ASTERによる火山観測の可能性とグローバル火山観測計画

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The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), which will be launched on EOS AM-1 platform in 1999, is a high spatial resolution imaging spectro-radiometer in the visible to near-infrared, shortwave-infrared and thermal infrared regions. ASTER can be used for volcano observations from the viewpoints of topographic and geologic analyses, mapping volcanic products, eruption plume analysis, discolored sea water and crater lake monitoring, generating digital elevation models, surface temperature mapping and sulfur dioxide emission analyses. The ASTER allows continuous temperature measurements ranging from amibient temperature to 460℃ and from 670℃ to 910℃. The TIR instrument can be used to make estimation of sulfur dioxide content of volcanic plumes. The authors propose the global volcano monitoring plan by using the ASTER data, in which over 900 volcanoes will be monitored periodically according to their volcanic activity. The volcanoes to be monitored are divided into three classes, A, B and C. Volcanoes in the Class A, which had several eruptions during last 10 years, will be observed every 48 days in day time and every 32 days in night time. Volcanoes in the Class B, which had several eruptions during last 100 years, will be observed every 3 months in day and night time. The other volcanoes classified to the Class C will be observed every 6 months in day and night time.
特定非営利活動法人日本火山学会の論文
1999-06-30

ASTERによる火山観測の可能性とグローバル火山観測計画

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