67 results about "Runoff coefficient" patented technology

The invention discloses a reservoir scheduling early warning method based on meteorological numerical forecasting, which comprises the following steps: calculating the interceptable water storage capacity in a basin according to the acquired hydrological information of each hydropower station in the basin of a target reservoir, and correcting the early-stage influence rainfall Pa according to theinterceptable water storage capacity; determining a runoff coefficient rho according to the hydrological information and the meteorological information, calculating the capacity storage purified wateramount and the capacity storage precipitation amount of the reservoir based on the runoff coefficient rho, and carrying out capacity storage precipitation amount early warning; according to the hydrological information, the drainage basin information, the early-stage influence rainfall Pa, the runoff coefficient rho and the meteorological information, short-term period runoff prediction of the reservoir is conducted, and the medium-term and long-term end water level is calculated; and determining a flood prevention early warning level and a drought resistance early warning level according tothe hydrological information, the meteorological information and the end-of-period water level information, and performing reservoir scheduling. The reservoir scheduling early warning method has the advantages that the reservoir scheduling risk early warning capacity is improved, and life and property safety of reservoir dams and downstream people is ensured.