Usually the srtm data can be downloaded from usgs earth explorer or nasa earth data server. 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. The purpose of srtm was to generate a nearglobal digital elevation model dem of the earth using radar interferometry. It can be considered to be either an srtm data set enhanced with gtopo30, or as an upgrade to gtopo30. The national aeronautics and space administration nasa and the national geospatial. To access the srtm cband image products on jpls photojournal, follow the link below. Guevara, 2008, holefilled seamless srtm data v4, international centre for tropical agriculture ciat, available from. Importing geotiff data is a core functionality of blendergis, you can import any kind of dem dataset found over the web.
A variety of images have been created with data from the shuttle radar topography mission and are available on jpls planetary photojournal. Download 30meter srtm data easily with this point and. Srtm data have been enhanced to fill areas of missing data to provide digital elevation data with a resolution of 1 arcsecond for global coverage. For 11 days in february 2000, the space shuttle endeavour conducted the shuttle radar topography mission srtm using cband and xband interferometric synthetic aperture radars to acquire topographic data over 80% of the earths land mass, creating the firstever nearglobal data set of land elevations. Shuttle radar topography mission nasa jet propulsion. Keep in mind, srtm data can be downloaded in geotiff format from nasa usgs web site and then imported into blender with the import georaster dem operator of blendergis this is what the get srtm function do automatically under the hound. The shuttle radar topography mission srtm, see farr et al. It appears that the global 1arcsecond 30m srtm digital elevation model is now being made publicly available. Srtm was a primary component of the payload on the space shuttle endeavour during its sts99 mission. Watkins also offers the srtm tile grabber which links to geotiff files created by ciatcsi. The collections are located under the digital elevation category below the srtm subcategory. As stated on the nasa jpl official page, the next release is planned for later in 2014, and it is expected to include all of south america plus north. Nasa radar image shows topography of sendai, japan region full resolution. The raster files register precisely with the 10m vector data.
How to download digital elevation model of aster nasa and. The primary goal of creating this version was to eliminate gaps, or voids, in the srtm dem. Downloading a digital elevation model nasa from nasa. To upgrade your browser, click on the icons below to go to the download page. The shuttle radar topography mission srtm obtained elevation data on a nearglobal scale to generate the most complete highresolution digital topographic database of earth. Digital elevation model of ireland, from nasas shuttle. Opentopography shuttle radar topography mission srtm gl3. The srtm produced the most complete, highresolution digital elevation model dem of the entire earth farr et al. Geodata 9 second dem version 3 geoscience australia, 2008 used to fill voids. Most voids are filled with elevation data from the aster gdem2 global digital elevation. Opentopography shuttle radar topography mission srtm.
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. Nasa global dtm digital terrain model at 90 m spatial. The data are available for download via earthdata search, the lp. Can some one provide a link on which i can download dem files, especially for. Annotated version click on the image for larger version movie click on the image to view the movie. Flown aboard the nasa space shuttle endeavour 1122 february 2000, srtm fulfilled its mission to map the world in three dimensions. Srtm 90m digital elevation database cgiar platform for. The srtm project was led by the national geospatialintelligence agency nga and nasa.
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. The shuttle radar topography mission produced the first detailed elevation model of most of the world. Mar 03, 2020 nasa shuttle radar topography mission v3 global 1 arc second hillshade image of the mt everest regionthe land processes distributed active archive center recently released additional tiles in the nasa srtm version 3. The table below summarizes the various dem sources and the map indicates which dem will be used in a given area. Which dem data is better for elevation mapping, aster or. The nasa shuttle radar topographic mission srtm has provided digital elevation data dems for over 80% of the globe. How to download digital elevation model of aster nasa and nga. The new data are available for download from the usgs eros data. The data are available for download via reverb, the lp daac data. A new global digital elevation model dem has been released.
