What types of elevation datasets are available, what formats do they. In late 2014, the united states government released the highest. The usgs elevation contours service from the national map displays contours generated for the united states at various scales. United states shapefile download free map boundary, states. Data can be ordered in a variety of formats and map projections. The project is a collaborative effort between noaa, the u.
These data may have been used as the source of updates to the arcsecond, 1arcsecond, and 2arcsecond seamless 3dep digital elevation models dems. For information regarding the coronaviruscovid19, please visit coronavirus. This elevation map of united states is free and available for download. Following are the boundary polygon map shapefile are available to download of united states of america. The national map seamless digital elevation model specifications. Knowing the location of these wells, and the populations they serve, is important for identifying heavily used aquifers, locations susceptible to contamination, and populations potentially impacted by poorquality groundwater. United states interagency elevation inventory usiei id. Department of agriculture usda data distribution web site where dem and ned data are downloadable in the utm projection, nad83 datum. National elevation dataset ned regularly updated composite of the latest digital elevation model dem data for the us, and represents the most current and highest resolution dem data available that usgs has produced, including data from the 3d elevation program. This page shows the elevation altitude information of united states, including elevation map, topographic map, narometric pressure, longitude and latitude. The ned provides seamless raster elevation data of the conterminous united states, alaska, hawaii, and the island territories. Managed by the national geospatial program ngp, 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. Although many public datasets can be obtained through websites andor public.
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 united states. Digital elevation models dem nc state university libraries. The entire united states has dem coverage at 30 meter resolution 1 arc second. May 07, 2020 this catalog of publicly available, highaccuracy elevation data for the united states and its territories is collaboratively maintained by six federal agencies. Elevation represents land height, in meters, above mean sea level. With a widevariety of resolutions and delivered file formats possible, dds can offer you the right dem product for your needs. Apr 08, 2014 the shuttle radar topography mission srtm obtained 90 meter 3 arcsecond resolution data on a nearglobal scale between 56 degrees south and 60 degrees north latitude and 30 meter 1 arcsecond resolution over united states, providing a valuable global topographic dataset. This filter will only be applied to data sets that support cloud cover filtering in the data set list denotes cloud cover support. Srtm 1 arcsecond dem data are also available for the united states. In late 2014, the united states government released the highest resolution srtm dem to the public. May 06, 2020 this is a tiled collection of the 3d elevation program 3dep and is one meter resolution. Data include interval measures of highest and lowest elevation for all 50 states, the district of columbia, and territories. Ocean areas are left unfilled for maximum flexibility by end users.
Any downloading and use of these data signifies a users agreement to. Highresolution digital elevation models are available for small regions within the united. These digital elevation model dem data files are produced by the u. You can print this contour map and use it in your projects. With these websites you can download 10 meter or 30 meter dems from the national elevation dataset for anywhere in the united states. The usgs digital elevation model dem data files are digital representations of elevation information in a raster or grid form. These specifications include requirements and standards information about source data requirements, spatial reference system, distribution tiling schemes, horizontal resolution, vertical accuracy, digital elevation model surface treatment, georeferencing, data source and tile dates, distribution and supporting file formats, void areas, metadata. The national map embodies 11 primary products and services and numerous applications and ancillary services the national map supports data download, digital and print versions of topographic maps, geospatial data services. The usgs earth explorer is a similar tool to the usgs global visualization viewer glovis in that users. Ned is designed to provide national elevation data in a seamless form with consistent datums, elevation unit, and coordinate reference system. Ned has a resolution of onethird arcsecond approximately 10 meters for much of the conterminous united states, hawaii and puerto rico in a. The national elevation dataset ned is a seamless raster product primarily derived from usgs 10 and 30meter digital elevation models dems.
North america elevation 1kilometer resolution grid. In the united states, gtopo30 data were derived from the national elevation dataset ned. 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. Geological surveys earth resources observation and science center eros. Lidar point cloud usgs national map 3dep downloadable data. The inventory provides an important central location for information about elevation data sets and decreases duplicate data collection efforts.
The national map data download and visualization services. Geospatial elevation data are used by the scientific and resource management communities for global change research, hydrologic modeling, resource monitoring, mapping, and visualization applications. Lidar point cloud usgs national map 3dep downloadable. Digital elevation data are available through the national map download client. Although many public datasets can be obtained through websites andor public repository libraries, most users still face major. The national elevation dataset ned is a raster product assembled by the u. Forest service, the national park service and the u. Dems consist of a sampled array of elevations for a number of ground positions at regularly spaced intervals. The usgs offers a central web site for downloading or ordering digital elevation data in geographic and nad83 formats via the national map. For much of the united states, the national elevation dataset contains 1 arcsecond and arcsecond 30 m and 10 m, respectively resolution data.
