Statistical and hydrological evaluation of hourly IMERG over Ganjiang River basin

IMERG performs well in the hydrological simulation based on Gauge- and RQPE-calibrated parameter sets

Both IMERG and RQPE can estimate precipitation adequately, but RQPE outperforms IMERG

The streamflow simulated by rain gauge-interpolated data has the highest NSCE value

RQPE outperforms Gauge-based precipitation and hourly IMERG in all validation scenarios