The dem represents ground surface topography, and excludes vegetation features. This tutorial is a demonstration of how to download a digital elevation model dem from the advanced spaceborne thermal emission and reflection radiometer aster version 2. 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. The shuttle radar topography mission srtm, dts99 from february 11 to 22, 2000 was an usgermanitalian effort to produce a first global digital elevation model dem. Srtm digital elevation data version 4 earth engine data. 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. There is a new, 30 meters resolution srtm dtm coming out. 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. How to obtain srtm data for a specific area for free. The srtm digital elevation data, produced by nasa originally, is a major breakthrough in digital mapping of the world, and provides a major advance in the accessibility of high quality elevation data for large portions. The first release of shuttle radar topography mission srtm data was provided in 1degree digital elevation model dem tiles from the usgs ftp server ftp. Digital elevation models dem for the entire globe, covering all of the countries of the world, are available for download on this site. The data can be configured as a dem and used for all profile and background generation or it can be used in conjunction with a bare earth dem such as ned data in gridfloat format as a clutter database.
Natural earth features 7 types of raster files at 1. Srtm 90m digital elevation database cgiar platform for big. Nasa monitors earths water from space, the skies, ground stations on land, ships sailing the seas and even with apps on mobile phones. Oct 24, 2014 take a jaunt on the wild side as nasa jpl shuttle radar topography mission conducts an aerial safari of africa varied topography. The original raw open data from us geological survey srtm 1arc, nasa and meti aster gdem and european union eu dem has been modified, adapted and overlaid to fill the gaps and provide a. Srtm digital elevation data version 4 earth engine data catalog.
A site in the crater highlands of tanzania reveals the difference between shuttle radar topography mission srtm digital elevation model dem data as originally released in 2004 left and as now released at full resolution in 2014 right. The shuttle radar topography mission srtm wikipedia article is a nasa mission conducted in 2000 to obtain elevation data for most of the world. Voidfilled srtm plus released srtm nasa v3 nasa has released a voidfilled version of the shuttle radar topography mission digital elevation model, known as srtm plus or srtm nasa version 3. Feb 18, 2020 our objective is to provide the scientific and civil communities with a stateoftheart global digital elevation model dem derived from a combination of shuttle radar topography mission processing improvements, elevation control, voidfilling and merging with data unavailable at the time of the original srtm production. Click on the srtm30 tile to download the digital elevation map dem from the place you select. Srtm water body data swbd shapefile accompanying the srtm data slater et al. The ability of the shuttle radar topography mission srtm instrument to penetrate clouds and make threedimensional measurements will allow generation of the first complete highresolution topographic map of the entire region. Nasa shuttle radar topography mission global 30 arc second. In order to use earthdata search, you must upgrade your web browser. It can be considered to be either an srtm data set enhanced with gtopo30, or. The current srtm dem product is the most intensely downloaded dataset in nasa history.
The national aeronautics and space administration nasa. The shuttle radar topography mission srtm collection. Shuttle radar topography mission srtm cband radar xband radar. On the page that appears, look for the category called search for. The srtm data is packaged as a srtmhgt files at 1arc second resolution 3601 x 3601 pixels and is pulled from nasa s servers. Apr 19, 2019 the srtm data is packaged as a srtmhgt files at 1arc second resolution 3601 x 3601 pixels and is pulled from nasa s servers. The cgiarcsi geoportal is able to provide srtm 90m digital elevation data for the entire world. Srtm plus uses srtm version 2 see below where the radar interferometric method was successful not void. Srtm consisted of a specially modified radar system that flew onboard the space shuttle endeavour during an 11day mission in february of 2000. Earth is a pale blue dot when seen from space because its 71% covered in water. Nasadem is a reprocessing of shuttle radar topography mission srtm data to improve height accuracy and to infill missing elevation data. 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.
The ministry of economy, trade, and industry meti of japan and the united states national aeronautics and space administration nasa jointly announced the release of the advanced spaceborne thermal emission and reflection radiometer aster global digital elevation model version 3 gdem 003, and the aster water body dataset astwbd on. Any download policies of the respective mirrors apply. Version 2 and version 3 was compared to shuttle radar topography mission srtm 4 and prism 30 m dem available from the japan aerospace exploration agency jaxa, created from advanced land observing satellite alos panchromatic remotesensing instrument for stereo mapping prism optical data 8 for reasonable consistency. Digital elevation model dem of gulf countries, the nasa shuttle radar topographic mission srtm. Srtm did not produce data for the northernmost latitudes or antarctica. The difference in elevation, when compared to a bare earth dem is assigned to the clutter height. The dem has a ground resolution of 90 m and its accuracy was estimated at 1.
