Device and method for estimating occurrence distribution of unascertained water and recording medium

摘要

On the basis of rainfall amount data ( 24 ) representing a time-series change in the amount of rainfall in a district as an estimation target and unascertained water amount data ( 23 ) representing a time-series change in the amount of unascertained water at a base point located downstream of each district, an unascertained water occurrence distribution estimating means ( 12 ) of a control unit ( 10 ) calculates a correlation value between the rainfall amount data ( 24 ) in each district and the unascertained water amount data ( 23 ), and outputs each correlation value as an unascertained water occurrence distribution in each district.