Model results for filter 28CP0197_2
Output date&time dd-mm-yyyy H:M:S : 29-09-2018 13:19:06

X:  227398.02
Y:  485957.95
Surface level (m above datum):      15.26
Screen top (m above datum):     -14.80
Screen bottom (m above datum):     -15.80
Maximum head measurement frequency:   1.00
Mean of observed groundwater head:   8.41
Median of observed groundwater head:       8.52
Modeling time step (days):   1.00

Goodness of fit
Explained variance deterministic (%):      96.91
Explained variance stochastic (%):      99.47
Sum squared residuals (m2):       2.46
Ndata:    354
RMSE=root mean square error of residuals (m): 0.08
Nparameters:        8
Relative Akaike Information Criterium:     335.01
Sum squared innovations (m2):       0.42

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): 0.0066
PREC: 672_PREC_Hellendoorn_19510101_20160731
IR type: incomplete Gamma function
Average stress intensity (in stress unit): 0.0022
Average partial response (m): 0.1390
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,      823.25
Average stress intensity (stress quantity per time step): 14049.8709
Average partial response (m): -0.0289

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):       7.14

Optimized parameters
A_PIII_PREC: 2.193e+03 stdev:6.873e+01   95% conf.int.: [2.077e+03,2.309e+03]
a_PIII_PREC: 2.263e-03 stdev:8.054e-05   95% conf.int.: [2.129e-03,2.407e-03]
n_PIII_PREC: 1.513e+00 stdev:1.496e-02   95% conf.int.: [1.489e+00,1.538e+00]
f_factor_EVAP: 5.428e-01 stdev:1.694e-02   95% conf.int.: [5.149e-01,5.714e-01]
A_PIII_WELL: 1.390e-04 stdev:3.312e-06   95% conf.int.: [1.340e-04,1.442e-04]
a_PIII_WELL: 1.170e-03 stdev:1.488e-04   95% conf.int.: [9.786e-04,1.443e-03]
n_PIII_WELL: 9.825e-01 stdev:7.270e-02   95% conf.int.: [8.642e-01,1.107e+00]
alfa_EXP_NOISE: 2.713e-02 stdev:2.529e-03   95% conf.int.: [2.345e-02,3.171e-02]

Correlation matrix:
              ,   A_PIII_PREC,   a_PIII_PREC,   n_PIII_PREC, f_factor_EVAP,   A_PIII_WELL,   a_PIII_WELL,   n_PIII_WELL,alfa_EXP_NOISE
   A_PIII_PREC,          1.00,         -0.98,         -0.87,          0.10,         -0.53,          0.58,          0.42,          0.31
   a_PIII_PREC,              ,          1.00,          0.92,         -0.15,          0.55,         -0.62,         -0.47,         -0.32
   n_PIII_PREC,              ,              ,          1.00,         -0.04,          0.50,         -0.61,         -0.52,         -0.36
 f_factor_EVAP,              ,              ,              ,          1.00,         -0.41,          0.23,          0.14,         -0.08
   A_PIII_WELL,              ,              ,              ,              ,          1.00,         -0.88,         -0.78,         -0.27
   a_PIII_WELL,              ,              ,              ,              ,              ,          1.00,          0.95,          0.35
   n_PIII_WELL,              ,              ,              ,              ,              ,              ,          1.00,          0.34
alfa_EXP_NOISE,              ,              ,              ,              ,              ,              ,              ,          1.00

Covariance matrix:
              ,   A_PIII_PREC,   a_PIII_PREC,   n_PIII_PREC, f_factor_EVAP,   A_PIII_WELL,   a_PIII_WELL,   n_PIII_WELL,alfa_EXP_NOISE
   A_PIII_PREC,        0.0010,       -0.0011,       -0.0003,        0.0001,       -0.0004,        0.0023,        0.0010,        0.0009
   a_PIII_PREC,              ,        0.0013,        0.0003,       -0.0002,        0.0005,       -0.0028,       -0.0012,       -0.0011
   n_PIII_PREC,              ,              ,        0.0001,       -0.0000,        0.0001,       -0.0008,       -0.0004,       -0.0003
 f_factor_EVAP,              ,              ,              ,        0.0010,       -0.0003,        0.0009,        0.0003,       -0.0002
   A_PIII_WELL,              ,              ,              ,              ,        0.0006,       -0.0027,       -0.0014,       -0.0006
   a_PIII_WELL,              ,              ,              ,              ,              ,        0.0162,        0.0090,        0.0042
   n_PIII_WELL,              ,              ,              ,              ,              ,              ,        0.0055,        0.0024
alfa_EXP_NOISE,              ,              ,              ,              ,              ,              ,              ,        0.0087

Groundwater recharge
Mean recharge rate (m/year): 0.515 stdev:0.007 95% conf.int.: [0.501,0.531]
Mean transpiration rate (m/year): 0.299 stdev:0.007 95% conf.int.: [0.284,0.313]
Evaluation period: 1-1-1982 to 29-12-1995

