Regarding the initial conditions in SAC-SMA in hydromad

[Guniganti Surya Kiran]

Dear all, 

              I am working on applying the lumped mode of SAC-SMA model using hydromad. I wanted to give the model with initial conditions into the model (some value of initial parameters). This is not found when I searched for it. So please let me know if there any way to give the initial parameters for calibration of SAC-SMA model.

With regards

G Surya Kiran

[Mehnaz Akhter]

datC<-
  cbind(
    P = c(P_E$P),
    Q=as.numeric(Qtrue),
    E = c(P_E$E))
datCz1 <- zoo(datC, as.Date("2010-12-31") + 1:nrow(datC))

# split the data to use for calibration
Data_Cal1<- window(datCz1, start = "2011-01-01",end = "2017-12-31")

#defining the parameter ranges in the object
modCz1 <- hydromad(Data_Cal1,
                   sma="sacramento", uztwm=c(1.0,150.0), uzfwm=c(1.0,150.0), uzk=c(0.1,0.5),
                   pctim=c(0.0,0.1),adimp=c(0.0,0.40), zperc=c(1.0,250.0), rexp=c(0.0,5.0),
                   lztwm=c(1.0,500.0), lzfsm=c(1.0,1000), lzfpm=c(1.0,1000), lzsk=c(0.01,0.25),
                   lzpk=c(0.0001,0.025),
                   pfree=c(0.0,0.6))