Description Usage Arguments Value Author(s) See Also Examples
View source: R/fire_index_functions.r
A coarse but quick function to calculate the number of hours (down to approximately 2-minute resolution) that the sun is above the horizon for a given day of the year, and latitude.
1 | dayintegral(dayofyear, latitude)
|
dayofyear |
Day of year (Julian day). |
latitude |
Latitude, southern latitudes take negative values |
The number of hours, as a floating point value, the sun was above the horizon.
Grant Williamson
daylengths
,hourwatt
,sunaltitude
1 2 3 | latitude = -42
doy = 23
dayintegral(doy,latitude)
|
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