testing WMS with an 8 Bit GeoTIFF

testing WMS with a 32 Bit GeoTIFF

Vulnerability assessment using DRASTIC (Aller et al., 1987) and COP methods

Vulnerability assessment using DRASTIC method (Aller et al., 1987)

Vulnerability assessment using DRASTIC method (Aller et al., 1987)

R layer represents net recharge to groundwater (1980-2000 data).

Vulnerability assessment using DRASTIC (Aller et al., 1987) and COP methods

R layer represents net recharge to groundwater, the mean net recharge in GROWA in the period 1981-2010. Values are reclassified values into D index values from 1 to 10. Lower values correspond to NE part of the area, where amount of precipitation is small.

The Hydraulic conductivity layer is taken as a direct assignment of the hydraulic conductivities from the aquifer parameter database to the C index values according to DRASTIC, ranging from 1 to 10.

The Lower Oder / Odra pilot area is the only transboundary region assessing the groundwater vulnerability in GeoERA HOVER WP7 applying the DRASTIC methodology. The pilot area has an extent of about 7374 km2 and comprises parts of the groundwater catchment of the Middle and Lower Oder river of Western Poland and Eastern Germany. The considered near-surface strata consist of Cenozoic unconsolidated sediment. The assessment aims on the groundwater vulnerability to pollution of the upper useful aquifer, which is not necessarily the uppermost aquifer. The groundwater of this aquifer is primarily used for drinking water and irrigation purposes. The rating of DRASTIC parameter "C" according to Aller et al (1987) with values from 1 to 10 was modified and describes the hydraulic conductivity for the assessment of the groundwater vulnerability.applying the DRASTIC method.