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Parameter sea_​surface_​wind_​wave_​mean_​period_​from_​variance_​spectral_​density_​second_​frequency_​moment

Properties

Properties of the parameter sea_​surface_​wind_​wave_​mean_​period_​from_​variance_​spectral_​density_​second_​frequency_​moment
Name sea_surface_wind_wave_mean_period_from_variance_spectral_density_second_frequency_moment
Description The wind wave directional spectrum can be written as a five dimensional function S(t,x,y,f,theta) where t is time, x and y are horizontal coordinates (such as longitude and latitude), f is frequency and theta is direction. S can be integrated over direction, thus S1= integral(S dtheta). Frequency moments, M(n) of S1 can then be calculated as follows: M(n) = integral(S1 f^n df), where f^n is f to the power of n. The second wave period, T(m2), is calculated as the square root of the ratio M(0)/M(2).
AMIP code (Library of AMIP Data Transmission Standards) not specified
GRIB code not specified

Source

The parameter was taken from the NetCDF CF Metadata Convention.


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