LightResponseCurveFitter_computeLRCGradient: LightResponseCurveFitter computeLRCGradient

In REddyProc: Post Processing of (Half-)Hourly Eddy-Covariance Measurements

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 <[e-mail]> [cph], Thomas Wutzler <[e-mail]> [aut, cre], Markus Reichstein <[e-mail]> [aut], Antje Maria Moffat <[e-mail]> [aut, trl], Olaf Menzer <[e-mail]> [ctb], Mirco Migliavacca <[e-mail]> [aut], Kerstin Sickel <[e-mail]> [ctb, trl], Ladislav <U+0160>igut <[e-mail]> [ctb]

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