Dear Chris,
My understanding (based on memory not research of the archives) was that this statement was deliberate to allow a single Standard Name to cover a field that is spatial distribution of the velocity of a water body at the point where it is in contact with the atmosphere whether or not it was frozen. In other words, it can represent the sea-ice velocity for some cells and the surface water velocity for others. Checking the archives to confirm this would be advisable before making any change to the definition. 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: CF-metadata <[email protected]> on behalf of Chris Barker <[email protected]> Sent: 09 June 2017 00:35 To: Ute Brönner Cc: [email protected]; Morten Omholt Alver; Tor Nordam; Jonathan Gregory Subject: Re: [CF-metadata] standard names under ice velocity of water On Wed, Jun 7, 2017 at 11:53 PM, Ute Brönner <[email protected]<mailto:[email protected]>> wrote: This is a citation of the CF standard > The surface called "surface" means the lower boundary of the atmosphere. > "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). < > (http://cfconventions.org/Data/cf-standard-names/28/build/cf-standard-name-table.html) In our model we distinguish between ice velocity and the water velocity under the ice in addition to the (average) water velocity in the upper layer. Guess we would be fine if surface_eastward_sea_water_velocity and surface_northward_sea_water_velocity would not include ice per definition. I"d like that too. unfortunately, someone put ""Water means water in all phases, including frozen i.e. ice and snow." in that definition at some point -- can we change it now? I wonder it was there for a real use case, or if that was a definition of "water" from elsewhere that got cut&pasted in... -CHB -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/OR&R (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception [email protected]<mailto:[email protected]> ________________________________ 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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