Dear Matthias,
My concern with your suggestion is that in effect you are asking for the the Standard Name + definition to be semantically narrowed. Should somebody have used the Standard Name without this clarification for corrected data then the proposed change would introduce a semantic error into their data John G might question anybody like me sharing your assumptions - he is a semantic metadata specialist rather than a hands-on chemist - but he is absolutely right that they are invalid for the semantics of the Standard Name as published. Cheers, Roy. Please note that I partially retired on 01/11/2015. I am now only working 7.5 hours a week and can only guarantee e-mail response on Wednesdays, my day in the office. All vocabulary queries should be sent to [email protected]. Please also use this e-mail if your requirement is urgent. ________________________________ From: Matthias Tuma <[email protected]> Sent: 08 June 2017 16:32 To: Lowry, Roy K. Cc: [email protected] Subject: Re: [CF-metadata] Sea water pH values: at standard or in-situ conditions? Dear Roy, thank you for your helpful comment on the in-situ conditions. For the question about adding this information in some way, perhaps I had worded this ambiguously. I was more asking about updating the description (and not in fact the standard name). Best regards, Matthias On Thu, Jun 8, 2017 at 12:18 PM, Lowry, Roy K. <[email protected]<mailto:[email protected]>> wrote: Dear Matthias, All I can say that is that in-situ conditions were my assumption when involved in the initial discussions on this issue. However, I would not rely on the Standard Name to convey such detailed usage metadata information. Its function is to describe what was measured rather than the details of how it was measured. For many years I have been suggesting the development of O&M Process Document standard profiles to do this job properly. In the mean time all I can suggest is to use the Long Name parameter attribute if you need to label more explicitly in CF. Cheers, Roy. Please note that I partially retired on 01/11/2015. I am now only working 7.5 hours a week and can only guarantee e-mail response on Wednesdays, my day in the office. All vocabulary queries should be sent to [email protected]<mailto:[email protected]>. Please also use this e-mail if your requirement is urgent. ________________________________ From: CF-metadata <[email protected]<mailto:[email protected]>> on behalf of Matthias Tuma <[email protected]<mailto:[email protected]>> Sent: 08 June 2017 10:56 To: [email protected]<mailto:[email protected]> Subject: [CF-metadata] Sea water pH values: at standard or in-situ conditions? Hello all, we had a question come up for the "sea_water_ph_reported_on_total_scale" standard name: it appears that for some communities, in particular on the measurement side, pH would regularly be reported only after first having converted to its equivalent at standard conditions (25C, 0dbar). In other communities, pH would most regularly be reported at in-situ conditions (temperature and pressure at actual measurement spot). While we assume that the CF conventions would implicitly assume values to be reported at in-situ conditions (i.e., the latter variant), my two questions are: 1) whether someone can confirm this, to be 100% certain?, and 2) whether adding a few according clarifying words to the description would be seen as useful? Thanks and best, Matthias -- Matthias Tuma WCRP Junior Professional Officer c/o WMO 7bis, avenue de la Paix Case postale 2300 CH-1211 Geneva 2 Switzerland Tel: +41 22 730 8217<tel:+41%2022%20730%2082%2017> Fax: +41 22 730 8036<tel:+41%2022%20730%2080%2036> Email: [email protected]<mailto:[email protected]> http://www.wcrp-climate.org ------------------------------------------------------------------------------ The information contained in this electronic message and any attachments are intended for specific individuals or entities, and may be confidential, proprietary or privileged. If you are not the intended recipient, please notify the sender immediately, delete this message and do not disclose, distribute or copy it to any third party or otherwise use this message. The content of this message does not necessarily reflect the official position of the World Meteorological Organization (WMO) unless specifically stated. Electronic messages are not secure or error free and may contain viruses or may be delayed, and the sender is not liable for any of these occurrences. ------------------------------------------------------------------------------ Please do not print this e-mail unless absolutely necessary - SAVE PAPER ________________________________ 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. ________________________________ -- Matthias Tuma WCRP Junior Professional Officer c/o WMO 7bis, avenue de la Paix Case postale 2300 CH-1211 Geneva 2 Switzerland Tel: +41 22 730 8217 Fax: +41 22 730 8036 Email: [email protected]<mailto:[email protected]> http://www.wcrp-climate.org ------------------------------------------------------------------------------ The information contained in this electronic message and any attachments are intended for specific individuals or entities, and may be confidential, proprietary or privileged. If you are not the intended recipient, please notify the sender immediately, delete this message and do not disclose, distribute or copy it to any third party or otherwise use this message. The content of this message does not necessarily reflect the official position of the World Meteorological Organization (WMO) unless specifically stated. Electronic messages are not secure or error free and may contain viruses or may be delayed, and the sender is not liable for any of these occurrences. ------------------------------------------------------------------------------ Please do not print this e-mail unless absolutely necessary - SAVE PAPER ________________________________ 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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