Description Usage Arguments Details Value Author(s) Examples
'extrat' calculates hourly and daily extraterrestrial solar radiation for a given time and location.
1 | extrat(i, lat)
|
i |
day number in the year (julian day) |
lat |
latitude in radians |
Solar radiation outside of the earth's atmosphere is called extraterrestrial solar radiation. It can be calculated based on solar geometry.
List of 3 elements:
ExtraTerrestrialSolarRadiationDaily |
daily sum of extraterrestrial radiation [MJm-2] |
TerrestrialSolarRadiationHourly |
vector of length 24 of hourly sums of extraterrestrial radiation [MJm-2] |
DayLength |
day length in hours |
Jedrzej S. Bojanowski
1 2 |
$ExtraTerrestrialSolarRadiationDaily
[1] 4.871769
$ExtraTerrestrialSolarRadiationHourly
[1] 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000
[8] 0.0000000 0.0000000 0.2698524 0.6964953 0.9646944 1.0561721 0.9646944
[15] 0.6964953 0.2698524 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000
[22] 0.0000000 0.0000000 0.0000000
$DayLength
[1] 7.020899
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