<p dir="ltr">I will help you tomorrow.</p>
<p dir="ltr">Nicolas Cadieux M.Sc.<br>
Les Entreprises Archéotec inc. <br>
8548, rue Saint-Denis Montréal H2P 2H2<br>
Téléphone: 514.381.5112 Fax: 514.381.4995<br>
www.archeotec.ca</p>
<div class="gmail_quote">On May 5, 2015 4:46 PM, Martin Pescador <martin.pescador@inventati.org> wrote:<br type='attribution'><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
Many thanks for responding. I have downloaded a GTOPO30 tile in
geotiff format but am perplexed as to how to proceed. Adding it to a
QGIS project produces a black and white image. It seems I have to
process the image somehow to make it useful visually - could anybody
point me in the direction of of to do this.<br />
<br />
With grateful thanks<br />
<br />
<div>On 05/05/15 19:36, Nicolas Cadieux
wrote:<br />
</div>
<blockquote>
<p dir="ltr">You could use a Dem with a shades model. Look for
srtm, aster Gdem or ETOPO1 or GTOPO30. The last is probably the
best choice at that scale.</p>
<p dir="ltr">Nicolas Cadieux M.Sc.<br />
Les Entreprises Archéotec inc. <br />
8548, rue Saint-Denis Montréal H2P 2H2<br />
Téléphone: 514.381.5112 Fax: 514.381.4995<br />
<a href="http://www.archeotec.ca">www.archeotec.ca</a></p>
<div class="elided-text">On May 5, 2015 14:01, "Martin Pescador
[via OSGeo.org] " <<a href="/user/SendEmail.jtp?type=node&node=5204254&i=0">[hidden email]</a>>
wrote:<br />
<blockquote style="border-left:2px solid #cccccc;padding:0 1em"> I wish to prepare a simple small-scale map of
part of Mongolia, to <br />
illustrate the location of some study sites. To provide some
background <br />
context I would like to use a raster image such as that
provided by <br />
provided by, or from, satellite data. Something similar to
the Natural <br />
Earth raster layers would be fine. Unfortunately, the Natural
Earth data <br />
at 1:10 million is too coarse for my purposes as my map will
be c. 1:1 <br />
million.
<br />
<br />
I have tried using the free Landsat data available from USGS
but I am <br />
not familiar with the myriad of possibilities available or how
to turn a <br />
downloaded image into something I can use. Could anybody more
<br />
knowledgeable than myself point me in the direction of any
useful raster <br />
geotiff images that could fit my purpose, or to instructions
of how to <br />
turn landsat images into something I can use?
<br />
<br />
With grateful thanks! Martino
<br />
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