Last data update: 2014.03.03
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R: Calculate solar postion parameters
Calculate solar postion parameters
Description
Pre-calculates astronomical solar position components for
Earth-location sampling functions.
Usage
solar(day)
Arguments
day |
vector of date-time values
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Value
A list of the following values for each input time:
solarTime |
solar time
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sinSolarDec |
sine solar declination
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cosSolarDec |
cosine solar declination
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Note
No account is made for horizon refraction, but this was available in the original
(Javascript) code.
Author(s)
Michael D. Sumner
References
http://www.srrb.noaa.gov/highlights/sunrise/azel.html
Results
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