Kinetic energy of rain and its functional relationship with intensity

摘要: Abstract The rain kinetic energy (KE) is a widely used indicator of the potential ability to detach soil. However, not commonly measured meteorological parameter. Therefore, empirical laws linking more easily available intensity (I) have been proposed based on drop-size and drop-velocity measurements. various mathematical expressions relate from literature are reported in this study. We focus our discussion two used: expended per volume or volume-specific (KEmm, J m−2 mm−1) rate time-specific (KEtime, J m−2 h−1). use statistical micro-physical considerations demonstrate that KEtime most appropriate expression establish an law between intensity. Finally, considering existing distribution models literature, we show suitable function link KE I power law. constants related type, geographical location measurement technique.