00000nam 2200000za 4500 9.653497 CaOODSP 20241203113635 ta 150407|1993||||xxc||||| f|0| 0 eng d 0-660-58895-1 0-662-20339-9 CaOODSP eng eng fre n-cn--- En40-447/1993 Canada. Environment Canada. Quantitive assessment of surface water at risk due to acidification in eastern Canada / by R. G. Hélie et al. Ottawa - Ontario : Environment Canada 1993. English text, 107p. : figs., graphs, tables ; 28 cm. "Remote sensing was examined as a means of generating a digital counts and measures data base for surface water and wetlands in a pilot study in three areas of eastern Canada.... Following the pilot study, the image processing methodology was adjusted and remote sensing was used to develop a quantitative data base of water bodies in eastern Canada.... Selected results of this quantitative assessment are presented in this report."--Introduction. This publication presents the results of a pilot study in which remote sensing was used to predict the effects of acid rain on surface water. This information helped to develop a quantitative database of water bodies in eastern Canada, where acidification is the highest in Canada. The study also established an automated technique for gathering data by using full-scene Landsat Thematic Mapper (TM) digital data. Bilingual Softcover 93-42 1993-10-22 Water gcpds Water pollution gcpds Environmental impact assessment gcpds Hélie, R. G. Quantitative assessment of surface water at risk due to acidification in eastern Canada / (CaOODSP)9.875074 Évaluation quantitative des eaux de surface menacées par les dépôts acides dans l'est du Canada / fre (CaOODSP)9.653498