Elevation Datasets 2012, Harpers Ferry National Historical Park
2014. Elevation Datasets 2012, Harpers Ferry National Historical Park. National Capital Region, National Park Service. These datasets cover the area in and around Harpers Ferry National Historical Park, which is located in sections of West Virginia, Virginia, and Maryland.
This reference includes datasets related to elevation collected in 2012 for the area in and around Harpers Ferry National Historical Park in West Virginia, Virginia, and Maryland. The datasets include a bare earth digital elevation model (DEM) raster, hillshade raster, and topographic contours shapefiles at 2-foot, 5-foot, and 10-foot intervals. These datasets were derived from the National Elevation Dataset (NED) (1/9 arc-second resolution) maintained by the U.S. Geological Survey. These tiles of the National Elevation Dataset (NED) are 1/9 arc-second resolution. The National Elevation Dataset (NED) serves the elevation layer of The National Map, and provides basic elevation information for earth science studies and mapping applications in the United States. Scientists and resource managers use NED data for global change research, hydrologic modeling, resource monitoring, mapping and visualization, and many other applications. The NED is an elevation dataset that consists of seamless layers and a high resolution layer. Each of these layers are composed of the best available raster elevation data of the conterminous United States, Alaska, Hawaii, territorial islands, Mexico and Canada. The NED is updated continually as new data become available. All NED data are in the public domain. The NED are derived from diverse source data that are processed to a common coordinate system and unit of vertical measure. These data are distributed in geographic coordinates in units of decimal degrees, and in conformance with the North American Datum of 1983 (NAD 83). All elevation values are in meters and, over the continental United States, are referenced to the North American Vertical Datum of 1988 (NAVD 88). The vertical reference will vary in other areas. NED data are available nationally (except for Alaska) at resolutions of 1 arc-second (approx. 30 meters) and 1/3 arc-second (approx. 10 meters), and in limited areas at 1/9 arc-second (approx. 3 meters). In most of Alaska, only lower resolution source data are available. As a result, most NED data for Alaska are at 2-arc-second (approx. 60 meters) grid spacing. Part of Alaska is available at the 1- and 1/3-arc-second resolution from IFSAR collections starting in 2010. Plans are in place for collection of statewide IFSAR in Alaska through 2016.
- Type
- Geospatial Dataset
- Date of Issue
- 2014
- Publisher
- National Capital Region, National Park Service
- Units
- HAFE
- Keywords
- 1/9 arc-second DEM, 15-minute DEM, Bare Earth, Cartography, DEM, Digital Elevation Model, DIGITAL MAPPING, digital terrain model, Elevation, GEODATA, GIS, grid, HAFE, Harpers Ferry National Historical Park, high resolution, Hydro-Flattened, IFSAR, Interferometric Synthetic Aperture Radar, Lidar, Light Detection And Ranging, Mapping, National Capital Region, National Elevation Dataset, National Park Service, NCR, NED, NPS, raster, terrain elevation, Topographic Surface, Topography, U.S. Geological Survey, United States, US, USGS