Digital elevation shuttle radar topography mission srtm usgs. Take a jaunt on the wild side as nasa jpl shuttle radar topography mission conducts an aerial safari of africa varied topography. Nasa shuttle radar topography mission global 30 arc second v002. Learn how easy it is to search and download freely available shuttle radar topographic mission srtm dems, that were collected in.
Download srtm 30m digital elevation models for free youtube. This collaboration aims to generate a nearglobal digital elevation model dem of earth using radar interferometry. Srtm was the primary and virtually only payload on the sts99 mission of the space shuttle endeavour, which launched february 11, 2000 and. I would recommend you to visit the eartexplorer as your first place to obtain the digital elevation model data.
The srtm digital elevation data, produced by nasa originally, is a major breakthrough in digital mapping of the world, and provides a major. Updated global elevation data released by nasa gis lounge. Nasa srtm dems created with processing improvements at full resolution. Apr 21, 2018 how to download digital elevation model of aster global dem, nasa srtm v3. The data was improved through the use of algorithms and data that wasnt available at the time of the original srtm data release. There are 2 ways that srtm data can be used with pathloss 5. The nasa srtm obtained elevation data on a nearglobal scale using.
The usgs is under agreement with nga and nasa s jet propulsion laboratory to distribute srtm elevation products derived from the cband radar data. Srtm elevation data is an effort to provide digital elevation model dem at global scope with highest resolution 30 m. How to download digital elevation model of aster global dem, nasa srtm v3. The shuttle radar topography mission srtm collection user guide revised october, 2015 4 for use in research environments measures project. This srtm v3 product srtm plus is provided by nasa jpl at a resolution of 1 arcsecond approximately 30m. Nasas ice, cloud,and land elevation satellite icesatgeoscience. Like much of central america, costa rica is generally cloud covered, so very little satellite imagery is available. Data were produced by nasa from radar data collected by the shuttle radar topography mission in february 2000. Download 30meter srtm data easily with this point and click. Two versions of the 10 millionscale raster data are offered. Srtm30 is a nearglobal digital elevation model dem comprising a combination of data from the shuttle radar topography mission, flown in february, 2000 and the the u. Please see the linked pdf files for further documentation.
Which dem data is better for elevation mapping, aster or srtm satellite data. How can i download srtm data of 30 m resolution for research in remote sensing. Nasa shuttle radar topography mission srtm version 3. This version of the srtm digital elevation data has been processed to fill data voids, and to facilitate its ease of use.
The shuttle radar topography mission srtm digital elevation dataset was originally produced to provide consistent, highquality elevation data at near global scope. The quality of an alos palsar rtc product is directly related to the quality of the digital elevation model dems used in the radiometric terrain correction rtc process. I read about the new version of the digital elevation model at 30 meters srtm 30 meters, but i can not find from were i can download it. Srtm digital elevation data 30m earth engine data catalog. For 11 days in february 2000, the space shuttle endeavour conducted the shuttle radar topography mission srtm using cband and xband interferometric synthetic aperture radars to acquire topographic data over 80% of the earths land mass, creating the. Research grade srtm cband data are available through nasa jpl. This image of south america was generated with data from the shuttle radar topography mission srtm. The srtm 90m dem s have a resolution of 90m at the equator, and are provided in mosaiced 5 deg x 5 deg tiles for easy download and use. The data was released continent by continent, as and when the data was processed by nasa and the usgs.
Nasa has released a voidfilled version of the shuttle radar topography mission digital elevation model, known as srtm plus or srtm nasa version 3. Apr 05, 2018 this tutorial is a demonstration of how to download a digital elevation model dem from the advanced spaceborne thermal emission and reflection radiometer aster version 2. However, the original memorandum of understanding mou between nasa and nga has a number of restrictions and limitations. For this broad view the resolution of the data was first reduced to 30 arcseconds about 928 meters northsouth but variable eastwest, matching the best previously existing global digital topographic data set called gtopo30. Srtm xsar digital elevation model dem 10 mosaics global abstract. The shuttle radar topography mission srtm was flown aboard the space shuttle endeavour february 1122, 2000. Geoscience australia, 1 second srtm digital elevation. In february 2000, space shuttle endeavour started on an 11day srtm shuttle radar topography mission remote sensing mission. Elevation data provides height above the sea level in meters for every single place in the world, measured for regions of approximately 30x30 meters. If youre interested in images and visualizations created from srtm data, go to the image product description page.
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