daylight_hours: Maximum daylight hours
In WDNR-Water-Use/CSLSevap: Evapo(transpi)ration Calculations
Description
Usage
Arguments
Value
References
View source: R/radiation_functions.R
Description
Calculates the maximum number of daylight hours using Equation 34 from Allen
et al. (1998). Identical to Equation 2.3 in Harwell (2012).
Usage
1
daylight_hours(omega_s)
Arguments
omega_s
sunset hour angle (radians)
Value
D
maximum possible daylight hours
References
Allen, R. G., Pereira, L. S., Raes, D., & Smith, M. (1998). Crop
evapotranspiration: Guidelines for computing crop water requirements. Rome:
FAO. Retrieved from http://www.fao.org/docrep/X0490E/x0490e00.htm.
Harwell, G.R., 2012, Estimation of evaporation from open water—A
review of selected studies, summary of U.S. Army Corps of Engineers data
collection and methods, and evaluation of two methods for estimation of
evaporation from five reservoirs in Texas: U.S. Geological Survey
Scientific Investigations Report 2012–5202, 96 p.
WDNR-Water-Use/CSLSevap documentation built on April 9, 2021, 1:35 a.m.
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Description Usage Arguments Value References
View source: R/radiation_functions.R
Description
Calculates the maximum number of daylight hours using Equation 34 from Allen et al. (1998). Identical to Equation 2.3 in Harwell (2012).
Usage
1 | daylight_hours(omega_s)
|
Arguments
omega_s |
sunset hour angle (radians) |
Value
D |
maximum possible daylight hours |
References
Allen, R. G., Pereira, L. S., Raes, D., & Smith, M. (1998). Crop evapotranspiration: Guidelines for computing crop water requirements. Rome: FAO. Retrieved from http://www.fao.org/docrep/X0490E/x0490e00.htm.
Harwell, G.R., 2012, Estimation of evaporation from open water—A review of selected studies, summary of U.S. Army Corps of Engineers data collection and methods, and evaluation of two methods for estimation of evaporation from five reservoirs in Texas: U.S. Geological Survey Scientific Investigations Report 2012–5202, 96 p.
R Package Documentation
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We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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