Model results for filter 28AP0093_1
Output date&time dd-mm-yyyy H:M:S : 29-09-2018 21:43:33

X:  224550.34
Y:  488100.53
Surface level (m above datum):      11.60
Screen top (m above datum):       2.60
Screen bottom (m above datum):       1.60
Maximum head measurement frequency:   1.00
Mean of observed groundwater head:   9.24
Median of observed groundwater head:       9.24
Modeling time step (days):   1.00

Goodness of fit
Explained variance deterministic (%):      94.70
Explained variance stochastic (%):      97.11
Sum squared residuals (m2):       3.88
Ndata:    352
RMSE=root mean square error of residuals (m): 0.10
Nparameters:        5
Relative Akaike Information Criterium:     486.89
Sum squared innovations (m2):       2.12

Explaining time series
EVAP: 260_De_Bilt_EVAP_19010101_20131015
IR type: incomplete Gamma function, parameters shared with PREC
Average stress intensity (in stress unit): 0.0015
Average partial response (m): 0.0017
PREC: 672_PREC_Hellendoorn_19510101_20160731
IR type: incomplete Gamma function
Average stress intensity (in stress unit): 0.0022
Average partial response (m): 0.1222

Noise model
Noise model type:exp decay

Drainage base
Evaluatiom methode: as difference between measured head and modelled fluctuations
Drainage base level (in m above datum):       7.76

Optimized parameters
A_PIII_PREC: 1.623e+03 stdev:3.547e+01   95% conf.int.: [1.568e+03,1.683e+03]
a_PIII_PREC: 2.184e-03 stdev:8.269e-05   95% conf.int.: [2.052e-03,2.324e-03]
n_PIII_PREC: 1.072e+00 stdev:1.221e-02   95% conf.int.: [1.052e+00,1.093e+00]
f_factor_EVAP: 9.276e-01 stdev:2.720e-02   95% conf.int.: [8.844e-01,9.741e-01]
alfa_EXP_NOISE: 7.064e-02 stdev:7.733e-03   95% conf.int.: [5.941e-02,8.520e-02]

Correlation matrix:
              ,   A_PIII_PREC,   a_PIII_PREC,   n_PIII_PREC, f_factor_EVAP,alfa_EXP_NOISE
   A_PIII_PREC,          1.00,         -0.83,         -0.54,         -0.13,          0.01
   a_PIII_PREC,              ,          1.00,          0.80,         -0.13,         -0.09
   n_PIII_PREC,              ,              ,          1.00,          0.10,         -0.15
 f_factor_EVAP,              ,              ,              ,          1.00,          0.06
alfa_EXP_NOISE,              ,              ,              ,              ,          1.00

Covariance matrix:
              ,   A_PIII_PREC,   a_PIII_PREC,   n_PIII_PREC, f_factor_EVAP,alfa_EXP_NOISE
   A_PIII_PREC,        0.0005,       -0.0007,       -0.0001,       -0.0001,        0.0000
   a_PIII_PREC,              ,        0.0014,        0.0003,       -0.0001,       -0.0004
   n_PIII_PREC,              ,              ,        0.0001,        0.0000,       -0.0002
 f_factor_EVAP,              ,              ,              ,        0.0009,        0.0002
alfa_EXP_NOISE,              ,              ,              ,              ,        0.0120

Groundwater recharge
Mean recharge rate (m/year): 0.306 stdev:0.012 95% conf.int.: [0.282,0.332]
Mean transpiration rate (m/year): 0.508 stdev:0.012 95% conf.int.: [0.482,0.532]
Evaluation period: 1-1-1982 to 29-12-1995

