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Questions tagged [srtm]

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. SRTM consisted of a specially modified radar system that flew onboard the Space Shuttle Endeavour during an 11-day mission in February of 2000. As of 2016, it is now almost universally available at 1-Arc Second resolution.

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. SRTM consisted of a specially modified radar system that flew onboard the Space Shuttle Endeavour during an 11-day mission in February of 2000.

Source: Jet Propulsion Laboratory.

Link to Wikipedia article.

http://www.digital-geography.com/announcement-realease-worldwide-high-resultion-srtm-data-30m/

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What is the absolute vertical accuracy and the relative vertical accuracy of SRTM 1-arc second?

When I was looking for the accuracy values for the srtm dem, I found research papers trying to find out these values for its own selected area of study, some of them assume that the absolute value in Africa is around 5.6. I am new to studying remote…
Spirit Garden
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Can SRTM preserve topological feature well?

There are studies on SRTM data vertical elevation accuracy, which seem to indicate that there are around an average of 5m vertical error when compared with a DEM derived from cartographic maps. Obviously, with that kind of error, one can't rely on…
Graviton
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Problem with SRTM 30 m data while creating watershed

I have used SRTM 90 m in many of my hydrology projects for creating watershed and so far it has proven its worthiness. But, I haven't had any luck with its newer and high resolution SRTM 30 m prodigy. I have attached an image comparing flow…
Suman
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Need to extract coordinate information from SRTM 3 files

From this link here - http://www2.mmm.ucar.edu/wrf/users/docs/user_guide_V3/users_guide_chap3.htm#_Writing_Static_Data I wrote code in java to transform SRTM3 data into WRF geogrid data. I read the SRTM3 file data and rewrote it south to north as a…
user36959
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SRTM 1arc second bulk download

This has been asked before, I am aware, but the web links seem to all be obsolete. Using EarthExplorer, I can get the dataset and I can download... each tile individually. I do not want to get any kind of nice ui and fancy search options, but really…
TomGreen
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SRTM/ 90m DEM - slope calculations

I have a question relating to a comment in a closed discussion (Does a value in srtm dem file refer to the center or corner of a cell?). The comment was following: "When talking about any DEM, it's resolution is important. SRTM has a resolution of…
mikbet
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full SRTM1 arc second download

I would like to download the new released maps (2014) SRTM1 but where can we find them? Is there an FTP server to download the whole images?
littlecloud
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