[GRASS-user] r.sun for selected points

Tyler Smith tyler at plantarum.ca
Wed Aug 13 13:46:20 PDT 2014


Hello,

I'm trying to generate solar irradiance data for a set of points (which
requires r.horizon and r.sun output). My data covers most of eastern
North America at 20m by 20m resolution. This is beyond the capacity of
my computer to process. However, I don't need complete maps for this
area. I only need the beam values for ca. 10,000 point locations. I
expect it would be possible to do this on my laptop, but I can't figure
out how to limit the analysis to these spots. Is it possible? Does
anyone have any suggestions?

I've also asked my local tech people to install GRASS on our cluster,
that's turned into a complicated procedure of its own.

Best,

Tyler



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