LightResponseCurveFitter_computeLRCGradient: LightResponseCurveFitter computeLRCGradient

View source: R/LRC_base.R

LightResponseCurveFitter_computeLRCGradientR Documentation

LightResponseCurveFitter computeLRCGradient

Description

Gradient of LightResponseCurveFitter_predictLRC

Usage

LightResponseCurveFitter_computeLRCGradient(theta, 
    Rg, VPD, Temp, VPD0 = 10, fixVPD = (k == 
        0), TRef = 15)

Arguments

theta

theta [numeric] -> parameter vector (theta[1] = k (k), theta[2] = beta (beta), theta[3] = alpha, theta[4] = RRef (rb), theta[4] = E0)

Rg

ppfd [numeric] -> photosynthetic flux density [umol / m2 / s] or Global Radiation

VPD

VPD [numeric] -> Vapor Pressure Deficit [hPa]

Temp

Temp [degC] -> Temperature [degC]

VPD0

VPD0 [hPa] -> Parameters VPD0 fixed to 10 hPa according to Lasslop et al 2010

fixVPD

boolean scalar or vector of nrow(theta): fixVPD if TRUE the VPD effect is not considered and VPD is not part of the computation

TRef

numeric scalar of Temperature (degree Celsius) for reference respiration RRef

Author(s)

Department for Biogeochemical Integration at MPI-BGC, Jena, Germany <REddyProc-help@bgc-jena.mpg.de> [cph], Thomas Wutzler <twutz@bgc-jena.mpg.de> [aut, cre], Markus Reichstein <mreichstein@bgc-jena.mpg.de> [aut], Antje Maria Moffat <antje.moffat@bgc.mpg.de> [aut, trl], Olaf Menzer <omenzer@bgc-jena.mpg.de> [ctb], Mirco Migliavacca <mmiglia@bgc-jena.mpg.de> [aut], Kerstin Sickel <ksickel@bgc-jena.mpg.de> [ctb, trl], Ladislav <U+0160>igut <sigut.l@czechglobe.cz> [ctb]


REddyProc documentation built on May 29, 2024, 12:10 p.m.