We would like to show you a description here but the site wont allow us. 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 platform for big data in agriculture harnesses the power of big data for agricultural research and development. Cgiar s global network of 15 research centers contributes to an unrivalled mix of knowledge, skills and research facilities able to respond to emerging development issues. 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. All are produced from a seamless dataset to allow easy mosaicing. This version of the srtm digital elevation data has been processed to fill data voids, and to facilitate its ease of use. Earn 10 reputation in order to answer this question.
Simplifying soil data management in subsaharan africa. Learn how easy it is to search and download freely available shuttle radar topographic mission srtm dems, that were collected in. Download free dem digital elevation model 10 meters by. Srtm 90m digital elevation database cgiar platform for. External validation of the aster gdem2, gmted2010 and cgiarcsi srtm v4. This latest version represents a significant improvement from previous versions, using new interpolation algorithms and better auxiliary dems. Download and clip a portion of the srtm 30m dem giving bounding box as wgs84 coordinates. On this video, i show you the simple way to download dem a digital elevation model using cgiar data. The srtm 90m dems 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 algorithm can be downloaded from the csicgiar website or from this. Unequalled partnerships network of more than 3,000 partners from national governments, academic institutions, global policy bodies, private companies and ngos. Usgs ascii dem format is not particularly good as a data format because it is ascii. Cgiarcsi is one of the community of practices supported by the cgiar platform for big data in agriculture. How to download dem digital elevation model youtube. Each shapefile consist of at least three actual files. This is free, and all the data has been upgraded to version 4. The shuttle radar topography mission srtm digital elevation dataset was originally produced to provide consistent, highquality elevation data at near global scope. Other sources, catalogues and lists for high resolution open dem data. The cgiar research portfolio 20172022 is structured around two linked clusters of challengeled research. Srtm digital elevation data version 4 earth engine data. It is one of three cgiar research platforms and it is carried out with support from the cgiar trust fund, ukaid and through bilateral funding agreements.
The cgiarcsi geoportal is able to provide srtm 90m digital elevation data for the entire world. The srtm digital elevation data, produced by nasa originally, is a major breakthrough in digital mapping of the world, and provides a major. The processed srtm 90 m digital elevation model dem for the entire globe was compiled by consultative group. The first of these is the innovation in agrifood systems which involves adopting an integrated, agricultural systems approach to advancing productivity, sustainability, nutrition and resilience outcomes at scale. Nasa srtm downloaded files are stored in a subfolder of the globe arcview elevation data file path. Users should acknowledge ciat as the source used in the creation of any reports, publications, new data sets, derived. The files have been compressed and grouped in zip files. Cgiar formerly the consultative group for international agricultural research is a global partnership that unites international organizations engaged in research about food security.
The glcf is also a convenient way to browse and download srtm data. This makes the file size several times larger than a well. The data could be downloaded under the open database license the data could be visualised in 3d with the virtual terrain software srtm digital terrain model of germany. Cgiarcsi at the africagis 2019 conference in kigali, rwanda. They also have the 30 m and 90 m shuttle radar topography mission dem and the 1 km gtopo30 dem. Free digital elevation model dem and free satellite data. Create slope and hillshade map for digital elevation model srtm raster data in arcgis 10. Accuracy assessment of the processed srtmbased elevation data by cgiar using field data from usa and thailand and its.
On completion of the download, the elevation configuration settings are changedconfigured to automatically use the data. The dem files have srtm dem 30m mosaiced into a seamless nearglobal coverage up to 60 degrees north and southand are available for download as 5 degree x 5 degree tiles, in geographic coordinate system wgs84 datum. Since the late1980s, cgiar has produced and published yearly financial reports comprising detailed data on the staffing, funding, and expenditures of cgiar centers, the system as a whole, and in more recent years the cgiar research programs crps. Consultative group on international agricultural research consortium for spatial information cgiarcsi. Digital elevation models dem for the entire globe, covering all of the countries of the world, are available for download on this site. Pdf external validation of the aster gdem2, gmted2010. Download srtm 30m digital elevation models for free. Cgiar consortium for spatial information cgiarcsi is the geospatial science community of practice that facilitates cgiars use of geospatial data and analysis in research. Cgiar downloaded files are stored in a subfolder of the grid ascii elevation data file path. Free and low cost datasets for international mountain cartography. This is a commonly used format that can be directly used in arcanything, divagis, and many other programs. These are available in both arcinfo ascii and geotiff format to facilitate their ease of use in a variety of image processing and gis. Srtm digital elevation data version 4 earth engine data catalog. The original version of the gdem featured at least 20m le90 vertical accuracy which was improved with the release of the second version.
Hdx data manager updated the dataset nepal digital model elevation dem over 5 years ago dita anggraeni added the tag eq2015000048npl to the dataset nepal digital model elevation dem over 5 years ago. Cgiars global network of 15 research centers contributes to an unrivalled mix of knowledge, skills and research facilities able to respond to emerging development issues. Earth engine is free to use for research, education, and nonprofit use. 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. Nepal digital model elevation dem humanitarian data. A better source for the 90 m srtm dem is cgiars website. You can use programs such as 7zip, pkzip or stuffit to decompress the files. The global 1arcsecond 30m srtm digital elevation model is free and made available publicly a through the united states geological surveys earthexplorer site. Download srtm 250m or 90m digital elevation data version 4.
The usgs global data explorer has version 2 of the 30 m aster global demapparently its an improvement over version 1, but in my opinion its still pretty crummy. How to download srtm dem directly from the qgis canvas. The dataset covers most of the globe, except polar regions, i. A nearlyglobal, voidfree, multiscale smoothed, 90m. Free download srtm data dem without registration youtube. Download free and lossless lidar compression data wikipedia national lidar dataset wikipedia national lidar dataset united states arcgis opendata catalog openterrain list. 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. Cgiar research aims to reduce rural poverty, increase food security, improve human health and nutrition, and sustainable management of natural resources. Download srtm 30m digital elevation models for free youtube. Free satellite data, satellite imagery, digital elevation models dems, topographic maps and free software links. Date line, please download tiles in separate download sessions e.