What is SRTM elevation data?

What is SRTM elevation data?

Overview. The Shuttle Radar Topography Mission (SRTM) obtained elevation data on a near-global scale to generate the most complete high-resolution digital topographic database of Earth.

What is SRTM used for?

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.

What resolution is SRTM data?

1 arc-second
SRTM data have been enhanced to fill areas of missing data to provide more complete digital elevation data with a resolution of 1 arc-second for the United States and 3 arc-seconds for global coverage.

How accurate is SRTM data?

The Shuttle Radar Topography Mission (SRTM) Digital Terrain Elevation Data (DTED) are used with the consensus view that it has a minimum vertical accuracy of 16 m absolute error at 90% confidence (Root Mean Square Error (RMSE) of 9.73 m) world-wide.

How old is SRTM data?

The Shuttle Radar Topography Mission (SRTM) (Wikipedia article) is a NASA mission conducted in 2000 to obtain elevation data for most of the world.

How do I access SRTM data?

The data may be obtained through this URL: http://dds.cr.usgs.gov/srtm/ and go to the directory where both version 1 and version 2 directories may be found.

Is SRTM a SAR?

SRTM represents a reflight of the basic SIR-C/X-SAR payload instruments on the SRL-1 (STS-59, April 9 – 20, 1994) and SRL-2 (STS-68, Sept, 30 to Oct. However, the SRTM configuration considers only two independent SAR systems, one in C-band (JPL instrument), the other in X-band (DLR/ASI).

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 .

Is SRTM bare earth?

We develop the first global ‘Bare-Earth’ Digital Elevation Model (DEM) based on the Shuttle Radar Topography Mission (SRTM) for all landmasses between 60N and 54S. Therefore, our DEM will be valuable for any global applications, such as large scale flood modelling requiring a ‘Bare-Earth’ DEM.

What is the full form of SRTM?

Summary. SRTM (Shuttle Radar Topography Mission) is mounted on a Space Shuttle and obtains Earth surface data by remote sensing technology utilizing a synthetic aperture radar.

How do I get the SRTM DEM?

Is SRTM a Dem?

Advances in SRTM DEM applications. As the first homogeneous, consistent, high-resolution digital elevation dataset with nearly global coverage, SRTM DEM has been widely used in various research fields since its release.

What is SRTM?

SRTM consisted of a specially modified radar system that flew onboard the Space Shuttle Endeavour during an 11-day mission in February of 2000. SRTM collected an unprecedented 8.6 Terabytes of interferometric C-band Synthetic Aperture Radar (SAR) data (equivalent to about 14,317 CDs).

What is the shuttle radar topography mission (SRTM)?

Launch Date: February 11, 2000. The Shuttle Radar Topography Mission (SRTM) obtained elevation data on a near-global scale to generate the most complete high-resolution digital topographic database of Earth.

What are SRTM data voids and how are they filled?

The voids occur in areas where the initial processing did not meet quality specifications. Since SRTM data are one of the most widely used elevation data sources, the NGA filled the voids using interpolation algorithms in conjunction with other sources of elevation data.

Where can I find SRTM/X-SAR data?

The SRTM/X-SAR data may be obtained through the German Aerospace Center (DLR). Coverage Maps indicating the availability of SRTM products are available for download. EarthExplorer can be used to search, preview, and download Shuttle Radar Topography Mission (SRTM) 1 Arc-Second Global data.

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