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火山喷发是一种突发性自然现象,而近几年全球气候异常变化。世界各地火山、地震等地质灾害此起彼伏,严重威胁了人类的生命和财产安全。阐述用3S技术对活火山监测的研究。根据火山喷发在陆地卫星TM影像上的特征,通过不同时相TM影像叠加,目视解译确定火山是否在活动,为火山区减灾、防灾和合理规划经济布局服务。
Volcanic eruption is a sudden natural phenomenon, and in recent years the global climate changes anomalously. Geological disasters such as volcanoes and earthquakes around the world come and go one after another, posing a serious threat to human life and property safety. Describes the research of active volcano monitoring using 3S technology. According to the features of volcanic eruptions on Landsat TM images, TM images are superimposed by different time phases to visually interpret and determine whether volcanoes are active and serve the economic deployment of disaster reduction, disaster prevention and rational planning in volcanic areas.