sRegrRref: sEddyProc$sRegrRref - Estimation of the time series of...

In REddyProc: Data processing and plotting utilities of (half-)hourly eddy-covariance measurements

Description

Estimation of the reference respiration Rref of fLloydTaylor for successive periods

Usage

sRegrRref(NightFlux.s, TempVar.s, E_0.s, T_ref.n, WinDays.i = 3, 
    DayStep.i = 4, CallFunction.s = "")

Arguments

NightFlux.s	Variable with (original) nighttime ecosystem carbon flux, i.e. respiration
TempVar.s	Variable with (original) air or soil temperature (degC)
E_0.s	Temperature sensitivity E_0 estimated with sRegrE0fromShortTerm
T_ref.n
WinDays.i	Window size for fLloydTaylor regression in days
DayStep.i	Window step for fLloydTaylor regression in days
CallFunction.s	Name of function called from

Details

While parameter E0 in the Temperature-Respiration relationship (fLloydTaylor is kept konstant, parameter Rref is allowed to change with time. This method estimates Rref for a series of time windows of length 2*WinDays.i+1 days shifted by DayStep.i days.

For some of the windows, it maybe not be possible to estimate Rref. These missing values are filled by linear interpolation by function fInterpolateGaps.

Value

Data vector (length number of windows) with reference respiration (R_ref, flux units)

Author(s)

AMM (Department for Biogeochemical Integration at MPI-BGC, Jena, Germany)

REddyProc documentation built on May 2, 2019, 5:19 p.m.