Patent Document ID: 9645283
Application ID: 14323276
Patent Flag: 1

Claim One:
1. A weather prediction apparatus comprising: communication circuitry configured to receive weather observation information observed by a weather radar at a first time interval, the weather observation information including precipitation information for each grid of a plurality of grids formed by dividing a prediction target area; a memory configured to store an observation value in each grid based on the weather observation information, the observation value including a physical quantity of a water substance; advection model calculation circuitry configured to set a first observation value as an initial value from the memory and perform predictive calculation for an advection of the water substance in each grid using an advection model for calculating a prediction value of the advection at a second time interval shorter than the first time interval; and advection model correction circuitry configured to correct the advection model by adding, every predetermined time, a correction value based on a difference between a second observation value obtained after the first observation value and the prediction value corresponding to an observation time of the second observation value, the correction value corresponding to a generation and disappearance amount of the water substance per unit time.