CLOSED TOPOGRAPHIC DEPRESSIONS IN FLORIDA - 2004

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: Florida Geological Survey

Publication_Date: 2004

Title: CLOSED TOPOGRAPHIC DEPRESSIONS IN FLORIDA - 2004

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Tallahassee, FL

Publisher:

Florida Department of Environmental Protection, Florida Geological Survey

Other_Citation_Details: State of Florida

Online_Linkage:

<http://www.dep.state.fl.us/geology/programs/hydrogeology/disclaimer/dis_clos_topo_dep.htm>

Description:

Abstract:

This coverage represents closed topographic depressions within the State of Florida from the USGS 1:24 000 topographic maps. Closed topographic depressions are defined as areas of very limited or no drainage. Closed topographic depressions in Florida are a good surrogate to defining karst regions. Ground-water vulnerability is dependent upon the rate at which water reaches the aquifer system. In Florida, sinkholes generally provide preferential pathways for water and contaminants to travel to aquifer systems more rapidly from land surface. As a result, aquifer vulnerability increases in areas of relatively dense karst topography.

Purpose:

Data developed to locate all closed/internally drained areas mapped on 1:24,000 topographic maps. Dataset taken from latest available USGS 7.5' quadrangle maps.

Supplemental_Information:

This layer is used as an input dataset in the Florida Aquifer Vulnerability Assessment (FAVA) model. Ground-water vulnerability is dependent upon the rate at which water reaches the aquifer system. In Florida, sinkholes generally provide preferential pathways for water and contaminants to travel to aquifer systems more rapidly from land surface. As a result, aquifer vulnerability increases in areas of relatively dense karst topography. It is well beyond the scope of [the FAVA study] to map every sinkhole or karst-related feature in Florida; however, a surrogate data coverage was available from the FDEP DEM that reflects areas with a high population of karst features. During development and enhancement of FDEP DEM, closed hachured topographic depressions were attributed. For areas with multiple encircling hachured contour lines, only the outermost depression was selected. These lines were converted to polygons which were used to create a statewide data coverage of closed topographic depressions. This coverage was filtered for each aquifer system and used as input into the WoW - FAVA model. These filtering processes are described in Results - FA VA Model Outputs for each aquifer system.
Although not all closed topographic depressions are karst features, there is a strong correlation between the density of depressions on USGS 7.5-minute quadrangle maps and areas that include sinkholes of various types. In addition to spatial filtering for the lAS and FAS, other enhancements to this coverage are yet to be completed. These enhancements, however, are not expected to significantly change the results of the FAVA response themes.
For more information on the FAVA model and its complete methodology please see <http://www.dep.state.fl.us/geology/programs/hydrogeology/fava.htm>. Alternatively see the final report at <http://publicfiles.dep.state.fl.us/FGS/WEB/fava/fava_final_dep_report/FAVA_REPORT_MASTER_DOC_3-21-05.pdf>

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2004

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -87.429040

East_Bounding_Coordinate: -79.872251

North_Bounding_Coordinate: 30.983191

South_Bounding_Coordinate: 24.492815

Keywords:

Theme:

Theme_Keyword_Thesaurus: NONE

Theme_Keyword: Hachured depressions

Theme_Keyword: Topographic Depressions

Theme_Keyword: Karst features

Theme_Keyword: Surrogate karst

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: environment

Theme_Keyword: geoScientificInformation

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Florida

Place_Keyword: Southeast United States

Place_Keyword: United States

Temporal:

Temporal_Keyword: 2004

Access_Constraints:

The data should not be used at scales greater than 1:24,000. The data has been smoothed from raster data with a 10FT resolution and may not be all inclusive of the closed depression.

Use_Constraints:

DISCLAIMER This geologic data was developed by the Florida Department of Environmental Protection (FDEP) - Florida Geological Survey (FGS) to carry out agency responsibilities related to management, protection, and development of Florida's natural resources. Although efforts have been made to make the information accurate and useful, the FDEP/FGS assumes no responsibility for errors in the information and does not guarantee that the data are free from errors or inaccuracies. Similarly FDEP/FGS assumes no responsibility for the consequences of inappropriate uses or interpretations of the data. As such, these digital data are distributed on "as is" basis and the user assumes all risk as to their quality, the results obtained from their use, and the performance of the data. FDEP/FGS bears no responsibility to inform users of any changes made to this data. Anyone using this data is advised that precision implied by the data may far exceed actual precision. Comments on this data are invited and FDEP/FGS would appreciate that documented errors be brought to staff attention. The development of these data sets represents a major investment of staff time and effort. As a professional responsibility, we expect that the FDEP/FGS will receive proper credit when you utilize these data sets. Further, since part of this data was developed and collected with U.S. Government or State of Florida funding, no proprietary rights may be attached to it in whole or in part, nor may it be sold to the U.S. Government or the Florida State Government as part of any procurement of products or services.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Florida Geological Survey

