The digital elevation models dem derived from the srtmxsar data are provided in the dtedformat. Although nga has only published standards for level 1 3 arc second 90 meter and level 2 1 arc second 30 meter dted, theres strong interest in higher resolution terrain data. The nga dted data can be downloaded from the nga raster roam page here nga dted data for most of the world. I remember about 78 years ago that data was still obtainable but it doesnt appear as though it is. Geoaxis authentication national geospatialintelligence agency. The raster roam search will display the requested nga standard raster product over the area of interest. Falconview doesnt support dted 0 so this is only a curiosity. Shuttle radar topography mission dted level 1 3arc second data dted 1 the shuttle radar topography mission srtm successfully collected interferometric synthetic aperture radar ifsar data over 80 percent of the landmass of the earth between 60 degrees north and 56 degrees south latitudes in february 2000. Radio mobile rf propagation simulation software dted.
Free satellite data, satellite imagery, digital elevation models dems, topographic maps and free software links. The dted format was developed for the distribution of gridded elevation data that was assembled by the us defense mapping agency dma. If you want the format specification, you should edit the question to state this. National geospatial intelligence agency nga, formerly the national imagery and mapping agency nima, and before that, the defense mapping agency dma. Incorporates dmed data into stf and associates it with the corresponding dted data. Dted level 0 and dted level 1 files are in the same format albeit at different post spacings, as published in the milprf89020b document. Geoaxis authentication national geospatialintelligence. Nga nima dted is a global digital terrain elevation database dted provided by the national imagery and mapping agency usa with a horizontal grid spacing of 30 arc seconds approximately 1 kilometer. The industrial revolution was powered by fossil fuels, but the modern economy has come to rely heavily on. Nga images is a repository of digital images of the collections of the national gallery of art. Jan 20, 2020 dted supports many applications, including lineofsight analyses, terrain profiling, 3d terrain visualization, mission planningrehearsal, and modelling and simulation.
Department of defense, through the national geospatial intelligence agency, produces several kinds of digital cartographic data. Dted 0 is unique because in addition to the normal elevation file there are files containing the average, maximum and minimum elevation for 3 degree by 3 degree boxes centered on each dted post. Turn practically any file into a digital terrain elevation data raster, or conversely, convert dted files into hundreds of other formats using fme. If this problem persists, please contact the nga enterprise service center. An ondemand geospatial platform that provides mission appsand developer tools. Canada uses a highly similar format called canadian digital elevation data cded where to get it. To obtain an austere account, call the nga enterprise service center esc at 18004550899 comm or 5785555 tsvoip. This is the best resolution dted map level that the app can use, with a nominal 30 meter cell spacing. Geological survey usgs and the national geospatialintelligence agency nga have collaborated on the development of a notably enhanced global elevation model named the global multiresolution terrain elevation data 2010 gmted2010 that replaces gtopo30 as the elevation dataset of choice for global and continental scale applications. Dted is a standard nga product that provides medium resolution, quantitative data in a digital format for military system applications that require terrain elevation. Toponymic information is based on the geographic names database, containing official standard names approved by the united states board on geographic names and maintained by the national geospatialintelligence agency.
On this website you can search, browse, share, and download images. In support of military applications, the national geospatialintelligence agency nga has developed standard digital datasets digital terrain elevation data dted which is a uniform matrix of terrain elevation values which provides basic quantitative data for systems and applications that require terrain elevation, slope, andor surface. Dted file extension the low cost mapworks surfaces addon running inside civil3d will read nga digital terrain elev data level 02. An nga sponsor is needed to request and maintain an austere user account. Although no standards exist, the defacto resolution for level 3 dted is a rd arc second 10 meter, level 4 is 19th arc second 3 meter and level 5 dted is.
This release of the dted to stf converter application, which is compatible with sedris sdk 3. The national geospatialintelligence agency nga does not sell or perform services for the public. Earth resources observation and science eros center. Government agencies that support dod functions by authority of the director, national geospatialintelligence agency, 30 may 1990. Dted files digital terrain elevation data what it is. Gis data depot is another source which may be easier to use. This makes the file size several times larger than a well. If you download files one at a time, you can get dted or geotiff in addition to bil, but each download takes multiple clicks. In support of military applications, the national geospatialintelligence agency nga has developed standard digital datasets digital terrain elevation data dted which is a uniform matrix of terrain elevation values which provides basic quantitative data for systems and applications that require terrain elevation, slope, andor surface roughness information. Those products and services that are available to the public can be obtained from the following sources. The dted format is intended to be used with one band data that represents elevation, so this tool cannot be used for multiband images. The maxminavg values are calculated using dted 1 data. You are not accessing a valid geoaxis protected resource. Dted is the milspec and the data in that format published by nga.
Distribution of dted and the digital data products catalog is authorized to the department of defense, u. When your profile is built, download to a folder on your computer. Download the application to your desktop and follow the instructions to unzip the application to your computer. Gvs is unable to sponsor users for austere accounts. In support of military applications, the national imagery and mapping agency nima has developed standard digital datasets digital terrain elevation data dted which is a uniform matrix of. The dma later changed its name to national imagery and mapping agency nima but is now called the national geospatial intelligence agency nga. Shuttle radar topography mission dted level 1 3arc second. Converts digital terrain elevation data from one level to. More information is available at the maps and geodata link at. Scope basis of this document is the performance specification digital terrain elevation data dted dma, 1996 provided by the national imaging and mapping agency nima. Eyes on earth is a podcast covering a range of topics on remote sensing, satellite operations, and the science of earth observation. The data is designed for use during submarine hull integrity tests conducted as a part of the builders trials and after submarine hull maintenance. Nga launches new open platform to access its data fedscoop. Free digital elevation model dem and free satellite data.
The digital terrain elevation data dted model is a series of gridded elevation models with global coverage at resolutions of 1 kilometer or finer. Usgs ascii dem format is not particularly good as a data format because it is ascii. Im kind of in an odd situation and need dted level 0 data but it looks like the nga raster roam site is down. Apr 24, 2018 the national geospatialintelligence agency unveiled a new platform monday to make it easier for anyone to get their hands on the agencys wealth of geospatial data. Digital stock numbers can be obtained via the nga reference number national stock number nrnnsn download page. Please navigate directly to the url of the resource you desire to access. Map of the world national geospatialintelligence agency. Use the free 21day full working demo to process the file at your location. The data is provided primarily to support deep submergence rescue. The platform, dubbed geoworks, gives large and small companies, academic institutions and other interested individuals an opportunity to access nga s data and tools, nga director robert cardillo said monday at the 2018 geoint.
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