Worldwide 1 min rain rate distribution prediction method which uses thunderstorm ratio as regional climatic parameter

For the prediction of rain attenuation distributions, it is necessary to determine the 1 min rain rate distributions. A new worldwide prediction method for the 1 min rain rate is proposed. This new method uses the average annual total rainfall and the thunderstorm ratio, and it is possible to estimate the 1 min rain rate distribution for an arbitrary percentage of time. It is shown that significant improvements in terms of prediction error over existing methods are obtained.