[CF-metadata] New standard name requests for TSI and SSI

alison.pamment at stfc.ac.uk alison.pamment at stfc.ac.uk
Tue Jun 16 07:07:25 MDT 2015


Dear All,

More than seven days have passed without any further comment in this thread. Philip's comments are the most recent and he has indicated that the compromise of using 'irradiance' is acceptable, even though 'flux' would be preferable for consistency.

I think, therefore, that this discussion can be regarded as having reached (almost) consensus and the following names are now accepted for inclusion in the standard name table:

solar_irradiance (W m-2)
'The quantity with standard name solar_irradiance, often called Total Solar Irradiance (TSI), is radiation from the sun integrated over the whole electromagnetic spectrum and over the entire solar disk. The quantity applies outside the atmosphere, by default at a distance of one astronomical unit from the Sun, but a coordinate or scalar coordinate variable of distance_from_sun can be used to specify a value other than the default. "Irradiance" means the power per unit area (called radiative flux in other standard names), the area being normal to the direction of flow of the radiant energy.'

solar_irradiance_per_unit_wavelength (W m-2 m-1)
'The quantity with standard name solar_irradiance_per_unit_wavelength, often called Solar Spectral Irradiance (SSI), is the radiation from the sun as a function of wavelength integrated over the entire solar disk. A coordinate variable for radiation wavelength should be given the standard name radiation_wavelength. The quantity applies outside the atmosphere, by default at a distance of one astronomical unit from the Sun, but a coordinate or scalar coordinate variable of distance_from_sun can be used to specify a value other than the default. "Irradiance" means the power per unit area (called radiative flux in other standard names), the area being normal to the direction of flow of the radiant energy. '

distance_from_sun (m)
The distance from the sun to the point of observation.

The current status of these names can also be viewed at: http://cfeditor.ceda.ac.uk/proposals/1?status=active&namefilter=&proposerfilter=Coddington+Gregory&descfilter=&unitfilter=&yearfilter=&filter+and+display=Filter.

Best wishes,
Alison

------
Alison Pamment                                 Tel: +44 1235 778065
Centre for Environmental Data Analysis         Email: alison.pamment at stfc.ac.uk
STFC Rutherford Appleton Laboratory     
R25, 2.22
Harwell Oxford, Didcot, OX11 0QX, U.K.






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