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GALDIT: Groundwater Vulnerability Index (UMD)
This layer shows the vulnerability of Maryland’s aquifers to saltwater intrusion, based on the GALDIT index. GALDIT evaluates vulnerability based on six parameters: groundwater... -
(A) Aquifer Hydraulic Conductivity (m/day) (UMD)
This layer shows aquifer hydraulic conductivity for cropland areas in Maryland, representing the 'A' parameter in the GALDIT groundwater vulnerability index. GALDIT evaluates... -
(G) Groundwater Aquifer Type (UMD)
This layer shows groundwater aquifer type for cropland areas in Maryland, representing the 'G' parameter in the GALDIT groundwater vulnerability index. GALDIT evaluates... -
(L) Groundwater Level Above Sea Level (m) (UMD)
This layer shows groundwater level above sea level for cropland areas in Maryland, representing the 'L' parameter in the GALDIT groundwater vulnerability index. GALDIT evaluates... -
(D) Distance from Shoreline (m) (UMD)
This layer shows distance from shoreline for cropland areas in Maryland, representing the 'D' parameter in the GALDIT groundwater vulnerability index. GALDIT evaluates... -
(I) Impact of Present Cl Content (mg/L) (UMD)
This layer shows the impact of present chloride (Cl) content for cropland areas in Maryland, representing the 'I' parameter in the GALDIT groundwater vulnerability index. GALDIT... -
(T) Aquifer Thickness (m) (UMD)
This layer shows aquifer thickness for cropland areas in Maryland, representing the 'T' parameter in the GALDIT groundwater vulnerability index. GALDIT evaluates vulnerability... -
GALDIT: Groundwater Vulnerability Index for Cropland Areas (UMD)
This layer shows the vulnerability of Maryland’s aquifers and farmland to saltwater intrusion, based on the GALDIT index. The GALDIT framework evaluates coastal aquifer... -
Maryland Aquifers (USGS)
This layer shows the spatial extent of principal aquifers in Maryland, classified by aquifer name and type. Aquifer units include the Columbia aquifer, Chesapeake group, Aquia...