gompertz.calc.example: calculate dates for radial growth onset, cessation and length

In AlexSoudant/isoclim-demonstration: Climate Influence Analysis over Stable Isotope Time Series in R

Description

calculate dates for radial growth onset, cessation and length by three methods to choose from (NEE,ET or PAR/T thresholds) values of thresholds to determine the radial growth period can be changed in the iso.clim.R file.

Usage

gs.calc(y, GS.method, cor.iso, treshold.Rad, treshold.T, treshold.NEE.onset, treshold.NEE.cessation, treshold.ET.onset, treshold.ET.cessation)

Arguments

y	study period over which to calculate dates for radial growth onset, cessation and length
GS.method	which method to use to calculate dates for radial growth onset, cessation and length
cor.iso	atmospheric corrected isotope time series
treshold.Rad	Threshold to apply on the PAR variable to calculate dates for radial growth onset and cessation
treshold.T	Threshold to apply on the air temperature variable to calculate dates for radial growth onset and cessation
treshold.NEE.onset	Threshold to apply on the NEE to calculate dates for radial growth onset
treshold.NEE.cessation	Threshold to apply on the NEE variable to calculate dates for radial growth cessation
treshold.ET.onset	Threshold to apply on the ET variable to calculate dates for radial growth onset
treshold.ET.cessation	Threshold to apply on the ET variable to calculate dates for radial growth cessation

Details

Threshold values can be changed in iso.clim.R

Value

data.gs

the dates for onset and cessation of radial growth and the method used

Author(s)

Alex Soudant Maintainer: Alex Soudant <[e-mail]>

AlexSoudant/isoclim-demonstration documentation built on May 5, 2019, 4:53 a.m.