This makes the file size several times larger than a well. In addition, a binary data mask file is available for download, allowing users. Earn 10 reputation in order to answer this question. 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. Click the file index button and a new window will appear.
Digital elevation data with srtm voids filled using. If you download files one at a time, you can get dted or geotiff in. Free digital elevation model dem and free satellite data. It is the current dataset of choice for digital elevation model dem data since it has a fairly high resolution 1 arcsecond, or around 25 meters, has nearglobal coverage from 56s to 60n, and is in the public domain. Gtopo30 was derived from several raster and vector sources of topographic information. The dem represents ground surface topography, and excludes vegetation features.
The global 1arcsecond 30m srtm digital elevation model is free and made available publicly a through the united states geological surveys earthexplorer site. The srtm digital elevation data, produced by nasa originally, is a major. Elevation software free download elevation top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices. Any download policies of the respective mirrors apply. By early 2004, 3 data for north america, south america, eurasia, africa, australia, and islands was available. You should dive into our list of free global dem data sources. The srtm radar contained two types of antenna panels, cband and xband. Shuttle radar topography mission srtm nonvoid filled usgs. For example, in this case i added a world satellite imagery image from esri web map server. This is a commonly used format that can be directly used in arcanything, divagis, and many other programs. Geological survey usgs with a horizontal grid spacing of 30 arc seconds approximately 900 meters. Free satellite data, satellite imagery, digital elevation models dems, topographic maps and free software links. Nasa has released version 2 of the shuttle radar topography mission digital topographic data also known as the finished version.
The national aeronautics and space administration nasa. Free for all nearglobal 30meter srtm elevation data. Gpxsee gpxsee is a qtbased gps log file viewer and analyzer that supports all common gps log file formats. Height data from these sites or data files in the same formats are supported. On september 23, 2014, the white house announced that the highestresolution topographic data generated from nasas shuttle radar topography mission srtm in 2000 was to be released globally by late 2015. 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. Prior to release of the aster data, srtm was the one of the free dem available on the market. You will have world satellite imagery as in figure 2. Click the primary dem tab and select srtm world from the digital elevation model drop down list. The 3dem application produces three dimensional terrain scenes and flyby animations from a wide variety of freely available data sources including. To download srtm elevation data, firstly we have to define a location extent. Download 30meter srtm data easily with this point and. The files have been compressed and grouped in zip files.
The shuttle radar topography mission srtm was flown aboard the space shuttle endeavour february 1122, 2000. I am on the earth explorer page but i do not see where i can find astgtm2 files. Tiles come as zipped srtmhgt files at 1arcsecond resolution 3601x3601 pixels in a latitude. The shuttle radar topography mission srtm was flown aboard the space shuttle. Srtm dem data is being housed on the usgs earth explorer. Apr 27, 2017 how to download free dem digital elevation model, you can also downlaod sentinel 1a data and sentinel 1b link. The usgs earth explorer gives a quick and intuitive way to download free aerial and satellite imagery. The following matlab project contains the source code and matlab examples used for readhgt import download nasa srtm data files. Global multiresolution terrain elevation data 2010. These files have been processed to fill data voids and there is a corresponding kmz file which contains a 90meter index for growing srtm data. Each shapefile consist of at least three actual files.
Opendem the portal for sharing free digital elevation models and xyz height datasets download srtm data the data could be downloaded under the open database license. Especially when we want to download srtm data for an entire country. Click on yellow tiles to download their corresponding data. Download srtm 30m digital elevation models for free. Mapping the earth the shuttle radar topography mission. For low resolution dems here is a great map client. There are two srtm formats that the srtm topo tool works with, srtm1 which contains samples at a resolution of 1 arc second about 100 and srtm3 which is at a resolution of 3 arc seconds about 300. This package is part of the freeware worldwide srtm 3 v2 coveratge project. If you are going to performing analysis on the landsat data, the level 1 geotiff data product is probably the one youre after, which will be the largest file size. Wincache extension for php windows cache extension for php is a php accelerator that is used to increase the speed of php appli. Elevation software free download elevation top 4 download. Fsx world wide coverage srtm 3, version 2, mesh of europe. This data is currently distributed free of charge by usgs and is available for download from the national map seamless data distribution system, or the usgs ftp site. Have a look at the opendemsearcher map client on this website.
