After an illegal dumping site was found on the border between Iwate and Aomori Prefectures, an environmental monitoring system using artificial satellites and ground observation apparatus was established to constantly monitor and analyze environmental changes. In this study, the data collected using this system, including satellite data, on-site, infrared camera images, and water quality data, was analyzed to establish the level of on-site contamination and state of recovery. Some SPOT images were compared to establish the on-site vegetation changes using the NDVI (Normalized Difference Vegetation Index). The relationship between changes in water quality and rainfall was established. It was confirmed that the removal of fluid waste and extensive work carried out on the site reduced the alkalinity of the water.
Wenhui ZHAO, Takanori SASAKI and Shigetaka FUJITA
Source: Proceeding of The CEReS International Symposium on Remote Sensing, Maximization of the Use of Satellite Data for Understanding the Earth Environment, 2005.