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Federal
Digital data set describing surficial geology in the conterminous US
Department of the Interior —
This digital data set describes surficial geology of the conterminous United States. The data set was generated from a U.S. Geological Survey 1:7,500,000-scale map of... -
Federal
CRED Fagatele Bay National Marine Sanctuary Bathymetric Position Index Habitat Zones 2004
National Oceanic and Atmospheric Administration, Department of Commerce —
Bathymetric Position Index (BPI) Zones derived from derivatives of Simrad EM-3000 multibeam bathymetry (3 m resolution). BPI zones are surficial characteristics of... -
Federal
MODFLOW-NWT model used to simulate groundwater levels in the Des Moines River alluvial aquifer near Des Moines, Iowa
Department of the Interior —
The U.S. Geological Survey constructed a steady-state numerical groundwater flow model in cooperation with Des Moines Water Works (DMWW) to simulate groundwater flow... -
Federal
Distribution of Stratified-Drift Aquifers in the Glaciated Northeastern United States
Department of the Interior —
A digital representation of a glacial aquifer map for the northeastern United States (Kontis and others, 2004; http://pubs.er.usgs.gov/publication/pp1415C; Plate 3)... -
Federal
CRED Fagatele Bay National Marine Sanctuary Bathymetric Position Index Habitat Structures 2004
National Oceanic and Atmospheric Administration, Department of Commerce —
Bathymetric Position Index (BPI) Structures are derived from derivatives of Simrad EM-3000 multibeam bathymetry (1 m and 3 m resolution). BPI structures are surficial... -
Federal
MODFLOW-NWT model used to simulate groundwater levels in the Cedar River alluvial aquifer near Cedar Rapids, Iowa
Department of the Interior —
A three-dimensional MODFLOW-NWT model was constructed to better understand the effects of drought stress on the Cedar River alluvial aquifer, the principal source of... -
Federal
MODFLOW2000 and MODFLOW-ASP models used to simulate the groundwater flow in the Atlantic Coastal Plain, North and South Carolina and parts of Georgia and Virginia, Predevelopment to 2004
Department of the Interior —
A three-dimensional groundwater flow model (MODFLOW2000) of the Atlantic Coastal Plain aquifers and confining units was developed to evaluate groundwater availability... -
Federal
A Surficial Hydrogeologic Framework for the Mid-Atlantic Coastal Plain
Department of the Interior —
The hydrogeologic framework was developed from a combination of the physiography and the predominant texture of surficial geologic units in the Mid-Atlantic Coastal...