Prediction device rainfall amount prediction method, and recording medium, slope collapse prediction system and dangerous water level prediction system

Abstract

A rainfall amount prediction device includes: a first prediction unit creating a first prediction pattern, and calculating a first total rainfall amount that is the total rainfall amount in the first period according to the first prediction pattern; a second prediction unit determining a second total rainfall amount that is the total rainfall amount in a second period by subtracting the first total rainfall amount from the entire total rainfall amount, and creating, under the limitations of the second total rainfall amount, and a pattern creation unit creating a plurality of rainfall prediction patterns for the entirety of the prediction period by combining, on a time axis, the first prediction pattern and the plurality of second prediction patterns.