FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
TITLE: COASTAL HAZARDS OF THE STATE OF FLORIDA
Geodataset Name: CSTHA Geodataset Type: SHAPE Geodataset Feature: POLYGON
GENERAL DESCRIPTION:
This dataset contains cartographic representation of the coastal counties in the the State of Florida that are vulnerable to coastal erosion and inundation from sea level rise or storm surge.
DATA SOURCE(S): NOAA Coastal Services Center SCALE OF ORIGINAL SOURCE MAPS: N/A DATE OF AUTOMATION OR SOURCE: 2000 GEODATASET EXTENT: State of Florida
FEATURE ATTRIBUTE TABLES:
Datafile Name: CSTHAZ.DBF ITEM NAME WIDTH TYPE PRECISION Shape 8 SHAPEPOLY 0 Area 19 DECIMAL 5 Perimeter 19 DECIMAL 5 Csthaz_ 11 DECIMAL 0 Csthaz_id 11 DECIMAL 0 Whavg 19 DECIMAL 2 Whmax 19 DECIMAL 2 Whsd 19 DECIMAL 2 Eravg 19 DECIMAL 2 Ermax 19 DECIMAL 2 Ermin 19 DECIMAL 2 Ernum 4 DECIMAL 0 Elavg 19 DECIMAL 2 Elmax 19 DECIMAL 2 Elmin 19 DECIMAL 2 Elnum 4 DECIMAL 0 Gm 4 DECIMAL 0 Gl 4 DECIMAL 0 Trmax 19 DECIMAL 2 Travg 19 DECIMAL 2 Trlvl 19 DECIMAL 2 Trnum 4 DECIMAL 0 Slr 19 DECIMAL 2 Slg 19 DECIMAL 2 Slc 19 DECIMAL 2 Sls 19 DECIMAL 2 Slyr 4 DECIMAL 0
FEATURE ATTRIBUTE TABLES CODES AND VALUES:
ITEM ITEM DESCRIPTION
Shape Data attribute inherent to the ESRI shapefile format,
which defines the data as a point, polyline, or polygon.
Area Area of polygon
Perimeter Perimeter of polygon
Csthaz_ Internal feature number
Csthaz_id Feature identification number
Whavg 20-year mean wave height(m) [9999.99 = null value]
Whmax Maximum significant wave height(m) [9999.99 = null value]
Whsd Standard deviation of 20-year mean wave height [9999.99 = null value]
Eravg Mean long-term erosion trend(m) [9999.99 = null value]
Ermax Maximum long-term erosion trend(m) [9999.99 = null value]
Ermin Minimum long-term erosion trend(m) [9999.99 = null value]
Ernum Number of grid cells used to calculate erosion trends
Elavg Mean elevation of 5' x 5' grid cells(m) [9999.99 = null value]
Elmax Maximum elevation of grid cells(m)
Elmin Minimum elevation of grid cells(m)
Elnum Number of 5' x 5' grid cells used to calculate elevation
Gm Ordinal value indicative of type and suceptibility of landforms to
inundation and erosion
Gl Ordinal value indicative of type and resistance of rocks to erosion
Trmax Maximum tide range in 1988(m)
Travg Avg. mean tide range in 1988(m)
Trlvl Average mean tide level for all tide stations within grid cell(m)
Trnum Number of tide stations in grid cell
Slr Relative sea level trend (mm/yr)
Slg Long-term geological trend from 14C data (mm/yr)
Slc Tide-gauge data corrected for geologic trends
Sls Local subsidence trend
Slyr Years of record used in sea level trend
USER NOTES:
The Ocean Planning Information System (OPIS) is a prototype online regional marine GIS covering the vast ocean area bounded by the Carolinas, Georgia, Florida, the exclusive economic zone, and various maritime boundaries. OPIS was developed to provide coastal and ocean resource managers in the Southeast access to regional digital geographic mapping information and technologies to facilitate management framework. Special emphasis is placed on the federal ocean and coastal management and governance framework, and efforts are ongoing to develop similar data sets for state and local level policy frameworks. The Coastal Hazards Database for the U.S. East and Gulf Coasts, and the corresponding coastal vulnerability indices that may be derived, may be used by coastal planning, research, and management agencies to identify shorelines at risk from coastal erosion and inundation. This database should be used to identify areas where further study is necessary. Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modelling 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 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
FGDL QUALITY ASSURANCE STATUS:
-Reprojected data to FGDL Albers HPGN (See "Map Projection Parameters" below) -Upcased all character records
REFERENCES:
NOAA Coastal Services Center Ocean Planning Information System (OPIS) http://www.csc.noaa.gov/opis/
DATA LINEAGE SUMMARY:
Downloaded dataset from http://www.csc.noaa.gov/opis/html/data.htm as an interchange file and imported to coverage using ArcToolBox. Converted from Coverage to Shapefile, then reprojected and clipped to the extent of Florida. All lowercase character items within attribute table were then upcased. When received, data was in Albers projection, Datum: NAD83, Spheroid: GRS80, Units: Decimal Degrees.
MAP PROJECTION PARAMETERS:
Projection ALBERS Units METERS Datum HPGN Spheroid GRS1980 1st standard parallel 24 0 0.000 2nd standard parallel 31 30 0.000 central meridian -84 0 0.000 latitude of projection's origin 24 0 0.000 false easting (meters) 400000.00000 false northing (meters) 0.00000
DATA SOURCES CONTACT(S):
Name: NOAA Coastal Services Center
Abbr.name: NOAA
Address: 2234 South Hobson Avenue
Phone: (843)740-1210
Fax: (843)740-1224
Web site: http://www.csc.noaa.gov/
Ftp site: http://www.csc.noaa.gov/opis/html/data.htm
Email: csc@csc.noaa.gov
FGDL CONTACT:
Name: Florida Geographic Data Library
Abbr. Name: FGDL
Address: Florida Geographic Data Library
431 Architecture
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