Abstract
Air pollution transported from Tokyo Bay area is considered as one of main causes of the forest decline observed in the north Kanto mountainous area. It is important to account fog occurrence to evaluate wet deposition of air pollutants in forest area if acid fog is frequently observed in there. In this study we used The Regional Atmospheric Modeling System (RAMS) to simulate fog formation process and estimated detailed distribution of accumulated fog water quantity (AFWQ) in Nikko area. The results suggest that the geographical factor affects the distribution of AFWQ significantly and AFWQ is substantially different even in same altitude.
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