Contact_Person: David Anderson

Contact_Position: GIS Analyst

Contact_Address:

Address_Type: mailing and physical address

Address: Gunter Building MS#720

Address: 903 West Tennessee Street

City: Tallahassee

State_or_Province: Florida

Postal_Code: 32304-7700

Country: USA

Contact_Voice_Telephone: 850.488.4191

Contact_Facsimile_Telephone: 850.488.8086

Contact_Electronic_Mail_Address: <http://www.dep.state.fl.us/geology/feedback/ask_geo_form.htm>

Hours_of_Service: 8:00 am to 5:00 pm Monday through Friday

Contact_Instructions: <http://www.dep.state.fl.us/geology/>

Data_Set_Credit:

Florida Geological Survey, Florida Department of Environmental Protection

Native_Data_Set_Environment:

Cross_Reference:

Citation_Information:

Originator: Jon Arthur

Originator: Alan Baker

Originator: Alex Wood

Originator: Jim Chichon

Publication_Date: 2005

Title:

Florida Aquifer Vulnerability Assessment (FAVA): Contamination potential of Florida's principal aquifer systems

Other_Citation_Details:

Florida Aquifer Vulnerability Assessment (FAVA): Contamination potential of Florida's principal aquifer systems report: <http://publicfiles.dep.state.fl.us/FGS/WEB/fava/fava_final_dep_report/FAVA_REPORT_MASTER_DOC_3-21-05.pdf>
Florida Geological Survey - Hydrogeology Section Homepage: <http://www.dep.state.fl.us/geology/programs/hydrogeology/hydro_index.htm>
Florida Aquifer Vulnerability Assessment (FAVA) Information Page: <http://www.dep.state.fl.us/geology/programs/hydrogeology/fava.htm>

Online_Linkage:

<http://publicfiles.dep.state.fl.us/FGS/WEB/fava/fava_final_dep_report/FAVA_REPORT_MASTER_DOC_3-21-05.pdf>

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

GeoPlan relied on the integrity of the attribute information within the original data.

Logical_Consistency_Report:

Consistency of the data was verified by random checks of 1:24,000 USGS topographic rasters.

Completeness_Report:

This data is provided 'as is' by GeoPlan and is complete to our knowledge.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: Consistent with the USGS 1;24 000 topographic maps

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: Consistent with the USGS 1;24 000 topographic maps

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Florida Geological Survey (FGS)

Publication_Date: 2004

Title: CLOSED TOPOGRAPHIC DEPRESSIONS IN FLORIDA - 2004

Online_Linkage:

<http://www.dep.state.fl.us/geology/programs/hydrogeology/disclaimer/dis_clos_topo_dep.htm>

Source_Scale_Denominator: 24000

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1960

Ending_Date: 1994

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: FDEP

Source_Contribution: Spatial and Attribute Information

Process_Step:

Process_Description:

Convert arcs to polygons and dissolving inner polygons in areas where multiple hachured depressions occur.

Process_Date: August 31, 2004

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Andrew Rudin

Contact_Organization: Florida Geological Survey

Contact_Position: GIS Analyst

Contact_Voice_Telephone: 850.488.4191

Process_Step:

Process_Description: Paper USGS 1:24,000 quadrangles scanned and georeferenced.

Process_Step:

Process_Description: Metadata created and revised.

Process_Date: Unknown

Process_Step:

Process_Description:

GeoPlan downloaded this dataset from the Florida Department of Environmental Protection's FAVA GIS data download site (<http://www.dep.state.fl.us/geology/programs/hydrogeology/fava_gis_data.htm>) in June 2011. The data was downloaded in shapefile format and was in the following projection: Albers NAD 83 HARN. During the AQ/QC process the following tasks were undertaken:
- Deleted the following fields: AREA, PERIMITER, STATE_CTD_, STATE_CTD1, DISSOLVE, and AUTO_ID10. - A DESCRIPT field was added based on ZVALUES - A FGDLAQDATE field was added based on the date FGDL downloaded the data from the source. - Renamed file from ctds to ctds_2004.

