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Topic: solar

r.horizon Computes horizon angle height from a digital elevation model.
r.sun Solar irradiance and irradiation model.
r.sunhours Calculates solar elevation, solar azimuth, and sun hours.
r.sunmask Calculates cast shadow areas from sun position and elevation raster map.

See also the corresponding keyword solar for additional references.

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© 2003-2018 GRASS Development Team, GRASS GIS 7.5.svn Reference Manual