Difference between revisions of "Solar Radiation Observation"
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Solar Radiation Observation
</dt>
An evaluation of the radiation from the sun that reaches the observation
point. The observing instrument is usually a pyrheliometer
or pyranometer.
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Two types of such observation are taken. The more common consists of
measurements of the radiation reaching a horizontal surface, consisting of
both radiation from the sun (direct solar radiation) and that reaching the
instrument indirectly by scattering in the atmosphere (diffuse sky radiation).
The other type of observation involves the use of an equatorial mount that
keeps the instrument pointed directly at the sun at all times. The sensitive
surface of the instrument is normal to the path of the radiation and is
shielded from indirect radiation from the sky. [[/a>|/a>
]]
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