Governments open data here you will find data, tools, and resources to conduct research, develop web and mobile applications, design data visualizations, and more. Domestic wells provide drinking water supply for approximately 40 million people in the united states. This information includes topographic maps and geographic information system gis data for elevation, hydrography, watersheds. 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. The national map embodies 11 primary products and services and numerous applications and ancillary services the national map supports data download, digital and print versions of topographic maps.
Download this app from microsoft store for windows 10 mobile, windows phone 8. Available data include lidar, digital elevation models dem, contours and elevation points. In mexico, gtopo30 data were derived from 3arcsecond elevation data from inegi. Digital elevation models dems, orthoimagery, and land cover. Elevation map of united states topographic map altitude map. Sep 06, 2018 here you get boundary line shapefile of administrative united states and polygon shapefile of united states of states. Here you get boundary line shapefile of administrative united states and polygon shapefile of united states of states. The national map is a suite of products and services that provide access to base geospatial information to describe the landscape of the united states and its territories. The project is a collaborative effort between noaa and the u.
Some data are also available on dvdrom in the gis lab. Interagency elevation inventory shows availability of highaccuracy topographic and bathymetric data for the united states and its territories. Nationally, usgs surfacewater data includes more than 850,000 station years of timeseries data that describe stream levels, streamflow discharge, reservoir and lake. Gis datasets for the state of illinois and the united states. Not to be used for navigation, for informational purposes only. The primary goal of 3dep is to systematically collect enhanced elevation data in the form of highquality light detection and ranging lidar data over the conterminous united states, hawaii, and the u. 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. This is a tiled collection of the 3d elevation program 3dep and is one meter resolution. Which state or territory is highest and lowest is determined by the definition of high and low. In most cases, the elevations were determined from surveys and from 1. Smallscale shaded relief was created with a singledirection hillshade from gmted2010 global elevation data at 7.
Us interagency elevation inventory data opentopography. Elevations and distances in the united states usgs. Srtm version 4 cgiarcsi data voids in 90meter srtm are filled in this version. The following list is a comparison of elevation absolutes in the united states.
Click the how to link at the top of the viewer for detailed instructions on how to. Lidar point cloud data is also available over many areas of the us. This catalog of publicly available, highaccuracy elevation data for the united states and its territories is collaboratively maintained by six federal agencies. Srtm obtained elevation data on a nearglobal scale using a specially modified radar system onboard the space shuttle endeavour in february 2000. Geological survey, the federal emergency management agency, the u. 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 page shows the elevationaltitude information of united states, including elevation map, topographic map, narometric pressure, longitude and latitude. The ned assembly process involves edge matching and mosaicking elevation data into ned layers. Download free elevation data dem from the usgs national. The elevations of features and distances between points in the united states were determined from surveys and topographic maps of the u. A wealth of public domain data is available for scientists and researchers at no cost.
The original source of this elevation contour map of united states is. Geological survey, with contributions from the federal emergency management agency, u. Opentopography us interagency elevation inventory data. The data are collected by automatic recorders and manual field measurements at installations across the nation. Ned are being improved to include 10meter resolution data. 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. The shuttle radar topography mission srtm obtained 90 meter 3 arcsecond resolution data on a nearglobal scale between 56 degrees south and 60 degrees north latitude and 30 meter 1 arcsecond resolution over united states, providing a valuable global topographic dataset. Jun 11, 2019 with these websites you can download 10 meter or 30 meter dems from the national elevation dataset for anywhere in the united states. 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. National land cover database nlcd data can be downloaded at the mrlc website. United states shapefile download free map boundary. Also, it covers most of the world with absolute vertical height accuracy of less than 16m. 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.
Webgis free terrain data geographic information systems. Smallscale contours were created by usgs tnm from 1 arcsecond data with 100meter contours, and are visible at 1. Boxpoint current extent coordinates located point polygon. This 1arc second global digital elevation model has a spatial resolution of about 30 meters. Download free elevation data dem from the usgs national map. For additional information, usgs provides a ned fact sheet, methodology, standards, accuracy, and metadata. Sep 26, 2017 how to download free digital elevation model dataset dem from usgs to download dem. Gis datasets for the state of illinois and the united. 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. Apr 24, 2020 managed by the national geospatial program ngp, 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. It was developed between 1993 and 1996 through a collaborative effort led by staff at the u. Customers can use geospatial data and maps to enhance their recreational experience, make lifesaving decisions, support scientific missions, and for countless other activities. Elevation data sources nc state university libraries.
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. How to download free digital elevation model dataset dem from usgs to download dem. Geological survey usgs as part of the national mapping program. Water data for the nation serves as the publicly available portal to a geographically seamless set of much of the water data maintained within nwis additional background. The gis lab is committed to provide gis data for the state of illinois and the u. Interagency elevation inventory displays highaccuracy topographic and bathymetric data for the united states and its territories. The 3dep data holdings serve as the elevation layer of the national map, and provide. The national mapelevation printed on recycled paper national elevation dataset the national elevation dataset ned is the primary elevation data product produced and distributed by the usgs. You can download the aster dem data for free from the usgs earth.
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