Modeling Spatial Variability Of 137Cs Surface Activity In A Mountain Area
Free (open access)
J M Métivier & L Pourcelot
Based on 137Cs surface activity field studies performed on a workshop zone, we succeeded in identifying the main criterion permitting surface activity modeling to be extended, Geomorphometric data derived from the Digital Elevation Model (slope, aspect) was combined together with land use. Geographical Information System software allowed us to gather together, organize and analyze the spatial variability of these data sets. Surface activity in all the catchment basins were modeled using a mapping function tree that symbolizes treatment sequences. Subsequently, a map validation step was performed via soil sampling and measuring.