DRASTIC parameter "R - Net recharge" for Pilot area Tønder (Denmark)
This is the second parameter for the DRASTIC groundwater vulnerability assessment (Aller et al. 1987) applied at the HOVER WP7 pilot area Tønder (Denmark).
This geotiff is derived from the vertical flow simulated with MODFLOW2000/GroundwaterVistas6 model for the study area (Rasmussen and Sonnenborg, 2015), representative for -29 m.a.s.l. The units were converted from mm/day to mm/y and then reclassified into the R index using the HOVER D7-2 Appendix A1. The pilot area takes the values between 1 and 10. See HOVER D7-2 for more details and references.