Shuttle radar topography mission data were used to generate digital elevation data with a resolution of 1 arcsecond for the united states and 3 arcseconds for global coverage. If you want to download srtm data, those data are available at the us geological surveys eros data center for download. The srtm data is packaged as a srtmhgt files at 1arc second resolution. But heres a usgs earth explorer download guide to help you get started. Download links are directly from our mirrors or publishers website, srtm torrent files or shared files from free file sharing and free upload services, including rapidshare, megaupload, yousendit, letitbit, dropsend, mediamax, hellshare, hotfile, fileserve, leapfile, myotherdrive or mediafire, are not allowed. Download srtm 30m digital elevation models for free youtube. Downloading 30meter srtm from the tile downloader site is as simple as. How to obtain srtm data for a specific area for free.
This project will focus on free high resolution datasets with a spatial resolution of 30 meters and below on countystate scale. Includes the complete set of srtm 3, version 2, mesh files for europe. Download 30meter srtm data easily with this point and click. 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. Contour map shows contour lines with relative space indicating the relative slope of the surface. Gtopo30 is a global digital elevation model dem produced by the u. This data was collected during the shuttle radar topography mission srtm and contains global coverage from 56 degrees south latitude to 60 degrees north latitude in 1 by 1 degree blocks with an approximate resolution of 90 by 90. See this tutorial how to add satellite imagery in qgis.
Elk srtm topography is a tool designed to generate revit topographies using hgt files. The source code and files included in this project are listed in the project files section, please make. You can use programs such as 7zip, pkzip or stuffit to decompress the files. The nearglobal topographic maps of earth called digital elevation models dems are made from the cband radar data. Srtm is probably of better quality than the aster gdem, but lower. Opendem the portal for sharing free digital elevation models and xyz height datasets. Fsx world wide coverage srtm 3, version 2, mesh of africa. Under the data sets tab, select digital elevation srtm srtm 1arcsecond global. Usgs ascii dem format is not particularly good as a data format because it is ascii.
Webgis geographic information systems resource gis. On february 2000 special modified radar flew for 11 day using two antennas and a single pass. May 27, 2015 learn how easy it is to search and download freely available shuttle radar topographic mission srtm dems, that were collected in february 2000 in a special joint mission onboard sts99, using x. Here we will open dem in qgis and create the contour map.
Space shuttle radar topography mission srtm nasa only needed 11 days to capture shuttle. Here is a short script where you only have to specify the iso country code and the tiles are automatically being mosaiced and plotted. The shuttle radar topography mission srtm wikipedia article is a nasa mission conducted in 2000 to obtain elevation data for most of the world. On september 23, 2014, the white house announced the coming availability of a nearglobal 30meter m version of the widely utilized elevation dataset, the shuttle radar topography mission srtm.
The raster files register precisely with the 10m vector data. Mar 15, 2017 shuttle radar topography mission srtm. Srtm 90m digital elevation database cgiar platform for big. The nasa shuttle radar topographic mission srtm has provided digital elevation data dems for over 80% of the globe. Version 2 is the result of a substantial editing effort by the national geospatial intelligence agency and exhibits welldefined water bodies and coastlines and the absence of spikes and wells single pixel errors. Using srtm data as a dem with the pathloss 5 program. I would recommend you to visit the eartexplorer as your first place to obtain the digital elevation model data. This data is currently distributed free of charge by usgs and is available for download. How can i download srtm data of 30 m resolution for research in remote sensing. Usually a country consists of more than one tile and looking up the coordinates of each tile is a pain. After opening qgis, we first need to extract the downloaded file, and import the. Usgs digital elevation model ascii dem files usgs spatial data transfer standard sdts dem files nasa shuttle radar topography mission srtm files lidar point cloud las files usgs global 30 arc. Mrlc multi resolution land characteristics for ned and nlcd data in bil format. The shuttle radar topography mission srtm obtained 90 meter 3.
You can do it manually or simply just add a data into qgis map canvas. Apr 19, 2019 these files have been processed to fill data voids and there is a corresponding kmz file which contains a 90meter index for growing srtm data. Download and clip a portion of the srtm 30m dem giving bounding box as wgs84 coordinates. The collections are located under the digital elevation category below the srtm subcategory. Free synthetic aperture radar handbook available for download. The shuttle radar topography mission cband data for north america and south america are available to the public. File size is approximately 25 mb for 1arcsecond data files and. Includes the complete set of srtm 3, version 2, mesh files for africa. Public terrain data free of charge fetchsrtm download tool for finding and downloading srtm, ned and nlcd terrain data.
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