sEddyProc_sMDSGapFill.RdMDS gap filling algorithm adapted after the PV-Wave code and paper by Markus Reichstein.
sEddyProc_sMDSGapFill(Var = Var.s, QFVar = if (!missing(QFVar.s)) QFVar.s else "none",
QFValue = if (!missing(QFValue.n)) QFValue.n else NA_real_,
V1 = if (!missing(V1.s)) V1.s else "Rg",
T1 = if (!missing(T1.n)) T1.n else 50,
V2 = if (!missing(V2.s)) V2.s else "VPD",
T2 = if (!missing(T2.n)) T2.n else 5,
V3 = if (!missing(V3.s)) V3.s else "Tair",
T3 = if (!missing(T3.n)) T3.n else 2.5,
FillAll = if (!missing(FillAll.b)) FillAll.b else TRUE,
isVerbose = if (!missing(Verbose.b)) Verbose.b else TRUE,
suffix = if (!missing(Suffix.s)) Suffix.s else "",
minNWarnRunLength = if (Var == "NEE") 4 *
.self$sINFO$DTS/24 else NA_integer_,
Var.s, QFVar.s, QFValue.n, V1.s, T1.n,
V2.s, T2.n, V3.s, T3.n, FillAll.b, Verbose.b,
Suffix.s, method = "Reichstein05")Variable to be filled
Quality flag of variable to be filled
Value of quality flag for _good_ (original) data, other data is set to missing
Condition variable 1 (default: Global radiation 'Rg' in W m-2)
Tolerance interval 1 (default: 50 W m-2)
Condition variable 2 (default: Vapour pressure deficit 'VPD' in hPa)
Tolerance interval 2 (default: 5 hPa)
Condition variable 3 (default: Air temperature 'Tair' in degC)
Tolerance interval 3 (default: 2.5 degC)
Fill all values to estimate uncertainties
Print status information to screen
String suffix needed for different processing setups on the same dataset (for explanations see below)
scalar integer: warn if number of subsequent numerically equal values exceeds this number. Set to Inf or NA for no warnings. defaults for "NEE" to records across 4 hours and no warning for others.
deprecated
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specify "Vekuri23" to use the skewness-bias reducing variant
Gap filling results in sTEMP data frame (with renamed columns).
Reichstein, M. et al. (2005) On the separation of net ecosystem exchange into assimilation and ecosystem respiration: review and improved algorithm. Global Change Biology, 11, 1424-1439.