Download dted level 0 data

Dted level 0 was derived from nga dted level 1 to support a federal. National imagery and mapping agency, fairfax, virginia. The horizontal datum is the world geodetic system 1984 wgs84 and the vertical datum is mean sea level as determined. Level 0 covers only about 50% of the area covered by gtopo30, but much of the difference is in antarctica. Digital terrain elevation data national geospatial. 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 terrain elevation values which provides basic quantitative data for systems and applications that require terrain elevation, slope, andor surface roughness information. The lowest resolution data is the dted level 0, with a grid spacing of 30. Depending on how reasonably the decisions are made on these higher resolution data sets, they may or may not work in. During dted level 0 data sampling from dted level 1 data, the maximum and m inimum elevation value s of the points in the cell are recorded with the average. Currently only converts dted1dted2 no longer in development due to personal time constraints. Vmap level 1 contains medium resolution data at the 1. They will be automatically used when subsampling elevation data on export like from dted2 to dted0. Hi, does anyone know if i can buy a cd or dvd of level 0 dted data for the whole world.

The national geospatialintelligence agency nga does not sell or perform services for the public. It consists of geographic, attribute, and textual data stored on cdroms. The lowest resolution data is the dted level 0, with a grid spacing of 30 arcseconds, or about 1 kilometer. United states mapping agencies provide terrain elevation data in the form of data grids. The edges of adjacent tiles have redundant records. The output pixel size is dictated by the dted level, and the data is converted and stored as signed, 16bit integers. Dted level 0 corresponds to small scale hardcopy products, and has a post spacing of 30. Choose import dem dted level 0, 1 or 2 from the file menu and then select the file, which will usually have the filename extension. The global multiresolution terrain elevation data 2010 gmted2010 provides a new level of detail in global topographic data. Smaller islands with a vertical relief of at least 15 meters must also be included. Dted level 2 30m will be available thru the 2000 sts99 shuttle ifsar mission in 2001. Im kind of in an odd situation and need dted level 0 data but it looks like the nga raster roam site is down.

For information on locating map data for download over the internet, see the. Magnetic cdroms which, in addition to the digital terrain elevation data, contain such supplementary data as digital mean elevation data dmed which provides statistical information for the digital file of the elevation data to each 15 x 15 cell, in addition to the names file and the help and methods of use file. Dted supports negative as well as positive elevations so it works in death valley. A data file of dted level 0 is produced from dted level 1 or vmap 0.

Digital terrain elevation data dted is a digital elevation model dem standard developed by the national imagery and mapping agency nima to support aircraft radar simulation and prediction. The originating data was dted level 0 downloaded from the nga raster roam page. Current dted format does not handle the higher resolution data very well, since the finest resolution that can be implemented is 0. The input can only be a single band raster dataset.

Dted was used as the source for most of eurasia and large parts of africa and the americas. Gesch global land onekm base elevation globe model and. Fme is the data integration platform with the best support for spatial. The files have file names with the extension dtn, where n is the level of the dted product. This edition includes the shuttle radar topography mission \srtm\ dted level 1 and level 2 requirements. Dted level 0 corresponds to small scale hardcopy products, and has a post spacing of 30 arcseconds, or one kilometer nominal resolution. Load into world builderworld engine and have it export as tiled assets for unreal to read. Dted file extension the low cost mapworks surfaces addon running inside civil3d will read nga digital terrain elev data level 02. The points in between the sampled points can be interpolated making use of the interpolation algorithms, with the addition of two sets of extra points whose coordinates are determined according to the existing sample points. Milprf89020 digital terrain elevation data \dted\ this specification defines the requirements within national imagery and mapping agency\s \nima\ digital terrain elevation data base which supports various weapon and training systems. I know i can download it, but you can only download small bits at a time.

Military specification digital terrain elevation data dted milprf89020b, and amongst other parameters describes the resolution for each level. Simply download that file and extract the contents into your existing v12. Dted level 2 is a uniform gridded matrix of terrain elevation. The dted level 0 data is relatively small, and is often published as a concatenation of large area or global tiles in other than dted format. Dted level 0, a new nima data base, is the result of a joint globedma initiative, which resulted in the joint design and dma production just before dma was reorganized into nima of dted level 0.

Maps extend a half a cell outside the requested map limits. 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 dted level 0 accuracy record is copied from the dted level 1 accuracy record or will contain na not available when produced from vmap 0. Raster to dteddata management toolbox documentation. Vmap level 0 is the low resolution component of the vmap family of products. Used in study to find large flat areas of world as possible places to locate gammaray telescope array. To the best of our knowledge, no dted level 3 or higher has been produced in the nga dted format.

Shuttle radar topography mission dted level 1 3arc. Dted level 0 data provides approximately 1km resolution of elevation data which requires smaller storage space. The dted format for level 0, 1 and 2 is described in u. Add dted data to a map layer geonet, the esri community. Exporting dted level 2 to dted level 0 global mapper forum. Those products and services that are available to the public can be obtained from the following sources. The dt0 dted level 0 file format specifies how bits are used to encode information in a digital storage medium. Each dted file contains elevation data for a 1 degree.

A file format like dt0 dted level 0 file is a standard way that information is encoded for storage in a computer file. Digital terrain elevation data dted map and data library. I remember about 78 years ago that data was still obtainable but it doesnt appear as though it is. September 2008 edited september 2008 in elevation data. Citeseerx digital terrain model interpolation for mobile. National geospatial intelligence agency nga of the u. Caution the data will be extraced into a new folder called dted its part of the path stored with each file in the zip so be aware that you may end up with path which ends with dteddted, if this happens make sure the dted path in elevation configuration includes both the names example c. Dted level 0 elevation post spacing is 30 arc second nominally one kilometer. Converts digital terrain elevation data from one level to another. In the end, i managed to add dted layer using rasterlayer. Access constraints srtm dted level 1 3 arc second data for global coverage is distributed.

There are three levels of the dted tiling scheme available. The gmted2010 product suite contains seven new raster elevation products for each of the 30, 15, and 7. Use the free 21day full working demo to process the file at your location. Some code to load and process digital terrain elevation data dted files. Global multiresolution terrain elevation data 2010. Islands with an axis greater than 600 meters for dted level 1 or 300 meters for dted level 2 must appear in dted. The 1 kilometer data and some higherresolution data is available online, as are product specifications and documentation. Dted level 1 corresponds to medium scale hardcopy products, and has a post spacing of three arcseconds, or 100 meter nominal resolution. Each tiles extent is one degree in each direction, plus a half pixel on each edge so adjacent tiles have one column and row of overlap. Digital terrain model interpolation for mobile devices. File open dt0 dted level 0 file data conversion ai. Dted level 2 is the basic high resolution elevation data source for all military activities and systems that require landform, slope, elevation, andor terrain roughness in a digital format. You can find published specifications for dted at the nga website.