DRASTIC model results for Upper Floridan aquifer vulnerability to Bromacil and Ethylene Dibromide

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Steven H. Douglas
Publication_Date: 20170828
Title:

DRASTIC model results for Upper Floridan aquifer vulnerability to Bromacil and Ethylene Dibromide

Geospatial_Data_Presentation_Form: raster digital data-set
Series_Information:

Series_Name: U.S. Geological Survey data release
Issue_Identification: doi:10.5066/F7S46QTV

Publication_Information:

Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/F7S46QTV

Description:

Abstract:

This dataset includes DRASTIC (Aller and others, 1987) model results for Upper Floridan aquifer vulnerability to contamination. The DRASTIC value serves as an intrinsic vulnerability index for assessing the transport of contaminants from the surface. The DRASTIC model setup requires the input of raster data for depth to groundwater, aquifer recharge, aquifer media, soil media, topography, vadose zone media, and aquifer hydraulic conductivity. These variables were entered into the DRASTIC equation using the raster calculator tool in ArcGIS.

Purpose:

This dataset was generated from the DRASTIC model to test the model's ability to indicate intrinsic groundwater vulnerability in the Southwest Florida Water Management District (SWFWMD).

Supplemental_Information:

A downloadable version of the final dataset is provided in GeoTIFF file format with 10-meter resolution.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2017

Currentness_Reference: publication date

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -83.252177
East_Bounding_Coordinate: -80.829948
North_Bounding_Coordinate: 29.695895
South_Bounding_Coordinate: 26.572896

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:9280fc73-006b-4e1c-8307-239dfdfd900f

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: DRASTIC
Theme_Keyword: intrinsic vulnerability
Theme_Keyword: pesticide
Theme_Keyword: aquifer
Theme_Keyword: raster dataset
Theme_Keyword: Florida
Theme_Keyword: Southwest Florida Water Management District
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: University of South Florida St. Petersburg

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: inlandWaters
Theme_Keyword: environment
Theme_Keyword: health

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: geology
Theme_Keyword: groundwater
Theme_Keyword: water quality
Theme_Keyword: water resources
Theme_Keyword: hydrogeology

Access_Constraints: None
Use_Constraints:

Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Cherokee Nation Technologies contracted to the U.S. Geological Survey

Contact_Person: Steven Douglas

Contact_Address:

Address_Type: physical and mailing address
Address: 600 4th St S
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701

Contact_Voice_Telephone: 727-502-8134
Contact_Electronic_Mail_Address: sdouglas@usgs.gov

Data_Set_Credit:

U.S. Geological Survey and University of South Florida St. Petersburg

Native_Data_Set_Environment:

Microsoft Windows 7 Version 6.1 (Build 7601) Service pack 1; Esri ArcGIS 10.2

Cross_Reference:

Citation_Information:

Originator: Aller, L., Bennet, T., Lehr, J. H., Petty, R., and Hackett, G.
Publication_Date: 198705
Title:

DRASTIC: A standardized system to evaluate groundwater pollution potential using hydrogeologic settings

Publication_Information:

Publication_Place: Dublin, OH
Publisher:

National Water Well Association, U.S. Environmental Protection Agency

Online_Linkage:

http://rdn.bc.ca/cms/wpattachments/wpID3175atID5999.pdf or https://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=20007KU4.txt

Cross_Reference:

Citation_Information:

Originator: Douglas, S., Dixon, B., and Griffin, D.
Publication_Date: Unknown
Title:

Assessing intrinsic and specific vulnerability models ability to indicate groundwater vulnerability to groups of similar pesticides: a comparative study

Publication_Information:

Publication_Place: Philadelphia, PA
Publisher: Physical Geography

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: No formal attribute accuracy tests were conducted.

Logical_Consistency_Report:

Raster values were checked for consistency with expected values.

Completeness_Report:

Data-set is considered complete for the information presented, as described in the abstract.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: No formal horizontal positional accuracy tests were conducted.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

A formal accuracy assessment of the vertical positional information in the data-set has either not been conducted, or is not applicable.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: 20111117
Title:

Potentiometric Surface of the Upper Floridan Aquifer in Florida and in Parts of Georgia, South Carolina, and Alabama, May – June 2010

Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:

Publication_Place: Orlando, FL
Publisher: U.S. Geological Survey

Online_Linkage: https://pubs.usgs.gov/sim/3182/data/Potmap_wells_May2010.zip

Type_of_Source_Media: digital
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 201005
Ending_Date: 201006

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: SIM3182
Source_Contribution:

Potentiometric surface was used as the depth to groundwater variable in the DRASTIC model equation.

