Where can I get SRTM?

Where can I get SRTM?

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 .

How do I get SRTM data?

The SRTM/X-SAR data may be obtained through the German Aerospace Center (DLR).

What is DEM SRTM?

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 is SRTM 30?

SRTM30 is a near-global digital elevation model (DEM) comprising a combination of data from the Shuttle Radar Topography Mission, flown in February, 2000 and the the U.S. Geological Survey’s GTOPO30 data set. It can be considered to be either an SRTM data set enhanced with GTOPO30, or as an upgrade to GTOPO30.

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.

Is SRTM a DTM or DSM?

For the associated built up areas the SRTM DSM dataset is in average about 2.5 meters higher than the official DTM for the Cologne Region and the Ruhr Basin. Depending on the relief the overestimation is higher for the Rhineland Slate Mountains….2. SRTM Digital Terrain Model (DTM) Processing.

Forest Type	Mean Value	Standard Deviation
Mixed	10.13	6.93

What is the difference between DEM and SRTM?

On technical side, SRTM 30 meter DEM is supposed to be more accurate than ASTER 30 DEM. The reason behind is the technique adopted for DEM derivation. SRTM uses radar observations to construct DEM while ASTER uses stereo imagery and photogrammetric techniques to extract 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.

How does ArcGIS process SRTM data?

SRTM PROCESSING-ArcGIS

1. Download the area of interest:
2. Unzip the elevation file in a new sub-directory. a. Ex. D:\raw\SRTM\new.
3. Open a command prompt. a. Start > Run > type ‘cmd’ and press enter. b. Navigate to \raw\SRTM\new\ c.
4. Edit the textfile in excel to add variables for our batchfile.

How do I open a HGT file?

HGT files can be opened with VTBuilder, ArcGIS Pro, and Safe Software’s FME Desktop. DG Terrain Viewer works, too, for both Windows and Linux. You can also import it into Blender with the blender-osm addon. If you’re using VTBuilder to open your HGT file, it’s not done within the regular Open Project menu item.

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.

How accurate are elevations in Google Earth?

The accuracy of SRTM Data can range from 5 to 10 meter, depending on where you are.

What does SRTM stand for?

The Shuttle Radar Topography Mission (SRTM, DTS-99) from February 11 to 22, 2000 was an US-German-Italian effort to produce a first global digital elevation model (DEM).

Where can I download the USGS SRTM data?

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. The SRTM data is available as 3 arc second (approx. 90m resolution) DEMs. A 1 arc second data product was also produced but is not available for all countries.

What is an SRTM 90m dem?

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. All are produced from a seamless dataset to allow easy mosaicing.

How was the SRTM X-SAR dem generated?

The SRTM X-SAR DEM was generated at DLR from this instrument’s data using radar interferometry technique. The data was acquired simultaneously from aboard the Space Shuttle Endeavor employing two SAR antennas, one inside the Space Shuttle’s cargo bay, the other at the end of a 60 m extension pole.