[CF-metadata] CF-metadata Digest, Vol 60, Issue 3

[Schultz, Martin]

passive ozone

Dear all,


>> Concerning the passivity of passive ozone, I believe that it is absolute. I.e. 
>> it has no feedbacks on the model evolution. If we start listing the feedbacks which it doesn't have we need to 
>> anticipate all feedbacks for true ozone that might be incorporated into the models in the future. Isn't it 
>> simpler to say that there are none?
>>
>> Chemically_passive would be wrong, as it is also radiatively passive.

   Please don't go down this path! Adding all kinds of attributes into the standard_name will lead nowhere! I think it would me much clearer to define additional attributes as for example

feedbacks:"radiation, chemistry, ..." or "none" if it is "absolutely passive".

   As for the standard name the quantity should still be called the same as "ozone". Our model simulations always include some element of simplification and I believe it is more important to recognize that the standard_name variable reflects "something that has a behaviour which in many respects is similar to ozone" than to nail down every detail as to why my ozone is different from yours. 

Best regards,

Martin

< Dr. Martin G. Schultz, ICG-2, Forschungszentrum Jülich  >
< D-52425 Jülich, Germany                                 >
< ph: +49 (0)2461 61 2831, fax: +49 (0)2461 61 8131       >
< email: m.schultz at fz-juelich.de                          >
< web: http://www.fz-juelich.de/icg/icg-2/m_schultz       >



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Forschungszentrum Jülich GmbH
52425 Jülich

Sitz der Gesellschaft: Jülich
Eingetragen im Handelsregister des Amtsgerichts Düren Nr. HR B 3498
Vorsitzende des Aufsichtsrats: MinDir'in Bärbel Brumme-Bothe
Geschäftsführung: Prof. Dr. Achim Bachem (Vorsitzender),
Dr. Ulrich Krafft (stellv. Vorsitzender), Prof. Dr. Harald Bolt,
Dr. Sebastian M. Schmidt
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