Srtm elevation data of the earths land surface are available with data points posted every 1. We dont have to do hectic work like this as webgis provides us with readymade digital elevation data. The shuttle radar topography mission srtm, see farr et al. The data are available for download via earthdata search, the lp. This interface attempts to ease the pain of downloading 30meter resolution elevation data from the shuttle radar topography. The srtm digital elevation data, produced by nasa originally, is a major. The raster package is not only a great tool for raster processing and calculation but also very useful for data acquisition. Download srtm 30m digital elevation models for free. The shuttle radar topography mission srtm wikipedia article is a nasa mission conducted in 2000 to obtain elevation data for most of the world.
The nasa srtm obtained elevation data on a nearglobal scale using radar interferometry. Digital elevation model is a 3d representation of a terrain. This srtm v3 product srtm plus is provided by nasa jpl at a resolution of 1. Shuttle radar topography mission srtm the srtm mission began in 2000 as a joint venture between nasa and nga to use a modified radar system onboard the space shuttle endeavour to acquire reflective surface elevation data for over 80 percent of the earths land mass. Users should be aware that these data are intended for use with a geographic information system gis or other special application software, and are not directly viewable in a browser. Download srtm 30m digital elevation models for free youtube. The us government recently relaxed the distribution restrictions on the data, making 30m 1 arc second dems available. Download 30meter srtm data easily with this point and click.
Downloading 30meter srtm from the tile downloader site is as simple. Data were produced by nasa from radar data collected by the shuttle radar topography mission in february 2000. Apr 19, 2019 arranged in tiles that are 1 degree latitude by 1 degree longitude, shuttle radar topography mission srtm data was acquired over a 11day mission in february 2000. Arranged in tiles that are 1 degree latitude by 1 degree longitude, shuttle radar topography mission srtm data was acquired over a 11day mission in february 2000. The nasa shuttle radar topographic mission srtm has provided digital elevation data dems for over 80% of the globe. In gray is the original elevation taken with an android smartphone. It also happens to offer their version 4 srtm which has the gaps filled.
If youre interested in images and visualizations created from srtm data, go to the image product description page. 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 data is provided in an effort to promote the use of geospatial science and applications for sustainable development and. How to download srtm elevation data in qgis geodose. The national aeronautics and space administration nasa. If you want to download srtm data, those data are available at the us geological surveys eros data center for download. With the function getdata you can download the following data directly into r and process it. Creating terrain mesh using highresolution elevation map srtm 1 arc second or. The srtm water body data files are a byproduct of the data editing performed by the national geospatialintelligence agency nga to produce the finished srtm digital terrain elevation data level 2. For example, in this case i added a world satellite imagery image from esri web map server. How to download 30m and 90m resolution srtm digital.
It is a digital elevation model for whole world created and distributed by usgs. This srtm v3 product srtm plus is provided by nasa jpl at a resolution of 1 arcsecond approximately 30m. Grayscale shaded relief of land areas only derived from downsampled srtm plus elevation data clipped to the 10 millionscale natural earth coastline. The global 1arcsecond 30m srtm digital elevation model is free and made available publicly a through the united states geological surveys earthexplorer site. 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. 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. I would recommend you to visit the eartexplorer as your first place to obtain the digital elevation model data. Srtm 90m digital elevation database cgiar big data platform. It is generated by collecting elevation points of terrain. 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. Geodata 9 second dem version 3 geoscience australia, 2008 used to fill voids. How to download 30m and 90m resolution srtm digital elevation. 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.
Global elevation data evaluation and basemaps bigdata earth. Mar 03, 2020 the nasa srtm obtained elevation data on a nearglobal scale using radar interferometry. 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. Free for all nearglobal 30meter srtm elevation data. Digital object identifier doi shuttle radar topography mission srtm water body dataset digital object identifier doi number. Srtm 90 elevation data with 90m resolution between latitude 60 and 60 world climate data tmin, tmax, precip, bioclim. Now there is a difference in elevations between the two terrains.
