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DS926 Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina -- Points where head differences were calculated across the MAPCU

Dates

Release Date
2015-03-04
Start
1940-01-01 01:00:00
End
2013-01-01 01:00:00
Publication Date

Citation

Dixon, J., 2015, DS926 Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina -- Points where head differences were calculated across the MAPCU: U.S. Geological Survey data release, https://doi.org/10.5066/P93FUEQJ.

Summary

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system were developed to define an updated hydrogeologic framework as part of the U.S. Geological Survey Groundwater Resources Program. This feature class contains computed head difference from wells open to aquifer above and below the MAPCU.

Contacts

Point of Contact :
U.S. Geological Survey, Joann Dixon
Originator :
U.S. Geological Survey
Metadata Contact :
U.S. Geological Survey
SDC Data Owner :
Caribbean-Florida Water Science Center
USGS Mission Area :
Water Resources

Attached Files

Click on title to download individual files attached to this item.

ds926_shapefiles.zip 80.59 MB application/zip
ds926_gdb.zip 68.89 MB application/zip
ds926_ASCII_rasters.zip 20.61 MB application/zip
USAaquiferMAP11_17.pdf 1.61 MB application/pdf
ds926_fig38.jpg thumbnail 466.61 KB image/jpeg

Purpose

The dataset contains structural surfaces depicting the top and base of the aquifer system, its major and minor hydrogeologic units and zones, geophysical marker horizons, and the altitude of the 10,000-milligram-per-liter total dissolved solids boundary that defines the approximate fresh and saline parts of the aquifer system. The thicknesses of selected major and minor units or zones were determined by interpolating points of known thickness or from raster surface subtraction of the structural surfaces. Additional data contained include clipping polygons; regional polygon features that represent geologic or hydrogeologic aspects of the aquifers and the minor units or zones; data points used in the interpolation; and polygon and line features that represent faults, boundaries, and other features in the aquifer system. Shows the head differences for the middle Avon Park composite unit (MAPCU).
Middle Avon Park composite unit
Middle Avon Park composite unit

Map

Communities

  • Model Data Management Function (MDMF)

Tags

Provenance

These data were originally released on the Water Mission Area National Spatial Data Infrastructure Node and were migrated to sciencebase.gov in 2023. These data were released prior to the October 1, 2016 effective date for the USGS's policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P93FUEQJ

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