Digital elevation model is a 3d representation of a terrain. Ned data are available from the national map viewer as 1 arcsecond approximately 30 meters for the conus, and at and 19 arcseconds approximately 10 and 3 meters, respectively for parts of the. High quality digital elevation data will support the agency business activities by improving employee effectiveness and efficiency in providing assistance to our customers through the use of digital elevation models dem, hillshade, slope, and contour map and data products. Under the data sets tab, select digital elevation srtm srtm 1arcsecond global. Geographic information systems gis data for the us nationwide. Nationally, usgs surfacewater data includes more than 850,000 station years of timeseries data that describe stream levels, streamflow discharge, reservoir and lake levels, surfacewater quality, and rainfall. How to download free digital elevation model dataset dem from usgs to download dem. Interagency elevation inventory displays highaccuracy topographic and bathymetric data for the united states and its territories.
The original raw open data from us geological survey srtm 1arc, nasa and meti aster gdem and european union eudem has been modified, adapted and overlaid to fill the gaps and provide a. The inventory provides an important central location for information about elevation data sets and decreases duplicate data collection efforts. Elevation data provides height above the sea level in meters for every single place in the world, measured for regions of approximately 30x30 meters. National land cover database nlcd data can be downloaded at the mrlc website. The 3d elevation program 3dep products and services available through. Digital elevation models dems, orthoimagery, and land cover. Download digital terrain dem digital elevation model and.
The 3d elevation program 3dep provides elevation data for the national map and basic elevation information for earth science studies and mapping applications. This catalog of publicly available, highaccuracy elevation data for the united states and its territories is collaboratively maintained by six federal agencies. The usgs national elevation dataset ned was developed by merging the highest resolution, best quality digital elevation model dem data available across the united states into a seamless raster format. We dont have to do hectic work like this as webgis provides us with readymade digital elevation data. It is generated by collecting elevation points of terrain. This interface attempts to ease the pain of downloading 30meter resolution elevation data from the shuttle radar topography mission click on yellow tiles to download their corresponding data tiles come as zipped srtmhgt files at 1arcsecond resolution 3601x3601 pixels in a latitudelongitude projection, downloaded from nasa servers. Digital elevation models digital elevation model dem data are arrays of regularly spaced elevation values referenced horizontally either to a universal transverse mercator utm projection or to a geographic coordinate system. Ned was developed by merging the highest resolution, best quality digital elevation model dem data available across the united states into a seamless. The usgs 3d elevation program 3dep datasets from the national map are the primary elevation data product produced and distributed by the usgs.
These data were collected seperately than the statewide collection following hurricane floyd, and on multiple dates since the mid90s through the. Data download texas natural resources information system. The map layers and tools in this group are available to organizational accounts to use in arcgis desktop, the. Interagency elevation inventory shows availability of highaccuracy topographic and bathymetric data for the united states and its territories. Lidar point cloud data is also available over many areas of the us. Quickfacts provides statistics for all states and counties, and for cities and towns with a population of 5,000 or more. The dems were made from multiple lidar collection projects. The national map supports data download, digital and print versions of.
The map and data products are searchable through the download application training video lessons 4ad and the mobile application. The project is a collaborative effort between noaa and the u. Then, bang away at the usgs national elevation dataset query service for the elevation of a given latlong. Elevation software free download elevation top 4 download.
The 3dep data holdings serve as the elevation layer of the national map, and provide foundational elevation information for earth science studies and mapping applications in the united states. Usgs is a primary source of geographic information systems gis data. The data are collected by automatic recorders and manual field measurements at installations across the nation. The data, hosted by the noaa office for coastal management, can be customized and requested for free download through a checkout interface. The new lidarderived ned at 3meter resolution is rapidly being produced for the full country and us territories and protectorates as well. The geospatial team of grand canyon monitoring and research center maintains an enterprise. Webgis is where you can find all the leading information and resources for geographical information systems. Integrated topobathymetric elevation models are also available for some areas of the us, which are continuoussurface raster models derived from multiple sources including topographic lidar, topobathymetric lidar, sonar. Users can also download static versions of charts and tables in pdf or png image files.
