Realtime volcano monitoring from Space : application to east Asian volcanoes

我们已经开发了对东亚100座活火山的近乎实时的热点监测系统，包括菲律宾北部、千岛群岛、堪察加半岛、印度尼西亚西部和日本群岛。该系统分别使用Terra/Aqua卫星和NOAA系列极地轨道卫星上的MODIS和AVHRR提供的每日夜间红外图像。MODIS和AVHRR观测的结果和分析，基本上是每个目标火山的热图像和时间序列辐射趋势，自动上载到Web上。目前，这种情况发生在卫星立交桥后的几个小时内，尽管未来可能会加快。通过这种方式，计划火山学家和其他有关方面可以使用MODIS和AVHRR数据作为他们正在研究的火山表面热状态的广泛检查，并可以将他们自己的解释应用于任何已确定的加热或冷却趋势。可通过网址：http://vrsserv.eri.u-tokyo.ac.jp/REALVOLC/MODIS.访问基于MODIS系统原型的网站

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.