Abstract
The current study was conducted as a response to the need for clarifies the influence that Rokko Mountains give to the water depth of the Toga River using information from the iRIC program and rainfall observation results during the local concentrated heavy rain.
The water depth using information from the iRIC program for only an urban area in Kobe city is the almost same as the rainfall observation results.
Our information results from iRIC program showed that rainwater infiltrated the ground of Rokko Mountains during the local torrential rain.