RunModel_CemaNeigeGR4J.Rd 8.11 KB
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\encoding{UTF-8}
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\name{RunModel_CemaNeigeGR4J}
\alias{RunModel_CemaNeigeGR4J}
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\title{Run with the CemaNeigeGR4J hydrological model}
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\usage{
RunModel_CemaNeigeGR4J(InputsModel, RunOptions, Param)
}
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\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 6 parameters
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\tabular{ll}{                                                                      
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GR4J X1      \tab production store capacity [mm]                                \cr
GR4J X2      \tab intercatchment exchange coefficient [mm/d]                    \cr
GR4J X3      \tab routing store capacity [mm]                                   \cr
GR4J X4      \tab unit hydrograph time constant [d]                             \cr
CemaNeige X1 \tab weighting coefficient for snow pack thermal state [-]         \cr
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CemaNeige X2 \tab degree-day melt coefficient [mm/°C/d]                       \cr
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}}
}
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\value{
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[list] list containing the function outputs organised as follows:                                         
         \tabular{ll}{                                                                                         
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         \emph{$DatesR  }          \tab [POSIXlt] series of dates                                                     \cr
         \emph{$PotEvap }          \tab [numeric] series of input potential evapotranspiration [mm/d]                 \cr
         \emph{$Precip  }          \tab [numeric] series of input total precipitation [mm/d]                          \cr
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         \emph{$Prod    }          \tab [numeric] series of production store level [mm]                        \cr
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         \emph{$Pn      }          \tab [numeric] series of net rainfall [mm/d]                         			  \cr
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         \emph{$Ps      }          \tab [numeric] series of the part of Pn filling the production store [mm/d]        \cr
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         \emph{$AE      }          \tab [numeric] series of actual evapotranspiration [mm/d]                          \cr
         \emph{$Perc    }          \tab [numeric] series of percolation (PERC) [mm/d]                                 \cr
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         \emph{$PR      }          \tab [numeric] series of PR=Pn-Ps+Perc [mm/d]                                      \cr
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         \emph{$Q9      }          \tab [numeric] series of UH1 outflow (Q9) [mm/d]                                   \cr
         \emph{$Q1      }          \tab [numeric] series of UH2 outflow (Q1) [mm/d]                                   \cr
         \emph{$Rout    }          \tab [numeric] series of routing store level [mm]                           \cr
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         \emph{$Exch    }          \tab [numeric] series of potential semi-exchange between catchments [mm/d]         \cr
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         \emph{$AExch1  }          \tab [numeric] series of actual exchange between catchments for branch 1 [mm/d]    \cr
         \emph{$AExch2  }          \tab [numeric] series of actual exchange between catchments for branch 2 [mm/d]    \cr
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         \emph{$AExch   }          \tab [numeric] series of actual exchange between catchments (1+2) [mm/d]           \cr
         \emph{$QR      }          \tab [numeric] series of routing store outflow (QR) [mm/d]                         \cr
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         \emph{$QD      }          \tab [numeric] series of direct flow from UH2 after exchange (QD) [mm/d]           \cr
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         \emph{$Qsim    }          \tab [numeric] series of simulated discharge [mm/d]                                               \cr
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         \emph{$CemaNeigeLayers}   \tab [list] list of CemaNeige outputs (1 list per layer)                          \cr
         \emph{$CemaNeigeLayers[[iLayer]]$Pliq         }   \tab [numeric] series of liquid precip. [mm/d]                          \cr
         \emph{$CemaNeigeLayers[[iLayer]]$Psol         }   \tab [numeric] series of solid precip. [mm/d]                           \cr
         \emph{$CemaNeigeLayers[[iLayer]]$SnowPack     }   \tab [numeric] series of snow pack [mm]                                 \cr
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         \emph{$CemaNeigeLayers[[iLayer]]$ThermalState }   \tab [numeric] series of snow pack thermal state [°C]                 \cr
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         \emph{$CemaNeigeLayers[[iLayer]]$Gratio       }   \tab [numeric] series of Gratio [0-1]                                   \cr
         \emph{$CemaNeigeLayers[[iLayer]]$PotMelt      }   \tab [numeric] series of potential snow melt [mm/d]                     \cr
         \emph{$CemaNeigeLayers[[iLayer]]$Melt         }   \tab [numeric] series of actual snow melt [mm/d]                        \cr
         \emph{$CemaNeigeLayers[[iLayer]]$PliqAndMelt  }   \tab [numeric] series of liquid precip. + actual snow melt [mm/d]       \cr
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         \emph{$CemaNeigeLayers[[iLayer]]$Temp         }   \tab [numeric] series of air temperature [°C] \cr     
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         \emph{$StateEnd}                                  \tab [numeric] states at the end of the run: \cr\tab store & unit hydrographs levels [mm], CemaNeige states [mm & °C], \cr\tab see \code{\link{CreateIniStates}} for more details \cr
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         }                                                                                                     
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         (refer to the provided references or to the package source code for further details on these model outputs)
}
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\description{
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Function which performs a single run for the CemaNeige-GR4J daily lumped model over the test period.
