What is srtm3?
Void-Filled “SRTM Plus” Released (SRTM NASA V3) ASTER is a sensor on NASA’s Terra satellite that uses stereoscopic imaging to measure elevations via optical parallax where not obscured by clouds. Additional void filling of small areas used the GMTED2010 elevation model compiled by the US Geological Survey.
What is SRTM data in GIS?
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 to date.
Does Google Earth use SRTM?
Google Earth uses digital elevation model (DEM) data collected by NASA’s Shuttle Radar Topography Mission (SRTM). 1 arc-second (~30m) SRTM is now available worldwide.
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 a DTED?
SRTM (Shuttle Radar Topography Mission) is the default data format captured by NASA/NGA if I recall correctly.. DTED (Digital Terrain Elevation Data) is a military specification derived from SRTM. It is fairly close to the SRTM data values.
Is LiDAR a SRTM?
The Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM) is one of the most complete and frequently used global-scale DEM products in various applications. Then, the airborne LiDAR derived DEM, covering ~5% of the study area, was used to evaluate the accuracy of the SRTM DEM.
What is the use of SRTM?
SRTM DEM has been successfully used in geological studies. The popular method is merging multi-source remote sensing images, such as high-resolution images with low-resolution images or optical images with radar images, to generate a fused image which combines the advantages of different images.
What is the accuracy of Google Earth elevation?
The accuracy of SRTM Data can range from 5 to 10 meter, depending on where you are.
Which DEM is used in Google Earth?
digital elevation model
Google Earth uses digital elevation model (DEM) data collected by NASA’s Shuttle Radar Topography Mission (SRTM) enabling 3D view of the whole earth. Google Earth also supports managing 3D Geospatial data through Keyhole Markup Language (KML).
Where can I download SRTM?
The SRTM/X-SAR data may be obtained through the German Aerospace Center (DLR).
Where can I download DTED data?
GET DATA: http://earthexplorer.usgs.gov/, Access the Shuttle Radar Topography Mission data using the USGS EarthExplorer.
When was the first release of SRTM data?
The first release of Shuttle Radar Topography Mission (SRTM) data was provided in 1-degree digital elevation model (DEM) tiles from the USGS FTP server ( ftp://e0srp01u.ecs.nasa.gov/srtm/) in 2003. The data was released continent by continent, as and when the data was processed by NASA and the USGS.
Where can I find SRTM and X band data?
Research grade SRTM (C-band) data are available through NASA JPL. These data were sampled at 3 arc-seconds using a nearest neighbor resampling technique for global coverage. The German and Italian space agencies operated the X-band hardware and processed the data independently into a separate elevation data set.
Where can I find NASA SRTM version 3.0?
This is the third release in the series providing access to additional NASA SRTM Version 3.0 Global 1 arc second (SRTMGL1) data coinciding with areas released by the USGS. The data are available for download via Earthdata Search, the LP DAAC Data Pool and the Global Data Explorer ( GDEx ). For further information, contact LP DAAC User Services .
Where can I find digital elevation data from SRTM?
The NASA Shuttle Radar Topographic Mission (SRTM) has provided digital elevation data (DEMs) for over 80% of the globe. 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.