Skymodels gallery

All skymodel hillshades on this page were created by the skymodelling algorithm of the raster chunk processing software, using 2x vertical exaggeration, with a sun at elevation 45°, azimuth 335°. The centre of the image is at 54° 46′ north, 127° 17′ West.

At the top are the five basic lighting scenarios: the uniform sky, the clear sky, the overcast sky, the sharp sky and the turbid sky. Below those come the further 15 more complex skymodels that SkyLum can also produce.

For more about Skymodels, see Kennelly and Stewart’s 2014 paper.

Smithers_skymodel_uniform_45_335
Uniform
Smithers_skymodel_clear_45_335
Clear
Smithers_skymodel_overcast_45_335
Overcast
Smithers_skymodel_sharp_45_335
Sharp
Smithers_skymodel_turbid_45_335
Turbid
Smithers_skymodel_type_1_45_335
Type 1: CIE standard overcast sky, alternative form, steep luminance gradation toward zenith, azimuthal uniformity
Smithers_skymodel_type_2_45_335
Type 2: Overcast, steep luminance gradation and slight brightening towards the sun
Smithers_skymodel_type_3_45_335
Type 3: Overcast, moderately graded with azimuthal uniformity
Smithers_skymodel_type_4_45_335
Type 4: Overcast, moderately graded and slight brightening towards the sun
Smithers_skymodel_type_5_45_335
Type 5: Uniform luminance
Smithers_skymodel_type_6_45_335
Type 6: Partly cloudy, no gradation towards zenith, slight brightening towards the sun
Smithers_skymodel_type_7_45_335
Type 7: Partly cloudy, no gradation towards zenith, brighter circumsolor region
Smithers_skymodel_type_8_45_335
Type 8: Partly cloudy, no gradation towards zenith, distinct solar corona
Smithers_skymodel_type_9_45_335
Type 9: Partly cloudy, with obscured sun
Smithers_skymodel_type_10_45_335
Type 10: Partly cloudy, with brighter circumsolar region
Smithers_skymodel_type_11_45_335
Type 11: White-blue sky with distinct solar corona
Smithers_skymodel_type_12_45_335
Type 12: CIE standard clear sky, low illuminance turbidity
Smithers_skymodel_type_13_45_335
Type 13: CIE standard clear sky, polluted atmosphere
Smithers_skymodel_type_14_45_335
Type 14: Cloudless turbid sky with broad solar corona
Smithers_skymodel_type_15_45_335
Type 15: White-blue turbid sky with broad solar corona