The current data set is the result of revisions to the 1990 version. Some areas, including inland areas where there is no chart coverage and areas that have needed more accuracy for individual projects, have been digitized from USGS 7.5-minute Quadrangles and Digital Orthophoto Quarter Quadrangles (DOQQs).
The source scale varies from 1:10,000 to 1:80,000.
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>
When received this shape file was a polygon. It was converted to polyline using the polygon to line function in ArcTool Box. The resulting polyline file was edited to remove the Northern and Western border of the state that did not correspond to any coastline. This was done using the split line tool while editing.
- Reprojected data to FGDL Albers HPGN - ATTRIBUTE field was recalculated to COASTLINE from LAND - Added a DESCRIPT field to attribute table based on ATTRIBUTE - Added a FGDLAQDATE field based on date received from source - Renamed shapefile from fl_40k_nowater_poly to COAST - Recalculated SHAPE.LEN using X-Tools