[CF-metadata] Sea water transparency and reflectance.

From: Jonathan Gregory <j.m.gregory>
Date: Wed, 28 Oct 2009 15:53:05 +0000

Dear Olivier

I think Frederic's suggestion implies the name should be

ratio_of_upwelling_spectral_radiance_emerging_from_sea_water_to_downwelling_spectral_radiative_flux_in_air (sr^-1)

Both numerator and denominator are spectral (units with m-1 for per wavelength
interval) but that cancels out, so the ratio does not have m-1, as you say. But
it does now include the word "spectral" (twice!) as you originally suggested.
Equally it could be argued that spectral should be omitted from the ratio.
Which what you would prefer?

> Concerning the geometry of observation, we could introduce "angle_of_incidence" as suggested by Jonathan, plus probably something like "azimuth_angle"?

What about angle_of_emergence? I assume both angle of incidence and angle of
emergence would be defined wrt the normal to the surface.

Cheers

Jonathan
Received on Wed Oct 28 2009 - 09:53:05 GMT