Source_Information:

Source_Citation:

Citation_Information:

Originator:

Mapping and GIS Section, Southwest Florida Water Management District

Publication_Date: 2002
Title: Aquifer Recharge/Discharge data from USGS 2002 Model
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:

Publication_Place: 2379 Broad Street, Brooksville, FL 34604-6899
Publisher: Southwest Florida Water Management District

Online_Linkage:

http://ftp.swfwmd.state.fl.us/pub/gisdata/physical_sparse/recharge2002.exe

Type_of_Source_Media: digital
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2002

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: SWFWMD
Source_Contribution:

Aquifer recharge/discharge was used as the recharge variable in the DRASTIC model equation.

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: 200310
Title:

Principal Aquifers of the 48 Conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands

Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Online_Linkage: https://water.usgs.gov/GIS/dsdl/aquifers_us.zip

Type_of_Source_Media: digital
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1989
Ending_Date: 2001

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: USGS HA-730
Source_Contribution:

The aquifer rock type field was used as the aquifer media variable in the DRASTIC model equation. For additional information, please see the metadata for the data file available here: https://water.usgs.gov/GIS/metadata/usgswrd/XML/aquifers_us.xml.

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Department of Agriculture, Natural Resources Conservation Service

Publication_Date: 2015
Title:

USDA-NRCS Soil Survey Geographic (SSURGO 2.2): texdesc and ksat_r

Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:

Publication_Place: Fort Worth, TX
Publisher: USDA/NRCS - National Geospatial Center of Excellence

Online_Linkage:

https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053627

Type_of_Source_Media: digital
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2015

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: SSURGO
Source_Contribution:

Texdesc was used as the soil media variable and ksat_r as the saturated hydraulic conductivity variable in the DRASTIC model equation.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Florida Geographic Data Library
Publication_Date: 201301
Title:

Florida Digital Elevation Model (DEM) Mosaic - 5-Meter Cell Size - Elevation Units Meters (FGDC)

Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:

Publication_Place: Gainesville, FL
Publisher: University of Florida GeoPlan Center

Online_Linkage: ftp://ftp.fgdl.org/pub/state/flidar_mosaic_ft.zip

Type_of_Source_Media: digital
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20130114

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: FLIDAR_MOSAIC_M
Source_Contribution:

The 5-meter DEM was used as the topography variable in the DRASTIC model equation.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Florida Geographic Data Library
Publication_Date: 2001
Title: Geology (Environmental)
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:

Publication_Place: Gainesville, FL
Publisher: Florida Geographic Data Library

Online_Linkage: ftp://ftp.fgdl.org/pub/state/fdepgeo.zip

Type_of_Source_Media: digital
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2001

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: fdepgeo
Source_Contribution:

The CATEGORY field was used as the Impact of the Vadose Zone variable in the DRASTIC model equation

Process_Step:

Process_Description:

Tabular and map Soil Survey Geographic Database SSURGO data for Florida were downloaded through the U.S. Department of Agriculture (USDA) Geospatial Data Gateway. Descriptions for the SSURGO classes are available at the Soil Survey website http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ref/?cid=nrcs142p2_054253. SSURGO metadata is available at: http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/home/?cid=nrcs142p2_053631. The polygon SSURGO shapefiles were joined to the tabular files within the file geodatabase. The first join to be made uses the “mukey” field as the common identifier to join the cokey field from the “component” table. The second join to be made uses the cokey field as the common identifier to join the ksat_r (Saturated Hydraulic Conductivity) field from the “CHorizon” table. Finally, the chtexturegrp join was made using the chorizon field as the common identifier to join the texdesc (Texture) field. The texture and rock type variables are expressed as descriptive text. They were reclassified as numerical values based on the methods described by Aller and others (1987). The final polygon shapefile was converted to a 10-meter raster GeoTiffs using the Polygon to Raster tool.

