三宅島噴火により生成された硫酸エアロゾルによる東アジアにおける沈着量増加の推定 : 数値モデルを用いたシミュレーション結果の解析

概要

論文の詳細を見る
In order to estimate the long-term behavior of volcanic gases from Miyake Island and the effect to deposition of sulfate, a numerical simulation for sulfur dioxides by a chemical transport model coupled with a mesoscale meteorological model was conducted for four years. The results of simulation were verified through the comparison with the observed data. The simulation well described the behavior of SO2 and sulfate, and wet deposition of sulfate reasonably. The simulation indicated that the predominant wind system such as winter and summer monsoon played an important role in the transport of volcanic gases. The volcanic gases from Miyake Island increased the concentrations and depositions of sulfur dioxides in Honshu, the main island of Japan, and the Northwest Pacific. The effect of the eruption of Miyake Island was significant in sulfur dioxide concentration and deposition on the sea where the emissions of pollutants do not exist.
日本エアロゾル学会の論文
2005-12-20