[OSGeo-Discuss] 30m SRTM worldwide?

[maning sambale]

Dear Sylvain,

The USGS site, provides ~30m SRTM only for the US.  I'm looking the
30m worldwide coverage. That was mentioned in the link I provided.


On Mon, Aug 22, 2011 at 4:59 PM, Sylvain Maillard
<sylvain.maillard at gmail.com> wrote:
> 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.sambale at 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/
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-- 
cheers,
maning
------------------------------------------------------
"Freedom is still the most radical idea of all" -N.Branden
wiki: http://esambale.wikispaces.com/
blog: http://epsg4253.wordpress.com/
------------------------------------------------------