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}
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\details{
For further details on the model, see the references section.
For further details on the argument structures and initialisation options, see \code{\link{CreateRunOptions}}.
}
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\examples{
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library(airGR)
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## loading catchment data
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data(L0123002)

## preparation of the InputsModel object
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InputsModel <- CreateInputsModel(FUN_MOD = RunModel_CemaNeigeGR4J, DatesR = BasinObs$DatesR, 
                                 Precip = BasinObs$P, PotEvap = BasinObs$E, TempMean = BasinObs$T, 
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                                 ZInputs = median(BasinInfo$HypsoData),
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                                 HypsoData = BasinInfo$HypsoData, NLayers = 5)
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## run period selection
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Ind_Run <- seq(which(format(BasinObs$DatesR, format = "\%d/\%m/\%Y")=="01/01/1990"), 
               which(format(BasinObs$DatesR, format = "\%d/\%m/\%Y")=="31/12/1999"))
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## preparation of the RunOptions object
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RunOptions <- CreateRunOptions(FUN_MOD = RunModel_CemaNeigeGR4J, InputsModel = InputsModel, 
                               IndPeriod_Run = Ind_Run)
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## simulation
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Param <- c(408.774, 2.646, 131.264, 1.174, 0.962, 2.249)
OutputsModel <- RunModel_CemaNeigeGR4J(InputsModel = InputsModel,
                                       RunOptions = RunOptions, Param = Param)
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## results preview
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plot(OutputsModel, Qobs = BasinObs$Qmm[Ind_Run])
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## efficiency criterion: Nash-Sutcliffe Efficiency
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InputsCrit  <- CreateInputsCrit(FUN_CRIT = ErrorCrit_NSE, InputsModel = InputsModel, 
                                RunOptions = RunOptions, Qobs = BasinObs$Qmm[Ind_Run])
OutputsCrit <- ErrorCrit_NSE(InputsCrit = InputsCrit, OutputsModel = OutputsModel)
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}
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\author{
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Laurent Coron, Audrey Valéry, Claude Michel, Charles Perrin, Vazken Andréassian
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}
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\references{
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Perrin, C., C. Michel and V. Andréassian (2003), 
      Improvement of a parsimonious model for streamflow simulation, 
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      Journal of Hydrology, 279(1-4), 275-289, doi:10.1016/S0022-1694(03)00225-7. \cr
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  Valéry, A., V. Andréassian and C. Perrin (2014), 
      "As simple as possible but not simpler": what is useful in a temperature-based snow-accounting routine? 
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      Part 1 - Comparison of six snow accounting routines on 380 catchments, Journal of Hydrology, doi:10.1016/j.jhydrol.2014.04.059. \cr
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  Valéry, A., V. Andréassian and C. Perrin (2014), 
      "As simple as possible but not simpler": What is useful in a temperature-based snow-accounting routine? 
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      Part 2 - Sensitivity analysis of the Cemaneige snow accounting routine on 380 catchments, Journal of Hydrology, doi:10.1016/j.jhydrol.2014.04.058.
}
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\seealso{
\code{\link{RunModel_CemaNeigeGR5J}}, \code{\link{RunModel_CemaNeigeGR6J}}, \code{\link{RunModel_GR4J}},
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         \code{\link{CreateInputsModel}}, \code{\link{CreateRunOptions}}, \code{\link{CreateIniStates}}.
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}