Predicting Tropical Monsoon Hydrology Using CFSR and CMADS Data over the Cau River Basin in Vietnam

To improve knowledge of this matter, the potential application two gridded meteorological products (GMPs), China Meteorological Assimilation Driving Datasets for SWAT model (CMADS) and Climate Forecast System Reanalysis (CFSR), are compared first time with data from ground-based stations over 6 years, 2008 to 2013, Cau River basin (CRB), northern Vietnam. Statistical indicators Soil Water Assessment Tool (SWAT) employed investigate hydrological performances GMPs against 17 rain gauges distributed across CRB. The results show that there strong correlations between temperature reanalysis in both CMADS CFSR those obtained observations (the correlation coefficients range 0.92 0.97). overestimate precipitation (percentage bias approximately 99%) at daily monthly scales, whereas product performs better, obvious differences (compared observations) high-terrain areas. Regarding simulated river flows, CFSR-SWAT produced “unsatisfactory”, while CMADS-SWAT (R2 > 0.76 NSE 0.78) better than on scale. This assessment applicative GMPs, especially CMADS, may further provide an additional rapid alternative water resource research management basins similar hydro-meteorological conditions.