Program Decomp v.15, calculation of reflection
11-Jun-2017 12:43:03

*************Input values******************
Input file: 1118556.ASC
Time step in input file:       0.0100 s


Time interval asked:                      420.0000,    -1.0000
Time interval used:                       420.0000,  2169.5900
Time step used:                             0.0100 s

Number of samples used:                   174960

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):      0.56      0.56      0.56

Depth profile:

x_pos (m):            0.00      0.29      0.67      1.20
waterdepth (m):       0.56      0.56      0.56      0.56
*********************************************

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:         0.00057 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:
                          0.320,     1.570 Hz
Frequency range of ideal Jonswap spectrum of Tp =   1.78 s
  and thresh     0.0050 x max(E):
                          0.350,     1.640 Hz


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

moments of time signal and of var. density spectrum at wave gauges:
                                          ch2        ch3        ch4     
mean (m):                                 -0.0108     -0.0035     -0.0229  
var (m^2):                             1.0231e-03  9.1875e-04  7.3580e-04  
Hm0 (m)                                   0.12794     0.12124     0.10850  


*********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:        0.3204 -   1.5704 Hz
                                          ch2        ch3        ch4     
m0 (m^2)                               9.9950e-04  8.9507e-04  7.1251e-04  
m2 (m^2/s^2)                           4.5333e-04  4.1762e-04  3.4429e-04  
m4 (m^2/s^4)                           3.2023e-04  3.0121e-04  2.6413e-04  

--- Peak Information from averaged spectra ---
                                          ch2        ch3        ch4     
   threshold 80% fpD (Hz):                0.5541     0.5554     0.5552 
   threshold 80% TpD (s):                 1.8049     1.8005     1.8010 

Max spectral density (m^2/Hz):         7.3279e-03 5.5967e-03 2.6228e-03 
within frequency range
                   fpmin (Hz):             0.5312     0.5626     0.5626 
                   fpmax (Hz):             0.5468     0.5782     0.5782 
within periods
                    Tpmin (s):             1.8288     1.7294     1.7294 
                    Tpmax (s):             1.8826     1.7775     1.7775 

-----------derivated PERIOD values------------
Average zerocrossing period T0,1 (s)       1.5536      1.5328      1.5149  
                            T0,2 (s)       1.4849      1.4640      1.4386  
Average period local maxima T2,4 (s)       1.1898      1.1775      1.1417  
Narrowness Parameter Eps2                  0.3078      0.3102      0.3300  
Broadness Factor Eps4                      0.5983      0.5942      0.6084  
kappa                                      0.6014      0.5683      0.4882  
gamma                                      0.4762      0.4370      0.3447  
Hm0                                       0.12646     0.11967     0.10677  


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

frequency range used in calculation of reflection:
                        0.3204 -   1.5704 Hz

--- Peak Information from averaged spectra ---
   threshold 80% fpD (Hz):                0.5459 
   threshold 80% TpD (s):                 1.8320 

Max spectral density (m^2/Hz):         4.9550e-03 
within frequency range
                   fpmin (Hz):             0.5312 
                   fpmax (Hz):             0.5468 
within periods
                    Tpmin (s):             1.8288 
                    Tpmax (s):             1.8826 


Sum of variance densities:
  over spectrum part used in graphs (10% more than used in calc. of moments)
Incident (m^2):  8.3882e-04
Reflected (m^2): 7.3370e-05


Moments of incident and reflected wave

m0 of incident wave:   8.3660e-04 m^2
m0 of reflected wave:  7.1994e-05 m^2
Hm0 of incident wave:   0.11570 m
Hm0 of reflected wave:  0.03394 m

Reflection coefficient:   0.2934