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sirad (version 2.0-7)

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 ground-truth data as well as a function for auto-calibration. The FAO Penmann-Monteith equation to calculate evapotranspiration is also included.

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Version

Install

install.packages('sirad')

Monthly Downloads

314

Version

2.0-7

License

GPL-2

Maintainer

Jedrzej S Bojanowski

Last Published

January 23rd, 2013

Functions in sirad (2.0-7)

et0

FAO Penman-Monteith evapotranspiration equation
ap

Angstrom-Prescott solar radiation model
CSTmap

Clear sky transmissivity map
rns

Net shortwave radiation
es

Mean saturation vapour pressure
CFC

Annual mean of cloud fraction cover
cstRead

Read values of clear sky transmissivity
radians

Convert degrees to radians
bc

Bristow-Campbell model
modeval

Estimators of the model performance.
sirad-package

Functions for calculating daily solar radiation and avapotranspiration
bccal

Calibrate Bristow-Campbell model
hauto

Auto-calibrate Hargreaves model
ts.CMSAF

Extract punctual data from CM SAF data.
wind2

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

Weather data
cst

Estimate clear sky transmissivity
sucal

Calibrate Supit-Van Kappel model
rnl

Net longwave radiation
psychC

Psychrometric constant
hacal

Calibrate Hargreaves model
apcal

Calibrate Angstrom-Prescott model
bcauto

Auto-calibrate Bristow-Campbell model
extrat

Calculate extraterrestrial solar radiation
degrees

Convert radians to degrees
mh

Mahmood-Hubbard solar radiation model
dayOfYear

Convert 'Date' to number of day in a year
su

Supit-Van Kappel solar radiation model
deltaVP

Slope of saturation vapour pressure curve
ha

Hargreaves solar radiation model