An error occurred while loading the file. Please try again.
-
Delaigue Olivier authored9affb66e
\encoding{UTF-8}\name{RunModel_CemaNeige}\alias{RunModel_CemaNeige}\title{Run with the CemaNeige snow module}\description{Function which performs a single run for the CemaNeige snow module at the daily or hourly time step.}\usage{RunModel_CemaNeige(InputsModel, RunOptions, Param)}\arguments{\item{InputsModel}{[object of class \emph{InputsModel}] see \code{\link{CreateInputsModel}} for details}\item{RunOptions}{[object of class \emph{RunOptions}] see \code{\link{CreateRunOptions}} for details}\item{Param}{[numeric] vector of 2 (or 4 parameters if \code{IsHyst = TRUE}, see \code{\link{CreateRunOptions}} for details) \tabular{ll}{ CemaNeige X1 \tab weighting coefficient for snow pack thermal state [-] \cr CemaNeige X2 \tab degree-day melt coefficient [mm/°C/time step] \cr CemaNeige X3 \tab (optional) accumulation threshold [mm] (needed if \code{IsHyst = TRUE}) \cr CemaNeige X4 \tab (optional) percentage (between 0 and 1) of annual snowfall defining the melt threshold [-] (needed if \code{IsHyst = TRUE}) \cr }}}\value{[list] containing the function outputs organised as follows: \tabular{ll}{ \emph{$DatesR } \tab [POSIXlt] series of dates \cr \emph{$CemaNeigeLayers} \tab [list] list of CemaNeige outputs (1 list per layer) \cr \emph{$CemaNeigeLayers[[iLayer]]$Pliq } \tab [numeric] series of liquid precip. [mm/time step] \cr \emph{$CemaNeigeLayers[[iLayer]]$Psol } \tab [numeric] series of solid precip. [mm/time step] \cr \emph{$CemaNeigeLayers[[iLayer]]$SnowPack } \tab [numeric] series of snow pack (snow water equivalent) [mm] \cr \emph{$CemaNeigeLayers[[iLayer]]$ThermalState} \tab [numeric] series of snow pack thermal state [°C] \cr \emph{$CemaNeigeLayers[[iLayer]]$Gratio } \tab [numeric] series of Gratio [0-1] \cr \emph{$CemaNeigeLayers[[iLayer]]$PotMelt } \tab [numeric] series of potential snow melt [mm/time step] \cr \emph{$CemaNeigeLayers[[iLayer]]$Melt } \tab [numeric] series of actual snow melt [mm/time step] \cr \emph{$CemaNeigeLayers[[iLayer]]$PliqAndMelt } \tab [numeric] series of liquid precip. + actual snow melt [mm/time step] \cr \emph{$CemaNeigeLayers[[iLayer]]$Temp } \tab [numeric] series of air temperature [°C] \cr \emph{$CemaNeigeLayers[[iLayer]]$Gthreshold } \tab [numeric] series of melt threshold [mm] \cr \emph{$CemaNeigeLayers[[iLayer]]$Glocalmax } \tab [numeric] series of local melt threshold for hysteresis [mm] \cr \emph{$StateEnd} \tab [numeric] states at the end of the run: CemaNeige states [mm & °C]. See \code{\link{CreateIniStates}} for more details \cr }Refer to the provided references or to the package source code for further details on these model outputs.}\details{The choice of the CemaNeige version (i.e. with or without hysteresis) is explained in \code{\link{CreateRunOptions}}. \crFor further details on the model, see the references section. \crFor further details on the argument structures and initialisation options, see \code{\link{CreateRunOptions}}.}\examples{library(airGR)## load of catchment datadata(L0123002)7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
## preparation of the InputsModel object
InputsModel <- CreateInputsModel(FUN_MOD = RunModel_CemaNeige, DatesR = BasinObs$DatesR,
Precip = BasinObs$P,TempMean = BasinObs$T,
ZInputs = BasinInfo$HypsoData[51], HypsoData=BasinInfo$HypsoData,
NLayers = 5)
## run period selection
Ind_Run <- seq(which(format(BasinObs$DatesR, format = "\%Y-\%m-\%d")=="1990-01-01"),
which(format(BasinObs$DatesR, format = "\%Y-\%m-\%d")=="1999-12-31"))
## --- original version of CemaNeige
## preparation of the RunOptions object
RunOptions <- CreateRunOptions(FUN_MOD = RunModel_CemaNeige, InputsModel = InputsModel,
IndPeriod_Run = Ind_Run)
## simulation
Param <- c(CNX1 = 0.962, CNX2 = 2.249)
OutputsModel <- RunModel_CemaNeige(InputsModel = InputsModel,
RunOptions = RunOptions, Param = Param)
## results preview
plot(OutputsModel)
## --- version of CemaNeige with the Linear Hysteresis
## preparation of the RunOptions object
RunOptions <- CreateRunOptions(FUN_MOD = RunModel_CemaNeige, InputsModel = InputsModel,
IndPeriod_Run = Ind_Run, IsHyst = TRUE)
## simulation
Param <- c(CNX1 = 0.962, CNX2 = 2.249, CNX3 = 100, CNX4 = 0.4)
OutputsModel <- RunModel_CemaNeige(InputsModel = InputsModel,
RunOptions = RunOptions, Param = Param)
## results preview
plot(OutputsModel)
}
\author{
Laurent Coron, Audrey Valéry, Vazken Andréassian, Olivier Delaigue, Guillaume Thirel
}
\references{
Riboust, P., Thirel, G., Le Moine, N. and Ribstein, P. (2019).
Revisiting a simple degree-day model for integrating satellite data: Implementation of SWE-SCA hystereses.
Journal of Hydrology and Hydromechanics, 67(1), 70–81, \doi{10.2478/johh-2018-0004}.
\cr\cr
Valéry, A., Andréassian, V. and Perrin, C. (2014).
"As simple as possible but not simpler": What is useful in a temperature-based snow-accounting routine?
Part 1 - Comparison of six snow accounting routines on 380 catchments.
Journal of Hydrology, 517(0), 1166-1175, \doi{10.1016/j.jhydrol.2014.04.059}.
\cr\cr
Valéry, A., Andréassian, V. and Perrin, C. (2014).
"As simple as possible but not simpler": What is useful in a temperature-based snow-accounting routine?
Part 2 - Sensitivity analysis of the Cemaneige snow accounting routine on 380 catchments.
Journal of Hydrology, 517(0), 1176-1187, \doi{10.1016/j.jhydrol.2014.04.058}.
}
\seealso{
\code{\link{RunModel_CemaNeigeGR4J}}, \code{\link{CreateInputsModel}}, \code{\link{CreateRunOptions}},
\code{\link{CreateIniStates}}, \code{\link{CreateCalibOptions}}.
}