Process_Date: 2015
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Steven H. Douglas
Contact_Organization:

Cherokee Nation Technologies contracted to the U.S. Geological Survey

Contact_Address:

Address_Type: Physical and mailing
Address: 600 4th St S
City: St Petersburg
State_or_Province: FL
Postal_Code: 33701

Contact_Voice_Telephone: 727-502-8134
Contact_Electronic_Mail_Address: sdouglas@usgs.gov

Process_Step:

Process_Description:

SWFWMD Recharge converted to inches per year based on Aller and others (1987).

Process_Date: 2015

Process_Step:

Process_Description: Aquifer media reclassified based on Aller and others (1987).
Process_Date: 2015

Process_Step:

Process_Description:

Topography converted to percent slope using the Slope tool in the Surface toolbox in ArcGIS based on Aller and others (1987).

Process_Date: 2015

Process_Step:

Process_Description:

Impact of the vadose zone reclassified based on Aller and others (1987).

Process_Date: 2015

Process_Step:

Process_Description:

Added keywords section with USGS persistent identifier as theme keyword.

Process_Date: 20201013
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:

Raster_Object_Type: Grid Cell
Row_Count: 19854
Column_Count: 32323

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: USA_Contiguous_Albers_Equal_Area_Conic_USGS_version
Albers_Conical_Equal_Area:

Standard_Parallel: 29.5
Standard_Parallel: 45.5
Longitude_of_Central_Meridian: -96.0
Latitude_of_Projection_Origin: 23.0
False_Easting: 0.0
False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:

Abscissa_Resolution: 10.0
Ordinate_Resolution: 10.0

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: drastic_model.tif
Entity_Type_Definition:

GeoTIFF file that includes DRASTIC model results for the Upper Floridan aquifer vulnerability to contamination.

Entity_Type_Definition_Source: USGS

Attribute:

Attribute_Label: OID
Attribute_Definition:

Internal feature number. Sequential unique whole numbers that are automatically generated.

Attribute_Definition_Source: Esri
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 4

Attribute:

Attribute_Label: Value
Attribute_Definition:

DRASTIC reclassified vulnerability class values. 1 = Very Low Vulnerability, 2 = Low, 3 = Medium, 4 = High, 5 = Very High.

Attribute_Definition_Source: USGS
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Very Low Vulnerability
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition: Low Vulnerability
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition: Medium Vulnerability
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 4
Enumerated_Domain_Value_Definition: High Vulnerability
Enumerated_Domain_Value_Definition_Source: USGS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition: Very High Vulnerability
Enumerated_Domain_Value_Definition_Source: USGS

Attribute:

Attribute_Label: Count
Attribute_Definition: Number of cells
Attribute_Definition_Source: Esri
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 21366747
Range_Domain_Maximum: 57871306

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Cherokee Nation Technologies contracted to the U.S. Geological Survey

Contact_Person: Steven Douglas

Contact_Address:

Address_Type: physical and mailing
Address: 600 4th St S
City: St Petersburg
State_or_Province: FL
Postal_Code: 33701

Contact_Voice_Telephone: 727-502-8134
Contact_Electronic_Mail_Address: sdouglas@usgs.gov

Distribution_Liability:

Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. The data have been approved for release and publication by the U.S. Geological Survey (USGS). Although the data have been subjected to rigorous review and are substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, the data are released on the condition that neither the USGS nor the U.S. Government may be held liable for any damages resulting from authorized or unauthorized use. Although the data have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS shall not be held liable for improper or incorrect use of the data described and/or contained herein. Users of the data are advised to read all metadata and associated documentation thoroughly to understand appropriate use and data limitations.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: GeoTIFF
Format_Version_Date: 2017

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://coastal.er.usgs.gov/data-release/doi-F7S46QTV/data/AF_model.zip

Fees: None.

Metadata_Reference_Information:

Metadata_Date: 20201013
Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Cherokee Nation Technologies contracted to the U.S. Geological Survey

Contact_Person: Steven H. Douglas

Contact_Address:

Address_Type: physical and mailing
Address: 600 4th St S
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701

Contact_Voice_Telephone: 727-502-8134
Contact_Electronic_Mail_Address: sdouglas@usgs.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/DRASTIC_metadata.html>