[en] This report is a first step to create a documentation of the ecosystems close to the surface, that will be a part of the site characterization program. The variables list all the information that can be collected from a site. Local conditions and methodology development will influence the final choice of parameters and need for information collection. The variables are divided into the groups: Man, Climate, Physical geography, Biota and Hydrology and has been rated according to their expected importance for different application areas