[CF-metadata] RE: agreed standard names

Pepe S. D. Juevara sdj at tiscali.it
Fri Nov 4 03:46:45 MST 2005


Dear Jonathan,

First of all please let me apologise for not getting back to you and the
rest of the list in a more timely manner.

In reference to the consolidated list you have proposed I [unfortunately]
have some further comments on the following standard names:

Kd - Diffuse Attenuation Coefficient
volume_attenuation_coefficient_of_downwelling_irradiance_in_sea_water:m-1
This is important since Kd is a measure of 'irradiance' attenuation and not
of 'radiation'

CDOM - Colour Dissolved Organic Matter
volume_absorption_coefficient_of_radiation_in_sea_water_due_to_coloured_dissolved_organic_matter:m-1
This is important since it is only the 'coloured' component which we are
interested in.

Lr - 
surface[_spectral]_sky_radiance_in_air_reflected_by_sea_water: W m-2 m-1
sr-1
This clarification is important since from your proposed name it seemed that
Lr was a measure of the reflected scattered radiation but Lr is instead a
measure of the reflected sky radiance.

One last question (comment) about units which I am not really sure if it
applies: is the CF policy to use only SI units ? I am asking this since some
quantities are never expressed in SI units. For example:

TSM - Total Suspended Matter: usually expressed in g m-3 and not in kg m-3
concentration_of_suspended_matter_in_sea_water

Lu, Lw and Lr: usually expressed in W m-2 µm-1 sr-1 and not in W m-2 m-1
sr-1
surface_upwelling_spectral_radiance_in_air:
surface_upwelling_spectral_radiance_in_air_emerging_from_sea_water
surface_spectral_sky_radiance_in_air_reflected_by_sea_water

I am sorry if my late comments will postpone the process , but I do believe
that the changes described above will make the standard names more precise,
correct and effective.

Thank you very much for your cooperation.

Best Regards,
Pepe




>-- Messaggio Originale --
>Date: Mon, 31 Oct 2005 09:59:33 +0000
>From: Jonathan Gregory <j.m.gregory at reading.ac.uk>
>To: cf-metadata at cgd.ucar.edu
>Cc: sdj at tiscali.it, Godin at mbari.org, keith.williams at metoffice.gov.uk
>Subject: agreed standard names
>
>
>Dear Mike, Pepe, Keith et al.
>
>Here's a consolidated list of all the recently agreed standard names. I
don't
>think there are any outstanding questions about these except my suggestion
>to
>Mike and Pepe to use the phrases _emerging_from_sea_water and
>_reflected_by_sea_water to distinguish components of
>surface_upwelling[_spectral]_radiance_in_air.
>
>Cheers
>
>Jonathan
>
>aerosol_angstrom_exponent:1
>atmosphere_optical_thickness_due_to_aerosol:1
>bioluminescent_photon_rate_in_sea_water:s-1 m-3
>cloud_area_fraction_in_atmosphere_layer:1
>concentration_of_suspended_matter_in_sea_water:kg m-3
>convective_cloud_area_fraction_in_atmosphere_layer:1
>fractional_saturation_of_oxygen_in_sea_water:1
>height_above_sea_floor:m
>mass_fraction_of_cloud_ice_in_air:1
>mass_fraction_of_cloud_liquid_water_in_air:1
>mass_fraction_of_convective_cloud_ice_in_air:1
>mass_fraction_of_convective_cloud_liquid_water_in_air:1
>mass_fraction_of_stratiform_cloud_ice_in_air:1
>mass_fraction_of_stratiform_cloud_liquid_water_in_air:1
>moles_of_nitrate_and_nitrite_per_unit_mass_in_sea_water:mol kg-1
>moles_of_nitrate_per_unit_mass_in_sea_water:mol kg-1
>moles_of_nitrite_per_unit_mass_in_sea_water:mol kg-1
>moles_of_oxygen_per_unit_mass_in_sea_water:mol kg-1
>moles_of_phosphate_per_unit_mass_in_sea_water:mol kg-1
>moles_of_silicate_per_unit_mass_in_sea_water:mol kg-1
>omnidirectional_photosynthetic_spherical_irradiance_in_sea_water:W m-2 
>omnidirectional_spectral_spherical_irradiance_in_sea_water:W m-3
>optical_thickness_of_atmosphere_layer_due_to_aerosol:1
>platform_course:degree
>platform_orientation:degree
>platform_pitch_angle:degree
>platform_pitch_rate:degree s-1
>platform_roll_angle:degree
>platform_roll_rate:degree s-1
>platform_speed_wrt_air:m s-1
>platform_speed_wrt_ground:m s-1
>platform_speed_wrt_sea_water:m s-1
>platform_yaw_angle:degree
>platform_yaw_rate:degree s-1
>scattering_angle:rad
>speed_of_sound_in_sea_water:m s-1
>stratiform_cloud_area_fraction_in_atmosphere_layer:1
>surface_carbon_dioxide_partial_pressure_difference_between_air_and_sea_water:Pa
>surface_partial_pressure_of_carbon_dioxide_in_air:Pa
>surface_partial_pressure_of_carbon_dioxide_in_sea_water:Pa
>surface_upwelling_radiance_in_air:W m-2 sr-1
>surface_upwelling_radiance_in_air_emerging_from_sea_water:W m-2 sr-1
>surface_upwelling_radiance_in_air_reflected_by_sea_water:W m-2 sr-1
>surface_upwelling_radiance_in_sea_water:W m-2 sr-1
>surface_upwelling_spectral_radiance_in_air:W m-2 m-1 sr-1
>surface_upwelling_spectral_radiance_in_air_emerging_from_sea_water:W m-2
>m-1 sr-1
>surface_upwelling_spectral_radiance_in_air_reflected_by_sea_water:W m-2
m-1
>sr-1
>surface_upwelling_spectral_radiance_in_sea_water:W m-2 m-1 sr-1
>volume_absorption_coefficient_of_radiation_in_sea_water:m-1
>volume_absorption_coefficient_of_radiation_in_sea_water_due_to_dissolved_organic_matter:m-1
>volume_attenuation_coefficient_of_downwelling_radiation_in_sea_water:m-1
>volume_backwards_scattering_coefficient_of_radiation_in_sea_water:m-1
>volume_beam_attenuation_coefficient_of_radiation_in_sea_water:m-1
>volume_mixing_ratio_of_oxygen_at_stp_in_sea_water:1 
>volume_scattering_coefficient_of_radiation_in_sea_water:m-1
>volume_scattering_function_of_radiation_in_sea_water:m-1 sr-1

*************************************************
Pepe S. D. Juevara

- No debe cambiarse de caballo al cruzar el río -
*************************************************

__________________________________________________________________
TISCALI ADSL
Solo con Tiscali Adsl navighi senza limiti e telefoni senza canone 
Telecom a partire da 19,95 Euro/mese.
Attivala subito, I PRIMI DUE MESI SONO GRATIS! CLICCA QUI:
http://abbonati.tiscali.it/adsl/sa/1e25flat_tc/







More information about the CF-metadata mailing list