Content Summary: The USGS National Elevation Dataset (NED) has been developed by merging the highest-resolution, best-quality elevation data available across the United States into a seamless raster format. NED is the result of the maturation of the USGS effort to provide 1:24,000-scale Digital Elevation Model (DEM) data for the conterminous US and 1:63,360-scale DEM data for Alaska. The shaded relief display is derived from NED using a hill-shade technique.
Content Type: Live data & maps

Content Summary: The USGS National Elevation Dataset (NED) has been developed by merging the highest-resolution, best-quality elevation data available across the United States into a seamless raster format. NED is the result of the maturation of the USGS effort to provide 1:24,000-scale Digital Elevation Model (DEM) data with NAD83 datum for the conterminous US and Hawaii, and 1:63,360-scale DEM data with NAD27 datum for Alaska.
Content Type: Downloadable data

Content Summary: The LIDAR Data Retrieval Tool (LDART) is a Web-based application that the NOAA Coastal Services Center developed to allow its customers to obtain topographic LIDAR data from its archive. LDART allows users to customize their output data set, interactively choosing geographic boundaries, projections, horizontal and vertical datums, and output file formats. LDART can be used by coastal managers, coastal geologists, and the general public to generate custom elevation data sets for use in decision making, research, and for general information.

Content Summary: There has been increasing demand for research utilizing all information generated from lidar remote sensing data and not just bare earth digital elevation models (DEMs). While this technology has been a proven mapping tool, effective for generating bare earth DEMs,research on using the entire point cloud of this remote sensing data for scientific applications have been slowed by: - The high cost of collecting lidar - A steep learning curve on research and understanding involving utilizing the entire point cloud. The goal of CLICK is to facilitate data access, user coordination and education of lidar remote sensing for scientific needs.

Content Summary: The National Digital Elevation Program (NDEP) was established to promote the exchange of accurate digital land elevation data among government, private, and non-profit sectors and the academic community and to establish standards and guidance that will benefit all users.

Content Summary: The National Map is a consistent framework for geographic knowledge needed by the Nation. It provides public access to high-quality, geospatial data and information from multiple partners to help support decisionmaking by resource managers and the public.

Content Summary: The goal of FEMA's Map Modernization Plan is to upgrade the 100,000 panel flood map inventory.

Content Summary: This Coastal Relief Gridded database provides the first comprehensive view of the US Coastal Zone; one that extends from the coastal state boundaries to as far offshore as the NOS hydrographic data will support a continuous view of the seafloor. In many cases, this seaward limit reaches out to, and in places even beyond the continental slope.

Content Summary: NOAA National Geophysical Data Center is engaged in a program to compile Great Lakes bathymetric data and make them readily available to the public, especially to the communities concerned with Great Lakes science, pollution, coastal erosion, response to climate changes, threats to lake ecosystems, and health of the fishing industry.

Content Summary: NDEP Agency Planned Elevation activities

Content Summary: NDEP Agency Planned Elevation Project Form

Content Summary: International Organisation for Standardisation Technical Committee 211 ISO 19123 - Geographic information - Schema for coverage geometry and functions factsheet

Content Summary: Spatial Data Transfer Standard - Raster Profile with Basic Image Interchange Format (BIFF) Extension

Content Summary: Standards for the Framework theme (cadastral, digital orthoimagery, elevation, geodetic control, government unit boundaries, hydrography, and transportation), and a base standard for the entire set.

Content Summary: FGDC Content Standard for Framework Land Elevation Data (DRAFT)

Content Summary: Standard that describes the USGS Tiled (7.5 min x 7.5 min) Elevation data

Content Summary: The purpose of the Abstract Specification is to create and document a conceptual model sufficient enough to allow for the creation of Implementation Specifications for Coverages.

Content Summary: The purpose of this document is to provide the member agencies of the National Digital Elevation Program (NDEP), as well as nonmember agencies, with guidelines and recommendations for acquiring digital elevation data in any of its various forms.

Content Summary: When completed, this handbook will provide guidelines and a list of best practices for the professional use of lidar mapping as currently encountered by the majority of ASPRS members and their clients.

Content Summary: The purpose of this document is to provide the member agencies of the National Digital Elevation Program (NDEP), as well as nonmember agencies, with guidelines and recommendations for acquiring digital elevation data in any of its various forms.

Content Summary: When completed, this handbook will provide guidelines and a list of best practices for the professional use of lidar mapping as currently encountered by the majority of ASPRS members and their clients.

Content Summary: MICRODEM is a microcomputer mapping program for the visualization of DEMs. MICRODEM was written by Professor Peter Guth of the Oceanography Department, U.S. Naval Academy

Content Summary: dlgv32 Pro is a limited-feature version of commercial software called Global Mapper which was created from the original dlgv32 source code.

Content Summary: Collection of Elevation Visualization tools

Content Summary: Useful 3rd Party Data Conversion Tools for the GIS, 3D and Imagery Entrepreneur...

Content Summary: The DEM Users Manual is designed to help potential users of digital elevation data to understand and articulate their requirements so that their expectations are satisfied or exceeded.

Content Summary: Geospatial Solutions - Elevation - The XYZs of Digital Elevation Technologies

Content Summary: The National Elevation Dataset is a seamless, consistent, public domain, multi-resolution elevation dataset.