Dear All,

The standard name table has been updated. The current version is now version 
65, dated 9th April 2019. The changes have also been published on the NERC 
Vocabulary Server. All changes are listed at the end of this message.

Dan Say has been added to the list of standard name contributors: 
http://cfconventions.org/Data/cf-standard-names/docs/standard-name-contributors.html.
 Katherine Pugsley and Ranjini Swaminathan have also been added for their 
contributions to version 64 of the table.

The next update to standard names is planned for 14th May.

Best wishes,
Alison

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V65 standard name changes

1. New names

Several sets of halocarbon and other trace gas names, proposed by Dan Say:
mole_fraction_of_chloroform_in_air (Canonical unit: 1)
mole_fraction_of_dichloromethane_in_air (Canonical unit: 1)
mole_fraction_of_hcfc124_in_air (Canonical unit: 1)
mole_fraction_of_hfc125_in_air (Canonical unit: 1)
mole_fraction_of_hfc134a_in_air (Canonical unit: 1)
mole_fraction_of_hfc143a_in_air (Canonical unit: 1)
mole_fraction_of_hfc152a_in_air (Canonical unit: 1)
mole_fraction_of_hfc227ea_in_air (Canonical unit: 1)
mole_fraction_of_hfc236fa_in_air (Canonical unit: 1)
mole_fraction_of_hfc23_in_air (Canonical unit: 1)
mole_fraction_of_hfc245fa_in_air (Canonical unit: 1)
mole_fraction_of_hfc32_in_air (Canonical unit: 1)
mole_fraction_of_hfc365mfc_in_air (Canonical unit: 1)
mole_fraction_of_hfc4310mee_in_air (Canonical unit: 1)
mole_fraction_of_nitrogen_trifluoride_in_air (Canonical unit: 1)
mole_fraction_of_perchloroethene_in_air (Canonical unit: 1)
mole_fraction_of_pfc116_in_air (Canonical unit: 1)
mole_fraction_of_pfc218_in_air (Canonical unit: 1)
mole_fraction_of_pfc318_in_air (Canonical unit: 1)
mole_fraction_of_sulfuryl_fluoride_in_air (Canonical unit: 1)

2. New aliases

No new aliases were added in this update.

3. Modifications to definitions of existing names

Arising from the discussion of Dan Say's proposals, the definitions of the 
following names were updated to include the IUPAC name, tetrachloromethane:
atmosphere_mass_content_of_carbon_tetrachloride
atmosphere_moles_of_carbon_tetrachloride
mass_concentration_of_carbon_tetrachloride_in_air
mass_fraction_of_carbon_tetrachloride_in_air
mole_concentration_of_carbon_tetrachloride_in_air
mole_fraction_of_carbon_tetrachloride_in_air
tendency_of_atmosphere_mass_content_of_carbon_tetrachloride_due_to_emission

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

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