Dear Roy, I think it's because of the fact that in the upper layer (10m or so) we may have all four of them :
1) surface_eastward_sea_water_velocity and surface_northward_sea_water_velocity for water AND ice This is already a standard name with the definition that >"Water" means water in all phases"< so we can't use it for water only. 2) eastward_sea_ice_velocity and northward_sea_ice_velocity is the one we use for the ice only and 3) underice_eastward_sea_water_velocity and underice_northward_sea_water_velocity we propose for the water under the ice which is different from 4) eastward_sea_water_velocity and northward_sea_water_velocity which we use for the water body that is not at the surface (as the layer has several meters). We use the data for modelling of substances at the surface in the ice, so the separation of these data is important to us. With kind regards / med vennlig hilsen, Ute Ute Brönner Research Scientist & Senior Project Manager Direct phone (+47) 998 98 987 P Consider the environment before printing. Less print-outs, more trees, better planet. From: Lowry, Roy K. [mailto:[email protected]] Sent: 30 May 2017 17:50 To: Ute Brönner <[email protected]>; [email protected] Cc: Petter Rønningen <[email protected]>; Morten Omholt Alver <[email protected]>; Tor Nordam <[email protected]> Subject: Re: [CF-metadata] standard names under ice velocity of water Dear Ute, I would prefer the same Standard Name for the currents in a body of water whether or not it is covered by ice. What happens if you have a full year of data from a position where there is only ice for part of the year? Would you have a change of Standard Name for the water body currents when the ice melts? So, why not use 'eastward_sea_water_velocity' and 'northward_sea_water_velocity'? 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 Ute Brönner <[email protected]<mailto:[email protected]>> Sent: 30 May 2017 15:39 To: [email protected]<mailto:[email protected]> Cc: Petter Rønningen; Morten Omholt Alver; Tor Nordam Subject: [CF-metadata] standard names under ice velocity of water Hei from Norway! Our institute produces metocean data including currents and ice with the variables eastward_sea_ice_velocity and northward_sea_ice_velocity surface_eastward_sea_water_velocity and surface_northward_sea_water_velocity The latter include the velocity of water and ice together: "Water" means water in all phases, including frozen i.e. ice and snow. A velocity is a vector quantity. "Eastward" indicates a vector component which is positive when directed eastward (negative westward). We are also storing the velocity of water under the ice (which one could assume as the difference of the two above, slightly more complicated I think). What would be the standard name for that velocity? If there isn't any yet, may we propose underice_eastward_sea_water_velocity and underice_northward_sea_water_velocity? With kind regards / med vennlig hilsen, Ute Ute Brönner Research Scientist & Senior Project Manager SINTEF Ocean Environmental Technology, Monitoring and Modelling www.sintef.no/DREAM<http://www.sintef.no/DREAM>, www.sintef.no/OSCAR<http://www.sintef.no/OSCAR> OSCAR – Oil Spill Contingency and Response - SINTEF<http://www.sintef.no/OSCAR> www.sintef.no<http://www.sintef.no> DREAM – Dose-related Risk and Effects Assessment Model - SINTEF<http://www.sintef.no/DREAM> www.sintef.no<http://www.sintef.no> Direct phone (+47) 998 98 987 Visiting: Brattørkaia 17C Post: SINTEF Ocean AS, Postbox 4762 Sluppen, N-7465 Trondheim • Consider the environment before printing. Less print-outs, more trees, better planet. _______________________________________________ CF-metadata mailing list [email protected]<mailto:[email protected]> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata CF-metadata Info Page - mailman.cgd.ucar.edu Mailing Lists<http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata> mailman.cgd.ucar.edu This is an unmoderated list for discussions about interpretation, clarification, and proposals for extensions or change to the CF conventions. ________________________________ 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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