Establishment and Application of Drainage Warning Rainfalls
Establishment of warning rainfalls at inundation-prone area needs to consider the influence of downstream river water level, previous rainfall, real-time rainfall, and 1-2 hour lead-time rainfall estimated by QPESUMS. Increase of rescue time and decrease of inundation damage can be achieved through the establishment of the warning rainfalls.
Flow chart of establishing drainage warning rainfalls