Dear Roy,
Do you mean that the total ozone values should be given in moles per
square metre in the NetCDF files themselves? Or do you mean that I
should simply add a specific comment in the unit parameter attribute to
make clear that the values are provided in Dobson Unit?
The Dobson Unit is quite common for total ozone users and I'd prefer to
stay with this unit if possible.
Cheers,
Christophe
On 3/12/2012 15:39, Lowry, Roy K. wrote:
> Hello Alison,
>
> Surely the canonical unit for Dobson Units would be moles per square metre, with Dobson Units appearing as the scaled unit in the units parameter attribute. Making Dobson Units the canonical unit would be like having cm/s rather than m/s as a canonical unit.
>
> Cheers, Roy.
> ________________________________________
> From: CF-metadata [cf-metadata-bounces at cgd.ucar.edu] On Behalf Of alison.pamment at stfc.ac.uk [alison.pamment at stfc.ac.uk]
> Sent: 03 December 2012 14:18
> To: cf-metadata at cgd.ucar.edu
> Subject: Re: [CF-metadata] new standard name proposal for total ozone in DU
>
> Dear Christophe and Jonathan,
>
> I also support this proposal. We don't currently have any standard names that use Dobson Units - I think UDUnits1 didn't support it. However, since it is defined in UDunits2 I don't see any problem with adding it.
>
> Best wishes,
> Alison
>
> ------
> Alison Pamment Tel: +44 1235 778065
> NCAS/British Atmospheric Data Centre Email: alison.pamment at stfc.ac.uk
> STFC Rutherford Appleton Laboratory
> R25, 2.22
> Harwell Oxford, Didcot, OX11 0QX, U.K.
>
>
>
>> -----Original Message-----
>> From: CF-metadata [mailto:cf-metadata-bounces at cgd.ucar.edu] On Behalf
>> Of Jonathan Gregory
>> Sent: 27 November 2012 20:52
>> To: cf-metadata at cgd.ucar.edu
>> Subject: [CF-metadata] new standard name proposal for total ozone in DU
>>
>> Dear Christophe
>>
>>> So I'd like to propose the following variable name for total ozone
>>> columns based on recommendations I was given:
>>> - "atmosphere_mole_content_of_ozone" expressed in Dobson Units.
>>> Dobson Unit (DU) is already defined in the UDUNIT package ans is
>>> equivalent to 446.2 micromoles m-2.
>> This seems fine to me. It is consistent in construction with existing
>> names
>> for a quantity in mol m-2.
>>
>> Best wishes
>>
>> Jonathan
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--
-----------------------------------------------------
Dr. Christophe LEROT
Belgian Institute for Space Aeronomy
Chemistry & Physics of Atmospheres
Avenue circulaire, 3
1180 Brussels
Belgium
phone: +32/(0)2-3730-407
mobile: +32/(0)472-81.87.00
mail: christophe.lerot at aeronomie.be
url: http://uv-vis.aeronomie.be/
-----------------------------------------------------
Received on Tue Dec 04 2012 - 03:20:56 GMT
