Dear Ajay, Roy, All, Thank you for the clarification regarding units.
We are now settled on apparent_oxygen_utilization (mol kg-1). We do already have a couple of ocean biogeochemistry names referring to "nitrate utilization" so I think this new name is in keeping with those. Based on the definition provided by Ajay and John Graybeal's suggested wording, I have currently written the definition as: "Apparent Oxygen Utilization (often abbreviated as AOU) is the difference between the saturation concentration of oxygen in sea water at a pressure of 1 atmosphere (101325 Pa) and the observed oxygen concentration. It is used to estimate the change in oxygen concentration due to biological and chemical processes. Reference: Broecker, W. S. and T. H. Peng (1982), Tracers in the Sea, Lamont-Doherty Earth Observatory, Palisades, N. Y." I have deliberately included "in sea water" in the first sentence of the definition to make it clear that this is an oceanographic quantity. Does this all look OK? If so, then I think the name can be accepted for inclusion in the standard name table. Best wishes, Alison ------ Alison Pamment Tel: +44 1235 778065 NCAS/Centre for Environmental Data Archival Email: [email protected]<mailto:[email protected]> STFC Rutherford Appleton Laboratory R25, 2.22 Harwell Oxford, Didcot, OX11 0QX, U.K. From: CF-metadata [mailto:[email protected]] On Behalf Of Lowry, Roy K. Sent: 26 February 2015 15:29 To: Ajay Krishnan - NOAA Affiliate; [email protected] Subject: Re: [CF-metadata] Request for new standard-name: apparent_oxygen_utilization Hi Alison, Just to clarify that I am in total agreement with this and had a bit of a senior moment in a previous message. Cheers, Roy. ________________________________ From: Ajay Krishnan - NOAA Affiliate [[email protected]] Sent: 26 February 2015 14:56 To: [email protected]<mailto:[email protected]> Subject: Re: [CF-metadata] Request for new standard-name: apparent_oxygen_utilization Hi Alison, Yes, please use mol kg-1 as the canonical unit. Thanks, Ajay alison.pamment at stfc.ac.uk<http://stfc.ac.uk> alison.pamment at stfc.ac.uk <mailto:cf-metadata%40cgd.ucar.edu?Subject=Re%3A%20%5BCF-metadata%5D%20Request%20for%20new%0A%09standard-name%3A%09apparent_oxygen_utilization&In-Reply-To=%3C014539AC4976BE4490A360410A8C20178A2D6062%40EXCHMBX01.fed.cclrc.ac.uk%3E> Thu Feb 26 03:56:32 MST 2015 Dear All, Thank you for the constructive discussion of this proposal - it seems that agreement has been reached on apparent_oxygen_utilisation with canonical units of mol kg-1. (Just to double check: is this the correct unit for use with the World Ocean Database, which I believe is the reason for requesting the name in the first place. Units of mol m-3 have also been mentioned in this discussion, but this could be a misunderstanding. Best wishes, Alison ________________________________ This message (and any attachments) is for the recipient only. NERC is subject to the Freedom of Information Act 2000 and the contents of this email and any reply you make may be disclosed by NERC unless it is exempt from release under the Act. Any material supplied to NERC may be stored in an electronic records management system.
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