#2014: r.sun using EPSG:3031 projection gives strange results
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Reporter: pierreroudier | Owner: grass-dev@…
Type: defect | Status: new
Priority: normal | Milestone: 7.0.0
Component: Raster | Version: svn-trunk
Keywords: r.sun | Platform: Linux
Cpu: x86-64 |
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Comment(by pierreroudier):
Hi Hamish,
Sorry it took me so long to get back to you, but finally got some time for
further testing,
If you look at the attached file, you can see that it seems that r.sun is
integrating the latitude and altitude effects OK, but the shadowing seem
to be the wrong way round: on the Ross Sea Region pictured, the South Pole
is on the "top" of the map, so faces looking "up" should receive less
solar energy than faces looking "down".
Does that make sense?
Cheers,
Pierre
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Ticket URL: <https://trac.osgeo.org/grass/ticket/2014#comment:2>
GRASS GIS <http://grass.osgeo.org>
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