Other products such as building footprints, transmission lines and towers, vegetation, etc. and can be optionally upgraded to a DTM (Digital Terrain Model) and/or contour product. USGS National Elevation Dataset - Many Florida LiDAR projects have contributed to the available 1/9 arc second data.
#FLORIDA DIGITAL TERRAIN MODEL USGS DOWNLOAD#
Visit GIS Download Library to find available data. In some cases, such as Hawaii, 1:100,000 scale maps are also used. Sanborn has developed a custom Lidar Mapping production workflow which adheres to the specifications outlined in the USGS Lidar Base. Johns River Water Management District GIS - has published digital elevation models for areas of Brevard, Clay, Putnam, and Indian River delivery areas. The LULC mapping program is designed so that standard topographic maps of a scale of 1:250,000 can be used for compilation and organization of the land use and land cover data. Credit: USGS, 1987 The preferred method for producing the elevation values that populate DEM profiles is interpolation from DLG hypsography and hydrography layers (including the hydrography layer enables analysts to delineate valleys with less uncertainty than hypsography alone). The United States Geological Survey (USGS) provides these data sets and associated maps as a part of its National Mapping Program. Figure 7.8.2 Arrangement of elevation profiles in a small scale USGS Digital Elevation Model. The created DEM represents more than 6. The Land Use and Land Cover (LULC) data files describe the vegetation, water, natural surface, and cultural features on the land surface. Digital surface model (first reflective surface) Orthometric height Digital terrain model (bare earth) Ellipsoid height Bathymetric surface Point cloud Other Mixed surface Model Types (1. This digital elevation model (DEM) is based on data from the Lunar Orbiter Laser Altimeter (LOLA Smith et al., 2010), an instrument on the National Aeronautics and Space Agency (NASA) Lunar Reconnaissance Orbiter (LRO) spacecraft (Tooley et al., 2010). WebGIS - Free LULC Data - Geographic Information Systems Resource - GIS