LIDAR 2004 Maryland (Anne Arundel, Charles, Howard and St. Mary's Counties) LiDAR Mapping
Maryland Department of Natural Resources. 2005. LIDAR 2004 Maryland (Anne Arundel, Charles, Howard and St. Mary's Counties) LiDAR Mapping. Maryland Department of Natural Resources. Anne Arundel, Charles, Howard and St. Mary's Counties, MD, including Thomas Stone National Historic Site
Bare-earth LiDAR data Maryland (Anne Arundel, Charles, Howard and St. Mary's Counties) in LAS format. Light Detection and Ranging (LIDAR) is a method of locating objects on the ground using aerial-borne equipment. It is similar to RADAR or SONAR in that the two-way travel time of an energy beam reflected off an object is precisely measured, but this technology uses laser light instead of radio or sound waves. This technology has proven very useful in remote sensing of the earth. It can be used for determining elevations of both the earth's surface and items (natural and man-made) on the surface. Analysis of LIDAR data is used in detailed modeling of the earth's surface for drainage and floodplain studies, determining how a new structure will affect views from various locations, shoreline erosion studies, and other reasons. This data set contains only the bare earth mass points. Bare earth points represent ground features. Features that are above ground, such as buildings, bridges, tree tops, etc, have been eliminated. Mass points may appear to have "holes" with no elevation values in areas where the surface could not be determined, such as very dense forests or urban areas. This data set is an LAS format file containing LIDAR point cloud data with 2019663 points. The data set was generated from a larger data set and includes all valid points within the requested geographic bounds.
- Type
- Geospatial Dataset
- Authors
- Maryland Department of Natural Resources
- Date of Issue
- 2005
- Publisher
- Maryland Department of Natural Resources
- Units
- NCBN , THST
- Keywords
- bald earth, Bare Earth, Bathymetry/Topography, DEM, Digital Elevation Model, elevation and derived products, elevation model, first return, gridded DEM, last return, Lidar, Surface Model, terrain model
- Subjects
- Ecological Framework: Geology and Soils | Geomorphology | Coastal/Oceanographic Features and Processes