data from SMCI Soil moisture (https://doi.org/10.5194/essd-14-5267-2022) for the period from January 2000 to December 2020 (21 years). The SM2RAIN-SMCI rainfall dataset (in mm/day) is provided over a regular grid at 0.01-degree sampling. The product represents the accumulated rainfall between the 00:00 and the 23:59 UTC of the indicated day. The uncalibrated SM2RAIN version (https://doi.org/10.5194/hess-26-2481-2022) was adopted to obtain rainfall. Precipitation data from HRLT (https://doi.org/10.5194/essd-14-4793-2022) were adopted to obtain mean climatology.

The rainfall dataset is provided in NetCDF format. To simplify data access, the CHINA region is divided in 101 subregion containing 540 (longitude) * 360 (latitude) pixels each.