霧島新燃岳2011年噴煙の映像観測と移流解析

摘要

Shinmoe-dake, Kirishima volcano in Kyushu, Japan has started the magmatic eruption since the end of January 2011. Massive ejections of ash cloud during 26 January to 4 February were recorded by visible and near-infrared cameras located at 38-58 km away from the volcano. These large ash clouds were observed by the NOAA-APT MCIR images. The advection analysis of these ash clouds were performed by using the ground observation images, MTSAT images, and the NOAA HYSPLIT model. These results and the visible images taken with one-hour interval by a digital camera, installed at 9 km SSW from the volcano since 29 January, are displayed at Kumamoto University website.%2011年1月19日に霧島新燃岳（標高1421m）で小規模な噴火が発生した．同月26日14時49分からマグマ噴火が始まり，2月上旬まで頻繁に爆発的な噴火が発生して風下の地域に多量の降灰をもたらした．その後，噴火の規模や頻度は低下したものの，2011年9月下旬現在も噴火警戒レベル3（入山規制）が継続している．