Model results for filter 28CP0204_1
Output date&time dd-mm-yyyy H:M:S : 29-09-2018 13:29:19

X:  226893.67
Y:  485364.37
Surface level (m above datum):      21.26
Screen top (m above datum):       3.33
Screen bottom (m above datum):       2.33
Maximum head measurement frequency:   1.00
Mean of observed groundwater head:   9.50
Median of observed groundwater head:       9.59
Modeling time step (days):   1.00

Goodness of fit
Explained variance deterministic (%):      96.88
Explained variance stochastic (%):      99.59
Sum squared residuals (m2):       2.74
Ndata:    354
RMSE=root mean square error of residuals (m): 0.09
Nparameters:        8
Relative Akaike Information Criterium:     373.25
Sum squared innovations (m2):       0.36

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): 0.0084
PREC: 672_PREC_Hellendoorn_19510101_20160731
IR type: incomplete Gamma function
Average stress intensity (in stress unit): 0.0022
Average partial response (m): 0.1449
WELL: total_extracted_volumes_Nijverdal
IR type: incomplete Gamma function
                               Well name,    Xcoord,    Ycoord,  Top screen,Bottom screen,    distance
       total_extracted_volumes_Nijverdal, 226683.50, 486366.85,        0.00,        0.00,     1024.27
Average stress intensity (stress quantity per time step): 14049.8709
Average partial response (m): -0.0117

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):       8.47

Optimized parameters
A_PIII_PREC: 2.175e+03 stdev:3.294e+01   95% conf.int.: [2.123e+03,2.226e+03]
a_PIII_PREC: 3.294e-03 stdev:3.295e-05   95% conf.int.: [3.245e-03,3.349e-03]
A_PIII_WELL: 1.123e-04 stdev:1.472e-05   95% conf.int.: [9.060e-05,1.397e-04]
a_PIII_WELL: 9.618e-04 stdev:2.386e-04   95% conf.int.: [6.474e-04,1.420e-03]
n_PIII_WELL: 1.324e+00 stdev:1.377e-01   95% conf.int.: [1.115e+00,1.585e+00]
alfa_EXP_NOISE: 2.577e-02 stdev:2.045e-03   95% conf.int.: [2.265e-02,2.955e-02]

Correlation matrix:
              ,   A_PIII_PREC,   a_PIII_PREC,   A_PIII_WELL,   a_PIII_WELL,   n_PIII_WELL,alfa_EXP_NOISE
   A_PIII_PREC,          1.00,         -0.97,         -0.08,          0.04,         -0.05,          0.10
   a_PIII_PREC,              ,          1.00,          0.11,         -0.07,          0.02,         -0.13
   A_PIII_WELL,              ,              ,          1.00,         -0.99,         -0.97,         -0.25
   a_PIII_WELL,              ,              ,              ,          1.00,          0.98,          0.24
   n_PIII_WELL,              ,              ,              ,              ,          1.00,          0.23
alfa_EXP_NOISE,              ,              ,              ,              ,              ,          1.00

Covariance matrix:
              ,   A_PIII_PREC,   a_PIII_PREC,   A_PIII_WELL,   a_PIII_WELL,   n_PIII_WELL,alfa_EXP_NOISE
   A_PIII_PREC,        0.0002,       -0.0001,       -0.0002,        0.0001,       -0.0001,        0.0001
   a_PIII_PREC,              ,        0.0001,        0.0001,       -0.0002,        0.0000,       -0.0001
   A_PIII_WELL,              ,              ,        0.0172,       -0.0323,       -0.0132,       -0.0026
   a_PIII_WELL,              ,              ,              ,        0.0615,        0.0254,        0.0048
   n_PIII_WELL,              ,              ,              ,              ,        0.0108,        0.0019
alfa_EXP_NOISE,              ,              ,              ,              ,              ,        0.0063

Derived parameters from harmonic component
n_PIII_PREC: 2.018e+00 stdev:4.824e-03 95% conf.int.: [2.009e+00,2.030e+00]
f_factor_EVAP: 7.272e-01 stdev:6.841e-03 95% conf.int.: [7.168e-01,7.452e-01]

Groundwater recharge
Mean recharge rate (m/year): 0.416 stdev:0.004 95% conf.int.: [0.406,0.421]
Mean interception+transpiration rate (m/year): 0.398 stdev:0.004 95% conf.int.: [0.393,0.408]
Evaluation period: 1-1-1982 to 29-12-1995

