Environmental Analyses of Industrial Waste using Satellites and On-site Sensors

抄録

The biggest illegal dumping site in Japan was found on the border between Iwate and Aomori Prefecturesabout 50 km away from Hachinohe city. It caused major social problems such as environmentalcontamination and must be reverted to its natural state. To monitor and analyze the environmental changes, a remote sensing system was established using artificial satellites and on-site sensors. From February, 2004, a large amount of data including satellite images, water quality data and weather data has been collectedusing this system. In this paper, these data was analyzed to explain the state of contamination and the stateof recovery. Satellite images from several different satellite sensors were combined for vegetation analysisand topographic analysis. The result manifested topographic characteristics of the site and the changes ofgreen vegetation. And the relationship between the changes of water quality and the existence or the removalof industrial wastes was explained. These will be powerful tools for dealing with industrial waste.