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Glossary of Solar Radiation Resource Terms |
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Other relevant glossaries
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Optical Depth -
(technically known as the relative aerosol optical depth) usually considered
to be synonymous with the airmass,
is the approximate number of aerosols in a path through the atmosphere relative to the
standard number of aerosols in a vertical path through a clean, dry atmosphere at sea
level.
Orientation -
the direction that a solar energy
collector faces. The two components of orientation
are the tilt angle (the angle the collector makes from the horizontal) and the
aspect angle (the angle the collector makes from North).
Ozone Layer -
the layer in the atmosphere with the most ozone, usually at an altitude of 25 km.
Ozone is created from oxygen by
ultraviolet radiation bombardment.
Because ozone tends to absorb and block ultraviolet radiation, a substantial ozone
layer reduces the risk of skin cancer.
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