flux v0.3-0


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Flux rate calculation from dynamic closed chamber measurements

Functions for the calculation of greenhouse gas flux rates from closed chamber concentration measurements. The package follows a modular concept: Fluxes can be calculated in just two simple steps or in several steps if more control in details is wanted. Additionally plot and preparation functions as well as functions for modelling gpp and reco are provided.

Functions in flux

Name Description
inspect Inspect and alter prepared ghg concentration data
lips Linear interpolation between data points similar to approx.
append.df Append a data.frame to another including consistency checks
amc Climate station data from 2009 to 2011 in the Ahlenmoor peat bog, Northeast Germany
flux.calib Determine calibration measurement ranges according to the dates of real measurements
reco.bulk Bulk fitting of Reco and GPP models
budget.ie Estimate interpolation errors for GPP and Reco budgets
auc Calculate the area under a line(curve).
export simple export wrapper
tt.pre One day data from closed chamber measurements in the Trebeltal
plot.gpp Plot diagnostic plots for GPP (NEE) models derived with reco and gpp.
tt.nee Medium frequency concentration data and fluxes from non-steady state closed chamber measurements
budget.reco Predict fluxes from GPP and Reco models and prepare for summing them up to budgets.
flux-package Flux rate estimation with dynamic closed chamber data
plot.reco Plot diagnostic plots for Reco models.
gflux Calculate gas flux rate from two concentrations
plot.fluss Functions for bulk plotting of concentration change with time as kind of diagnostic plots for flux rate calculations
reco Model R_eco from CO2 exchange closed chamber data.
fluxx Estimate (ghg) flux rates from online dynamic closed chamber measurements in through-flow mode.
gpp Model GPP from CO2 closed chamber flux data
round.POSIXlt Round times.
flux-internal Internal functions of the package flux that are usually not called (or only implicitly) by the user
tbl8 Extract the relevant data of a bulk model object to a data.frame
flux Estimate gas flux rates using non-steady-state closed chamber data
checkm Bring modelled and measured values together based on timestamp
modjust Adjust Reco models
chop Prepare data for flux rate estimation with flux or GPP/Reco modelling.
amd Closed chamber fluxes from 2009 to 2011 in the Ahlenmoor peat bog, Northeast Germany
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Type Package
Date 2014-04-23
License GPL-2
LazyLoad yes
Packaged 2014-04-25 08:34:44 UTC; Juri
NeedsCompilation no
Repository CRAN
Date/Publication 2014-04-25 11:02:53

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