gis – based drastic model for assessing the vulnerability of groundwater aquifers
DESCRIPTION
GIS – BASED DRASTIC MODEL FOR ASSESSING THE VULNERABILITY OF GROUNDWATER AQUIFERS TO POLLUTION SOURCES. DRASTIC MODEL PARAMETERS. Depth to water net Recharge Aquifer media Soil media Topography vadose zone Conductivity . DRASTIC MODEL PARAMETERS & INDEX. Depth to water:. - PowerPoint PPT PresentationTRANSCRIPT
GIS – BASED DRASTIC MODEL FOR ASSESSING THE VULNERABILITY OF GROUNDWATER AQUIFERS
TO POLLUTION SOURCES
DRASTIC MODEL PARAMETERS
Depth to water net Recharge Aquifer media Soil media Topography vadose zone Conductivity
DRASTIC
Weight Rate
wrwrwrwrWwrwr CCIITTSS AA RRDD Index RDRASTIC
DRASTIC MODEL PARAMETERS & INDEX
Depth to water:
Depth to water – Model Layer
Net Recharge
Net Recharge – Model Layer
Aquifer media
Aquifer media – Model Layer
Soil media
Soil media – Model Layer
Topography
Topography – Model Layer
Impact of vadose zone
Vadose zone – Model Layer
Conductivity
Hydraulic Conductivity– Model Layer
MODEL RESULTS
Vulnerability to Contamination in General
MODEL RESULTS
Vulnerability to fertilizers