DH {FAO56} | R Documentation |
Daylight Hours (N)
Description
DH
returns the value of daylight hours.
Usage
DH(omega_s)
Arguments
omega_s |
A numeric scalar that denotes the sunset hour angle [rad].
|
Details
This is a function to calculate the daylight hours.
Value
The function returns the value of daylight hours as a numeric scalar.
Reference
Allen, R. G., Pereira, L. S., Raes, D., & Smith, M. (1998).
Crop evapotranspiration - Guidelines for computing crop water requirements - FAO Irrigation and drainage paper 56.
Fao, Rome, 300(9), D05109.
See Also
SunHA
.
Examples
DH(omega_s = 1.527)
[Package
FAO56 version 1.0
Index]