Bias correction and spatial disaggregation of satellite-based data for the detection of rainfall seasonality indices
Like many other African countries, Ghana’s rain gauge networks are rapidly deteriorating, making it challenging to obtain real-time rainfall estimates. In recent years, real-time satellite precipitation products (SPPs) development and accessibility have advanced significantly. SPPs may compliment or substitute gauge data, enabling better real-time forecasting of streamflows among other things. SPPs, on the other hand, contain considerable biases that must be addressed before the rainfall predictions can be applied to any hydrologic purpose, including seasonal or real-time forecasts.