Srtm elevation data of the earths land surface are available with data points posted every 1 arc second for global coverage. The shuttle radar topography mission srtm digital elevation dataset was originally produced to provide consistent, highquality elevation data at near global scope. This interface attempts to ease the pain of downloading elevation data from the shuttle radar topography mission. The collection are located under the digital elevation category. The mission collected elevation data from 56s to 60n and was the. It has not the greatest resolution, approximately 1 km and split into 33 tiles available in usgs dem file format. Srtm consisted of a specially modified radar system that flew onboard. You can do it manually or simply just add a data into qgis map canvas.
Srtm dem data is being housed on the usgs earth explorer. Coverage at 3 arc seconds is now global, and unlike srtm and aster gdem, there are no serious voids or artifacts. The new data are available for download from the usgs eros data center see. 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. Earth explorer can be used to download the data, it is under the digital elevation category. In this video, i have clearly shown the steps required to download 30m and 90m resolution srtm digital elevation model data from opentopography. You will have world satellite imagery as in figure 2. The shuttle radar topography mission srtm was flown aboard the space shuttle endeavour february 1122, 2000. The srtm 1 arcsecond global data offer worldwide coverage of void filled data at a resolution of 1 arcsecond 30 meters and provide open distribution of this highresolution global data set. Nasa shuttle radar topography mission srtm version 3. 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. This version of the srtm digital elevation data has been processed to fill data voids, and to facilitate its ease of use. Webgis is where you can find all the leading information and resources for geographical information systems. 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.
May 27, 2015 download srtm 30m digital elevation models for free. Data can be downloaded using a browser or accessed directly from the ftp site. The srtm digital elevation data provided on this site has been processed to fill data voids and to facilitate its ease of use by a wide group of potential users. Each tile comes in geotiff format at 90meter resolution 6000x6000 pixels, from various mirrors ive found on the web. Google earth elevations vs srtm geonet, the esri community. Creating terrain mesh using highresolution elevation map srtm 1.
The glcf is also a convenient way to browse and download srtm data, in geotiff format for more information, see the glcf srtm page. 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. Radiometer and srtm shuttle radar topography mission elevation data. Srtm water body data swbd shapefile accompanying the srtm data slater et al. Download digital terrain dem digital elevation model and. Free sample srtm shuttle radar topography mission back description. Click on red tiles to download their corresponding data. The dem represents ground surface topography, and excludes vegetation features.
Geoscience australia, 1 second srtm digital elevation model. The shuttle radar topography mission srtm data products result from a collaborative mission by the national aeronautics and space administration nasa, the national imagery and mapping agency nima, the german space agency dlr and italian space agency asi, to generate a nearglobal digital elevation. The mission collected elevation data from 56s to 60n and was the highest resolution topographical database at the time of acquisition more. The shuttle radar topography mission srtm30 obtained elevation data on a nearglobal scale to generate the most complete highresolution digital topographic database of earth. Srtm digital elevation data version 4 earth engine data catalog. Feb 19, 2019 in this video, i have clearly shown the steps required to download 30m and 90m resolution srtm digital elevation model data from opentopography.
The shuttle radar topography mission srtm data products result from a collaborative mission by the national aeronautics and space administration nasa, the national imagery and mapping agency nima, the german space agency dlr and italian space agency asi, to generate a nearglobal digital elevation model dem of. 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 srtm processing improvements, elevation control, voidfilling and merging with data unavailable at the time of the original srtm production. There are 2 ways that srtm data can be used with pathloss 5. To download srtm elevation data, firstly we have to define a location extent. How to obtain srtm data for a specific area for free. A free dataset created by combining data from many sources, including gapfilling srtm, and sheets of contour maps. 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. Since srtm data are one of the most widely used elevation data sources, the. The ocean color extends beneath land areas as a flat tintmask it with the 10m natural earth vector shoreline, or a shoreline from another data source. 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 srtm processing improvements, elevation control, voidfilling and merging with data unavailable at the time of the original srtm production. We would like to show you a description here but the site wont allow us. Elevation data provides height above the sea level in meters for every single place in the world, measured for regions of approximately 30x30 meters.
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