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

Properties

Properties of the parameter sea_​surface_​wave_​mean_​period_​from_​variance_​spectral_​density_​first_​frequency_​moment
Name sea_surface_wave_mean_period_from_variance_spectral_density_first_frequency_moment
Description The 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 has the standard name sea_surface_wave_directional_variance_spectral_density. S can be integrated over direction to give S1= integral(S dtheta) and this quantity has the standard name sea_surface_wave_variance_spectral_density. 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 first wave period, T(m1) is calculated as the ratio M(0)/M(1).
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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