Frequency based satellite monitoring of small scale explosive activity at remote North Pacific volcanoes

摘要: Abstract Monitoring of volcanoes in the North Pacific can be an expensive and sometimes dangerous task, specifically for those located Alaska (USA) Kamchatka (Russia). An active frequency detection method previously used at Stromboli, Italy, uses thermal- mid-infrared wavelength bands from Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data to detect anomalies a volcano. This focuses on small scale explosive activity, often referred as Strombolian activity which produce spatter fields near volcano's vent. In Pacific, there are number exhibit three focus this study: Chuginadak (Mt. Cleveland) Shishaldin Alaska, Karymsky Volcano Kamchatka. Satellite images Advanced Very High Radiometer (AVHRR) were monitor thermal features well occurrence ash plumes each was then time series spanning 2005–2010 all volcanoes. During period, volcano underwent eruptive cycles including background levels heightened explosions (identified precursory activity), typified by plume-producing eruptions. Each location has unique signal, both timing magnitude. The use developed new sample set proved validity monitoring tool with activity. should applied larger continue development database production its tool.