Source_Used_Citation_Abbreviation: GeoPlan

Process_Date: 20110608

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 163019

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Label point

Point_and_Vector_Object_Count: 163545

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains

Point_and_Vector_Object_Count: 163019

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point

Point_and_Vector_Object_Count: 4

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: Albers Conical Equal Area

Albers_Conical_Equal_Area:

Standard_Parallel: 24.000000

Standard_Parallel: 31.500000

Longitude_of_Central_Meridian: -84.000000

Latitude_of_Projection_Origin: 24.000000

False_Easting: 400000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.002048

Ordinate_Resolution: 0.002048

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: D_North_American_1983_HARN

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Resolution: 1.000000

Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: CTDS_2004

Entity_Type_Definition: CTDS_2004.DBF

Entity_Type_Definition_Source: FDEP

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: FLORIDA_CT

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: FDEP

Attribute:

Attribute_Label: FLORIDA__1

Attribute_Definition: User-defined feature number.

Attribute_Definition_Source: FDEP

Attribute:

Attribute_Label: ZVALUES

Attribute_Definition: Polygon centroid elevation.

Attribute_Definition_Source: FDEP

Attribute:

Attribute_Label: DESCRIPT

Attribute_Definition: FGDL added field based on ZVALUES

Attribute_Definition_Source: GeoPlan

Attribute:

Attribute_Label: FGDLAQDATE

Attribute_Definition: The date FGDL acquired the data from the source

Attribute_Definition_Source: GeoPlan

Attribute:

Attribute_Label: AUTOID

Attribute_Definition: Unique ID added by GeoPlan

Attribute_Definition_Source: GeoPlan

Attribute:

Attribute_Label: SHAPE.AREA

Attribute_Definition: Area in meters

Attribute_Definition_Source: GeoPlan

Attribute:

Attribute_Label: SHAPE.LEN

Attribute_Definition: Perimeter in meters

Attribute_Definition_Source: GeoPlan

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Florida Geographic Data Library (FGDL)

Contact_Address:

Address_Type: mailing address

Address: 431 Architecture PO Box 115706

City: Gainesville

State_or_Province: Florida

Postal_Code: 32611-5706

Country: United States

Contact_Electronic_Mail_Address: Web site: <http://www.fgdl.org>

Contact_Electronic_Mail_Address: Technical Support: <http://www.fgdl.org/fgdlfeed.html>

Contact_Electronic_Mail_Address: For FGDL Software: <http://www.fgdl.org/software.html>

Contact_Electronic_Mail_Address:

FGDL Frequently Asked Questions: <http://www.fgdl.org/fgdlfaq.html>

Contact_Electronic_Mail_Address: Mailing list for FGDL: <http://www.fgdl.org/fgdl-l.html>

Resource_Description: DOWNLOADABLE DATA

Distribution_Liability:

The Florida Geographic Data Library is a collection of Geospatial Data compiled by the University of Florida GeoPlan Center with support from the Florida Department of Transportation. GIS data available in FGDL is collected from various state, federal, and other agencies (data sources) who are data stewards, producers, or publishers. The data available in FGDL may not be the most current version of the data offered by the data source. University of Florida GeoPlan Center makes no guarantees about the currentness of the data and suggests that data users check with the data source to see if more recent versions of the data exist.
Furthermore, the GIS data available in the FGDL are provided 'as is'. The University of Florida GeoPlan Center makes no warranties, guaranties or representations as to the truth, accuracy or completeness of the data provided by the data sources. The University of Florida GeoPlan Center makes no representations or warranties about the quality or suitability of the materials, either expressly or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, or non-infringement. The University of Florida GeoPlan Center shall not be liable for any damages suffered as a result of using, modifying, contributing or distributing the materials.
A note about data scale:
Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modeling purposes. Please be sure you are using the best available data.
1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger.
Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our webpage at: <http://geoplan.ufl.edu/education.html>

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: SHP

Format_Version_Number: Arcview 9.x shapefile

File_Decompression_Technique: no compression applied

Transfer_Size: 101.545

Digital_Transfer_Option:

Offline_Option:

Offline_Media: CD-ROM

Turnaround: As soon as possible

Custom_Order_Process: None

Technical_Prerequisites:

This data is intended for use with a Geographic Information Systems or Remote Sensing software package.

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: unknown

Metadata_Reference_Information:

Metadata_Date: 20110812

Metadata_Review_Date: 20060213

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Florida Department of Environmental Protection, Florida Geological Survey

Contact_Person: David Anderson

Contact_Position: GIS Analyst

Contact_Address:

Address_Type: mailing and physical address

Address: 903 W. Tennessee St., Gunter Bldg. MS720

City: Tallahassee

State_or_Province: Florida

Postal_Code: 32304

Country: United States

Contact_Voice_Telephone: 850.488.4191

Contact_Facsimile_Telephone: 850.488.8086

Contact_Electronic_Mail_Address: David.Anderson@dep.state.fl.us

Hours_of_Service: Mon-Fri, 8:00am to 5:00pm

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Access_Constraints: None

Metadata_Use_Constraints: None

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile