Precipitation estimation device, precipitation estimation method, and computer program

Claims

1. An acquisition means for acquiring soil moisture information, which is the amount of moisture contained in the soil at the location to be estimated, measured using a soil moisture sensor installed at the location to be estimated for precipitation estimation, An estimation means for estimating precipitation at the target location using information on the temporal change in soil moisture content based on soil moisture content information, An output means that outputs information on estimated precipitation amounts. A precipitation estimation device equipped with [a specific feature].

2. The location of the aforementioned estimation is a field. The estimation means also uses information on the amount of water absorbed by crops grown in the location to be estimated from the soil to estimate the amount of rainfall in the location to be estimated. The precipitation estimation device according to claim 1.

3. The output means outputs soil moisture information used for estimating precipitation, relating it to precipitation information. The precipitation estimation device according to claim 1.

4. The acquisition means further acquires weather information at the location of the estimated target, The estimation means estimates the amount of rainfall at the location to be estimated using the crop water absorption information adjusted using the acquired weather information. The precipitation estimation device according to claim 2.

5. The output means outputs to a device that calculates the amount of water to be supplied to the estimated location for irrigation using rainfall information. The precipitation estimation device according to claim 2.

6. The location to be estimated is a field containing soil having a plurality of layered structures, The estimation means estimates the precipitation using information on the temporal change in the topsoil moisture content based on the soil moisture content information, the amount of water absorbed by the crop calculated using a crop coefficient and the distribution ratio of crop roots according to the type and growth stage of the crop being cultivated in the field, the amount that flowed from the topsoil to the layer below, and the amount of water that flowed without seeping into the topsoil. The precipitation estimation device according to claim 1.

7. By computer, Soil moisture information is obtained as soil moisture information, which is the amount of water contained in the soil at the location to be estimated, measured using a soil moisture sensor installed at the location to be estimated. Using information on the temporal changes in soil moisture content based on soil moisture content data, the amount of precipitation at the target location is estimated. Output estimated precipitation information. Precipitation estimation method.

8. A process to acquire soil moisture information, which is the amount of water contained in the soil at the location to be estimated, measured using a soil moisture sensor installed at the location to be estimated for precipitation estimation, and A process for estimating precipitation at the target location using information on the temporal changes in soil moisture content based on soil moisture content information, A process to output information on estimated precipitation. A computer program that causes a computer to execute something.