Water, Год журнала: 2024, Номер 16(22), С. 3183 - 3183
Опубликована: Ноя. 7, 2024
Recently, Integrated Multi-satellite Retrievals for the Global Precipitation Measurement (IMERG) mission and European Centre Medium-Range Weather Forecasts Reanalysis v5 (ERA5) precipitation datasets have been widely used in remote sensing atmospheric studies, respectively, because of their high accuracy. A dataset 268 site-gauge measurements over Yellow River Basin China was this study to comprehensively evaluate performance three high-resolution products, each with a spatial resolution 0.1°, consisting two satellite-derived datasets, IMERG multisource weighted-ensemble (MSWEP), one ERA5-derived dataset, ERA5-Land. The results revealed that distribution annual closely resembled observed rainfall generally exhibited downward trend from southeast northwest. Among had best at scale, whereas ERA5-Land worst due significant overestimation. Specifically, demonstrated highest correlation coefficient (CC) above 0.8 lowest BIAS root mean square error (RMSE), values most regions 24.79 mm/a less than 100 mm/a, presented RMSE exceeding 500 1265.7 CC below 0.2 regions. At season also across all four seasons, maximum 17.99 summer minimum 0.55 winter. Following IMERG, MSWEP data aligned observations entire area summer, southern spring winter, middle autumn. In addition, Kling–Gupta efficiency (KGE) 0.823 scale KGE (>0.77) seasons among products compared MSWEP, which KEG −2.718 −0.403, respectively. Notably, positive deviation both seasonal scales, other relatively smaller biases.
Язык: Английский