Learn R Programming

⚠️There's a newer version (2.3-3) of this package.Take me there.

sirad (version 2.0-2)

Functions for calculating daily solar radiation and evapotranspiration

Description

Package provides functions to calculate daily solar radiation at horizontal surface using several well-known models. It also includes functions for model calibration based on groud-truth data as well as a function for auto-calibration. The FAO Penmann-Monteith equation to calculate evapotranspiration is also included.

Copy Link

Version

Install

install.packages('sirad')

Monthly Downloads

970

Version

2.0-2

License

GPL-2

Homepage

http://sirad.r-forge.r-project.org/

Maintainer

Jedrzej S Bojanowski

Last Published

September 7th, 2012

Functions in sirad (2.0-2)

Mean saturation vapour pressure

Convert radians to degrees

FAO Penman-Monteith evapotranspiration equation

Hargreaves solar radiation model

Convert wind speed measured at a certain height to the wind speed at 2 meters

Annual mean of cloud fraction cover

Functions for calculating daily solar radiation and avapotranspiration

Net shortwave radiation

Supit-Van Kappel solar radiation model

Auto-calibrate Hargreaves model

Estimators of the model performance.

Bristow-Campbell model

Extract punctual data from CM SAF data.

Slope of saturation vapour pressure curve

Net longwave radiation

Convert degrees to radians

Calibrate Supit-Van Kappel model

Angstrom-Prescott solar radiation model

Calibrate Angstrom-Prescott model

Calibrate Bristow-Campbell model

Estimate clear sky transmissivity

Calibrate Hargreaves model

Mahmood-Hubbard solar radiation model

Auto-calibrate Bristow-Campbell model

Convert 'Date' to number of day in a year

Calculate extraterrestrial solar radiation

Psychrometric constant