SINKHOLES OF FLORIDA

Metadata also available as - [Questions & Answers]

Metadata:

Identification_Information
Data_Quality_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Subsurface Evaluations, Inc.
Publication_Date: 19920000
Title: SINKHOLES OF FLORIDA
Edition: 20010000
Geospatial_Data_Presentation_Form: SHAPE
Online_Linkage: <http://www.subsurfaceevaluations.com/>

Description:

Abstract:: This dataset contains a point coverage of sinkhole locations for the State of Florida.
Purpose:: Subsurface Evaluations, Inc., is an independent geological consulting firm providing high-tech , specialty , geophysical surveys and hydrogeological evaluations, as a subcontractor, to leading geotechnical engineering companies, environmental consultants and government agencies. Our mission is to provide specialty-expertise in sinkhole development potential, ground-water flow through caves and springs, and detection of buried man made environmental liabilities.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 19920000

Currentness_Reference: Ground Condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: Irregular

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: Sinkholes
Theme_Keyword: Sinkhole Attributes
Theme_Keyword: Planning

Place:

Place_Keyword_Thesaurus: NONE
Place_Keyword: Florida
Place_Keyword: Sinkhole locations

Temporal:

Temporal_Keyword_Thesaurus: NONE
Temporal_Keyword: 1990's

Access_Constraints: NONE

Use_Constraints:

THE DATA INCLUDED IN THIS APPLICATION ARE BASED ON INTERPRETATION OF AVAILABLE INFORMATION AND SHOULD NOT BE CONSTRUED AS LEGALLY BINDING.

Scale is an important factor in data usage. Certain scale data sets are not suitable for some projects, analysis, or modeling purposes. Please be sure you are using the best available data.

1:24000 scale data sets 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 data sets are recommended for projects that are at the multi-county or regional level. 1:250000 scale data sets 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 analyses. 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 web pages at: <http://www.geoplan.ufl.edu/education.html>

Native_Data_Set_Environment:

For more information, visit: <http://www.subsurfaceevaluations.com/>

Cross_Reference:

Citation_Information:

Originator: Subsurface Evaluations, Inc.
Publication_Date: 19920000
Title: Unavailable
Geospatial_Data_Presentation_Form: Map

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:: Relied on the integrity of the attribute information within the original data layer.

Logical_Consistency_Report:

Certain node/geometry and topology (GT)-polygon/chain relationships are collected or generated to satisfy topological requirements. Some of these requirements include: chains must begin and end at nodes, chains must connect to each other at nodes, chains do not extend through nodes, left and right GT-polygons are defined for each chain element and are consistent throughout the transfer, and the chains representing the limits of the file (neatline) are free of gaps. The neatline is generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data outside the enclosed region are ignored and all data crossing these geographically straight lines are clipped at the neatline. (Exception: During the QA/QC process all data is examined and if errors are found and corrections are possible, then data is corrected accordingly. This process is documented in the Process_Step.) Data within a specified tolerance of the neatline are snapped to the neatline. Neatline straightening aligns the digitized edges of the digital data with the generated neatline, that is, with the longitude/latitude lines in geographic coordinates. All internal polygons are tested for closure. Certain attributes and/or entities, e.g. closure line, convey data quality information. When information to be encoded in the subfield is known to be not applicable (undefined, not relevant), then the subfield is valued by a string of "9s"; and when the information to be encoded is relevant but unknown (or missing), then the subfield is valued by a string of "9s."

Completeness_Report:

Data was orginally copiled by the Florida Sinkhole Research Insititute. It was updated by Subsurface Evaluations Inc. of Tampa Florida. Certain node/geometry and topology (GT)-polygon/chain relationships are collected or generated to satisfy topological requirements. Some of these requirements include: chains must begin and end at nodes, chains must connect to each other at nodes, chains do not extend through nodes, left and right GT-polygons are defined for each chain element and are consistent throughout the transfer, and the chains representing the limits of the file (neatline) are free of gaps. The neatline is generated by connecting the four corners of the digital file, as established during initialization of the digital file. All data outside the enclosed region are ignored and all data crossing these geographically straight lines are clipped at the neatline. (Exception: During the QA/QC process all data is examined and if errors are found and corrections are possible, then data is corrected accordingly. This process is documented in the Process_Step.) Data within a specified tolerance of the neatline are snapped to the neatline. Neatline straightening aligns the digitized edges of the digital data with the generated neatline, that is, with the longitude/latitude lines in geographic coordinates. All internal polygons are tested for closure. Certain attributes and/or entities, e.g. closure line, convey data quality information. When information to be encoded in the subfield is known to be not applicable (undefined, not relevant), then the subfield is valued by a string of "9s"; and when the information to be encoded is relevant but unknown (or missing), then the subfield is valued by a string of "9s."

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Subsurface Evaluations, Inc.
Publication_Date: 19920000
Title: Unavailable
Geospatial_Data_Presentation_Form: Map

Source_Scale_Denominator: N/A

Type_of_Source_Media: Map

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 19920000

Source_Currentness_Reference: Ground Condition

Source_Citation_Abbreviation: SE, INC.

Source_Contribution: Data representing sinkholes within the state of Florida.

Process_Step:

Process_Description:: The process step describes, in general, the process used in the production of data sets. The originating agencies created the original spatial coverage. GeoPlan, during the QA/QC process included the following aspects: (1) Set tolerances to Geoplan Standards (2) Added item TRS based on existing township, range and section items. (3) Reprojected from decimal degree lat/long to FGDL Albers. (4) Added Devil's Millhopper sinkhole to coverage and inserted known information.
Process_Date: 20000000

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: 400000.00000
False_Northing: 0.00000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.001024
Ordinate_Resolution: 0.001024

Planar_Distance_Units: METERS

Geodetic_Model:

Horizontal_Datum_Name: D_North_American_1983_HARN

Ellipsoid_Name: GRS1980
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: SNKHLE.DBF
Entity_Type_Definition: Database File
Entity_Type_Definition_Source: None

Attribute:

Attribute_Label: FSRI_CODE

Attribute_Definition: Internal code used by Florida Sinkhole Research Institute.

Attribute_Definition_Source: SE, INC. record