Coordinate system: NAD 1983 HARN StatePlane Florida North FIPS 0903 Feet
Theme keywords: environment, elevation , environment, elevation
Abstract: Severe and Significant grades used for environmental regulation of development by the City and County Growth Management departments.
Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.
Severe and Significant grades used for environmental regulation of development by the City and County Growth Management departments.
Grade was created to provide City of Tallahassee & Leon County departments with slope grade data for planning related purposes. The data is meant to be used as a guide and not to take the place of a land survey by a licensed surveyor.
TLCGIS- The information depicted in this GIS layer is the result of digital analyses performed on a database consisting of information from a variety of governmental and other credible sources. The accuracy of the information presented is limited to the collective accuracy of the database on the date of the analysis. The information is believed accurate and reasonable efforts have been made to ensure the accuracy of the data. However, TLC/GIS expressly disclaims responsibility for damages or liability that may arise from use of this data. This product is the property of Tallahassee/Leon County GIS and its use is thereby restricted.
Leon County Courthouse
301 S. Monroe Street
ESRI feature type: Simple, Geometry: Polygon, Topology:
Data set has been visually inspected. All data produced strives to meet National Mapping Accuracy Standards (NMAS).
Geographic Features Came from source
A LIDAR Digital Elevation Model (DEM) was generated based upon a 2012 flyover of the entire Leon County. In that time, there have been updated to the existing LiDAR datasets & DEM in 2005, 2006, 2007 and 2008. The DEM is based off of classified LIDAR ground points, breaklines, and the derived Triangular Irregular Netowrk (TIN). The DEM has a 5 ft grid structure, and a resampled 20 ft grid structure. The 5 ft resolution raster DEM was resampled to 20 ft. A percentrise slope surface was derived from the 20 ft resolution DEM, based upon percentage. A conditional map algebra statment was applied to the slope surface to produce a 20 ft resolution grid representing the severe and significant grades. A grid-code of 1 represents significant grades (>= 10% <= 20%). A grid-code of 2 represents severe grades (> 20%). The raster version of the grade data was converted to a double precision Raster Dataset and then converted to a shapefile. Area in square feet was attributed to the polygon features and features < 2000 sq feet were deleted as uncessary.
Internal feature number.
Different classes of Grades. 2 Grades used for this dataset.
Length of feature in internal units.
Area of feature in internal units squared.
301 S. Monroe St.
Leon County Courthouse