Program Decomp v.15, calculation of reflection
11-Jun-2017 12:34:24

*************Input values******************
Input file: 1421264.ASC
Time step in input file:       0.0100 s


Time interval asked:                      420.0000,    -1.0000
Time interval used:                       420.0000,  1743.3500
Time step used:                             0.0100 s

Number of samples used:                   132336

Channels used:

cols:                   2         3         4
pos (m):             0.00      0.29      0.67
scale to m:        0.0250    0.0250    0.0250
waterdepth (m):      0.64      0.64      0.64

Depth profile:

x_pos (m):            0.00      0.29      0.67      1.20
waterdepth (m):       0.64      0.64      0.64      0.64
*********************************************

Program Decomp15, calculation of reflection
*****************Method********************
Spectra calculated as sum over frequency bands
Kr from Er/Ei; m0i and m0r from Ei en Er;
Hm0i and Hm0r from m0i en m0r

Frequency step:         0.00076 Hz
Threshold used to calculate TpD and spectral moments
                         0.0050 x max(E)
Frequency resolution in average spectrum
                          0.016 Hz
Default frequency range defined by FN_freqs:
                          0.000,     2.500 Hz
Frequency range according to threshold in spectrum of data file:
                          0.274,     1.492 Hz
Frequency range of ideal Jonswap spectrum of Tp =   2.28 s
  and thresh     0.0050 x max(E):
                          0.270,     1.280 Hz


*********Values calculated fom time signal********

moments of time signal and of var. density spectrum at wave gauges:
                                          ch2        ch3        ch4     
mean (m):                                  0.1530      0.1550      0.1374  
var (m^2):                             1.4334e-03  1.4636e-03  1.4245e-03  
Hm0 (m)                                   0.15144     0.15303     0.15097  


*********Values calculated fom spectra*********

----moments from spectra in region where equations are valid
density >= 0.0050 x max(E) ---

frequency range used in calculation of moments of 
individual wave gauges:        0.2735 -   1.4924 Hz
                                          ch2        ch3        ch4     
m0 (m^2)                               1.3922e-03  1.4210e-03  1.3906e-03  
m2 (m^2/s^2)                           5.1600e-04  5.2069e-04  4.8591e-04  
m4 (m^2/s^4)                           3.1483e-04  3.2337e-04  2.9282e-04  

--- Peak Information from averaged spectra ---
                                          ch2        ch3        ch4     
   threshold 80% fpD (Hz):                0.5078     0.4680     0.4534 
   threshold 80% TpD (s):                 1.9691     2.1369     2.2055 

Max spectral density (m^2/Hz):         7.5361e-03 5.1779e-03 7.9938e-03 
within frequency range
                   fpmin (Hz):             0.5000     0.4063     0.4531 
                   fpmax (Hz):             0.5156     0.4219     0.4688 
within periods
                    Tpmin (s):             1.9394     2.3702     2.1333 
                    Tpmax (s):             2.0001     2.4613     2.2068 

-----------derivated PERIOD values------------
Average zerocrossing period T0,1 (s)       1.7332      1.7506      1.7938  
                            T0,2 (s)       1.6426      1.6520      1.6917  
Average period local maxima T2,4 (s)       1.2802      1.2689      1.2882  
Narrowness Parameter Eps2                  0.3368      0.3508      0.3526  
Broadness Factor Eps4                      0.6265      0.6403      0.6482  
kappa                                      0.4992      0.4622      0.4944  
gamma                                      0.3553      0.3162      0.3540  
Hm0                                       0.14925     0.15078     0.14916  


*********Calculation of reflection*********

frequency range used in calculation of reflection:
                        0.2735 -   1.4924 Hz

--- Peak Information from averaged spectra ---
   threshold 80% fpD (Hz):                0.4839 
   threshold 80% TpD (s):                 2.0663 

Max spectral density (m^2/Hz):         8.0531e-03 
within frequency range
                   fpmin (Hz):             0.4845 
                   fpmax (Hz):             0.5001 
within periods
                    Tpmin (s):             1.9995 
                    Tpmax (s):             2.0640 


Sum of variance densities:
  over spectrum part used in graphs (10% more than used in calc. of moments)
Incident (m^2):  1.3895e-03
Reflected (m^2): 1.4706e-04


Moments of incident and reflected wave

m0 of incident wave:   1.3852e-03 m^2
m0 of reflected wave:  1.4513e-04 m^2
Hm0 of incident wave:   0.14887 m
Hm0 of reflected wave:  0.04819 m

Reflection coefficient:   0.3237