Hi, you can also download them from the earthexplorer ui from the USGS ( http://earthexplorer.usgs.gov) more informations on http://eros.usgs.gov/#/Find_Data/Products_and_Data_Available/SRTM
cheers, Sylvain 2011/8/22 maning sambale <emmanuel.samb...@gmail.com> > I got this news recently, from this website, one can download ~30m SRTM > data: > http://eoweb.dlr.de:8080/index.html > > "The X-band SRTM DEM data are provided in DTED format. Detailed > information on the DTED format > can be found in the document 'Product Description of the SRTM > DTED-Format' (SRTM/PD-03/11/03) > available at http://www.dlr.de/srtm/docs/SRTM-XSAR-DEM-DTED-1.1.pdf. > > The DEM and HEM data are in geographic (Lat/Long) projection, datum > WGS84. The elevation values > are also WGS84, as specified in the product description of the SRTM > DTED-format. > > The DEMs inside the compressed archive are distributed as individual > files, i.e. they are not > mosaicked into one large DEM file. Each DEM covers an area of 15' by > 15'. The filename of the > individual DEM file specifies the bottom left coordinate of the > corresponding 15' by 15' DEM tile. > > One pixel of the DEM files corresponds to approximately 25 m x 25 m on > the ground. The elevation > values are provided at a resolution of 1 m. The horizontal accuracy of > the SRTM X-band DEMs is ±20 > m (abs.) / ±15 m (rel.), both 90% CE. The vertical accuracy is ±16 m > (abs.) / ±6 m (rel.), both 90% LE. > Precise information on vertical and horizontal accuracies for > individual tiles can be found in the > accuracy description record (ACC) of the DTED file. " > > I tried to access the public portal, but I just got the "Loading java > virtual machine" message. > Anyone here, who can access the data and is it really available to the > public? > > -- > cheers, > maning > ------------------------------------------------------ > "Freedom is still the most radical idea of all" -N.Branden > wiki: http://esambale.wikispaces.com/ > blog: http://epsg4253.wordpress.com/ > ------------------------------------------------------ > _______________________________________________ > Discuss mailing list > Discuss@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/discuss >
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