About SHIMANO TAKETO
About 常葉大 院
About YASUDA ATSUSHI
About IGUCHI MASATO
About UEKI KENTA
About 海洋研究開発機構
About KUWATANI TATSU
About 海洋研究開発機構
About 日本火山学会講演予稿集
About Sakura Island
About volcano
About principal component analysis
About volcanic ash
About colorimetry
About Sakurajima volcano
About Volcanic geology in general
About 主成分分析
About バルク
About 火山灰
About 測色値
About 桜島昭和火口
About 活動