The data is published for download here, but its sliced into thousands of small files, and i dont see an ftp option for more efficient downloading. Geological survey, with contributions from the federal. Find the elevation and coordinates of any location on the topographic map. You can download the aster dem data for free from the usgs earth. Click the download link lowerleft of the search result text and youll see a list of available data sets, just check elevation, choose your format, and click next. Lidar data is available for download for the outer banks and most of the us coastline from the noaa digital coast website. If you have waited more than ten seconds and you still see this message, please click the link above to proceed to the new site. The national map download client allows free downloads of public domain contour data in either esri file geodatabase or shapefile formats. Any downloading and use of these data signifies a users agreement to. Elevation data sources nc state university libraries. The data access viewer dav allows a user to search for and download elevation, imagery, and land cover data for the coastal u.
High resolution bareearth digital elevation models dem are available for the areas shown. Plots are automatically georeferenced in kml files. The national elevation dataset ned is a seamless mosaic of bestavailable usgs elevation data. Our data and information is presented both spatially and geographically including the national map, earth explorer, glovis, landsatlook, and much more. Data are typically available at a resolution of 1 meter to 30 meters depending on the location. Opentopography us interagency elevation inventory data. The national map viewer provides visualization and download of all eight primary themes of the national map data sets, including us topo elevation data sets and historical topographic map products. Folder names and organization have been changing, so some of the paths given in the readme files need updating. The 3dep data holdings serve as the elevation layer of the national map, and.
The 3dep program provides a variety of resolution raster elevation data of the conterminous united states, alaska, hawaii, and the island territories. Nrcs is a member agency of the national digital elevation program. Elevation data can also be used to create profiles, perform viewshed analysis, and define watersheds by using an available collection of analysis tools. Srtm dem data is being housed on the usgs earth explorer. This site allows the user to access imagery, contours, and dem datasets at no charge. For this article, well focus on dems as a generic format of elevation data in digital form. As of the fall of 2003, 30meter digital elevation data exist for the conterminous united states, with various scales for alaska, hawaii, and u.
This new elevation data called global multiresolution terrain elevation data 2010 gmted2010, replaces the thirty year old gtopo30 terrain model. Laz in cloud when exporting lidar data urls to text from the cart the user can specify whether to include files in laz only, las only or both formats if both types are present in the cart. The national map data download and visualization services. The 3d maps are rendered in opengl by combining map tile from various sources with elevation data. Were proud to offer a simple, accurate and uptodate database of united states cities and towns. In addition, both topobathymetric lidarbased dems and lpc data products are available for very limited river areas in the us. But heres a usgs earth explorer download guide to help you get started. A 2 foot resolution digital elevation model dem is available for viewing, download and as an image service. You will be transferred to the new site in a moment. A hillshade image is also available for viewing and download. Nys its gis program office will be working to make.
Digital elevation data are available through the national map download client. Gmted2010 is a suite of seven raster data products. Elevation software free download elevation top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices. In late 2014, the united states government released the highest. Geological survey usgs and provide coverage in 1 by 1 degree blocks with approximately 90 by 90 meter resolution for all of the contiguous united states, hawaii, and limited portions of alaska. Elevation mapper elevation map creator, global elevation data a unique application to create customized digital elevation maps. Geological survey, with contributions from the federal emergency management agency, u. Download dems at the discover gis data ny application. Some of the data sets such as the rd arcsecond and 1 arcsecond data set are derived from. These digital elevation model dem data files are produced by the u.
The maps can be displayed like classic map north up or with automatic rotation gps orientation and compass orientation current features. The usgs earth explorer is a similar tool to the usgs global visualization viewer glovis in. The site will email you a link, since all the county and state ned data is prepackaged into zip files you should get a download link pretty quickly. Over 107,000 cities and towns from all 50 states, dc, puerto. The readmes will be updated once the names and organization stabilize please let us know gisinfo.
The national elevation dataset ned is a seamless raster product primarily derived from usgs 10 and 30meter digital elevation models dems. Hydrosheds is based on highresolution elevation data obtained during a space shuttle. See our dataset list for a brief explanation of these products. Data downloads are available in csv and json formats. The 3dep data holdings serve as the elevation layer of the national map, and provide foundational elevation information for earth science studies and mapping applications in.