Study on Characteristics of Water Resources in Western Japan (2nd Report) : Distribute Parts of Rainfall in Cold Season in Kyushu to the Water Resources

From the annual variation of water budget for small basin in the upstream part of the Chikugo River, we pointed out the rainfall in cold season is important for water resources and also showed the mechanism of snow fall in Kyushu. We refered to the availability of man-made ice fog for the artificial increase of precipitation in cold season and described that the soft rime holds pretty important position as the rainfall for the water resources. We will go a step farther the theoretical and experimental basic research and also investigate economic problem about the scattering of AgI over the basin.