How do I get SRTM data?

Where can you download the SRTM data? SRTM DEM data is being housed on the USGS Earth Explorer. To download, select your area of interest. Under the data sets tab, select Digital Elevation > SRTM > SRTM 1-ArcSecond Global .

What is SRTM elevation data?

The Shuttle Radar Topography Mission (SRTM) is an international research effort that obtained digital elevation models on a near-global scale from 56°S to 60°N, to generate the most complete high-resolution digital topographic database of Earth prior to the release of the ASTER GDEM in 2009.

Is SRTM a DTED?

SRTM is a Digital Elevation Model (DSM), whereas Digital Terrain Elevation Data (DTED) is a Digital Surface Model (DSM).

Is SRTM DEM or DSM?

Digital Surface Model (DSM) An example of a DSM is the NASA’s Shuttle Radar Topography Mapping (SRTM) mission, which covered about 80% of all the Earth’s land (approximately 3 arc seconds ≈ 90m spacing irregular points).

What is the difference between tin and DEM?

You know that TIN is a vector-based representation whereas DEM is represented as a raster from grid of squares. Actually TIN is a type of DEM and derived from the raster DEM. The TIN representation has information about altitude, slope and aspect and you can use them to extract the areas you require.

How is the CGIAR-CSI SRTM data product projected?

For the CGIAR-CSI SRTM data product, we apply a hole-filling algorithm to provide continuous elevational surfaces. The data is projected in a Geographic (Lat/Long) projection, with the WGS84 horizontal datum and the EGM96 vertical datum.

What is CGIAR-CSI?

Skip to content. CGIAR-CSI. Consortium for Spatial Information. 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 of the tropics and other areas of the developing world.

What does CGIAR stand for?

In this website, the Consortium for Spatial Information (CGIAR-CSI) of the Consultative Group for International Agricultural Research (CGIAR) is offering post-processed 3 arc-second DEM data for the globe. The original SRTM data has been subjected to a number of processing steps to provide seamless and complete elevational surfaces for the globe.

What happened to the original SRTM data?

The original SRTM data has been subjected to a number of processing steps to provide seamless and complete elevational surfaces for the globe.