Realtime volcano monitoring from Space : application to east Asian volcanoes

点击翻译按钮获取中文摘要

We have developed near real-time hot spot monitoring system for 100 active volcanoes in east Asia, including northern Philippines, the Kuril Islands, the Kamchatka peninsula, western Indonesia and the Japanese Islands. The system uses daily nighttime infrared imagery from the MODIS and AVHRR onboard the Terra/Aqua satellites and NOAA series of polar orbiting satellites, respectively. The results and analyses of the MODIS and AVHRR observations, essentially thermal images and time-series radiance trends of each volcano targeted, are automatically uploaded on the Web. Currently this occurs within some hours of the satellite overpass, though this could be quickened in future. In this way it is planned that volcanologists and other interested parties might use the MODIS and AVHRR data as a broad check on the surface thermal state of the volcanoes they are studying and may apply their own interpretations to any identified heating or cooling trend. The web site for the prototype MODIS based system is accessible at the URL : http://vrsserv.eri.u-tokyo.ac.jp/REALVOLC/MODIS.