Validation of high-resolution satellite rainfall products over complex terrain

摘要: High-resolution satellite rainfall products, at daily accumulation and 0.25° spatial resolution, are evaluated using station networks located over two different parts of Africa. The first site is Ethiopia with a very complex terrain. second site, Zimbabwe, has less rugged topography. products the NOAA-CPC African estimation algorithm (RFE), TRMM-3B42, CPC morphing technique (CMORPH), PERSIANN, Naval Research Laboratory's blended product. These perform reasonably well both regions in detecting occurrence rainfall. However, performances poor estimating amount each pixel. correlation coefficients low random errors high. performance was better Zimbabwe as compared Ethiopia. Comparing CMORPH TRMM-3B42 showed Ethiopia, while RFE, CMORPH, preformed relatively Zimbabwe.