Geodataset Name:       SNKHLE_TYPES
Geodataset Type:       SHAPEFILE
Geodataset Feature:    POLYGON

DATA SOURCE(S):                    Florida Department of Environmental Protection
SCALE OF ORIGINAL SOURCE MAPS:     Unknown
DATE OF AUTOMATION OF SOURCE:      1985
GEODATASET EXTENT:                 STATE OF FLORIDA

FEATURE ATTRIBUTE TABLES:

Datafile Name: SNKHLE_TYPES.DBF

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item	Item Description
SHAPE	Feature geometry.
AREA_DESC	Internal feature number.
DESC_1	Short description of area
DESC_2	Detailed description of area
AREA	Area of entity
OBJECTID	Internal feature number.
PERIMETER	Perimeter of entity
Shape	Feature geometry.
FID	Unique Identifier
DESCRIPT	Based on "AREA_DESC"

USER NOTES:

All attributes created during the creation process were visually verified by a geologist and 2 GIS personnel.

FDEP FGS data is provided as a public service. FGS makes every effort to provide accurate and complete data. Metadata is provided for all datasets and no data should be used without first reading and understanding the limitations of the data. The State of Florida Department of Environmental Protection provides NO WARRANTY for the availability or accuracy of this GIS data.

A note concerning data scale: Scale is an important factor in data usage. Certain scale datasetsare 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. 1:250000 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 analyses. Every effort has been made to supply the user with data documentation. For additional information, see the References sectionand 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

REFERENCES:

Florida Department of Environmental Protection http://www.dep.state.fl.us/gis/datadir.asp

DATA LINEAGE SUMMARY:

1. Used Adobe Acrobat digital version of Map titled "Sinkhole Type, Development and Distribution in Florida", also known as Map Series 110 and published 1985 by Florida Department of Natural Resources, Bureau of Geology and exported as uncompressed TIFF image at 300 Dot per inch. 2. Used Autocad Map 2000 to "Rubbersheet" the image using the intersections of countylines on the TIFF with the intersections of the vector county coverage from Florida Department of Environmental Protection (FDEP), Bureau of Information Services (BIS). This vector coverage was digitized from scanned Noaa Charts and 1:24k Digital Line Graphs according to BIS metadata. A rough check of the rubbersheeted image showed differences of no more than 2000 meters plus or minus which were judged by Tom Scott to be not significant. 3. Brought "Rubbersheeted" image into Arcview 3.2a and digitized polygons to match the Areas shown as Areas I, II, III and IV. Then "clipped" the polygons with the said vector county coverage using Arcview 3.2a Geoprocessing wizard. Process Date: September, 2002 Metadata imported. Process Date: Winter, 2002 Data originally released by the Florida Department of Environmental Protection in 2002. When received, the data was in the following projection: Albers Conical Equal Area, Units: Decimal Degrees. The original data was limited to territories within the State of Florida. Process Date: 20050810 Data was downloaded from FDEP website in shapefile format to GeoPlan in August 2005. GeoPlan, during the QA/QC process, included the following aspects: (1) Reprojected data to FGDL Albers (2) Added DESCRIPT item based on AREA_DESCRIP (3) Area and perimeter fields updated for metric units. Process Date: 20050810

MAP PROJECTION PARAMETERS:

Projection                          ALBERS
Datum                               HPGN
Units                               METERS
Spheroid                            GRS1980
1st Standard Parallel               24  0  0.000
2nd Standard Parallel               31 30  0.000
Central Meridian                   -84 00  0.000
Latitude of Projection's Origin     24  0  0.000
False Easting (meters)              400000.00000
False Northing (meters)             0.00000

DATA SOURCE CONTACT (S):

Name:
Abbr. Name:
Address:


Phone:

Web site:
E-mail:
Contact Person:
         Phone:
        E-mail:

Florida Department of Environmental Protection
FDEP
2600 Blair Stone Road
Tallahassee, Florida
32399
850-245-8238


http://www.dep.state.fl.us/gis/datadir.asp

GIS Section

Name:                   FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name:             FGDL
Address:                Florida Geographic Data Library
                        431 Architecture Building
                        PO Box 115706
                        Gainesville, FL  32611-5706
Web site:               http://www.fgdl.org

Contact FGDL: 

      Technical Support:	        http://www.fgdl.org/fgdlfeed.html
      FGDL Frequently Asked Questions:  http://www.fgdl.org/fgdlfaq.html
      FGDL Mailing Lists:		http://www.fgdl.org/fgdl-l.html
      For FGDL Software:                http://www.fgdl.org/software.html