Dear Roy, Chris et al. It's possible that it was intentional, but I would tend to think that it is more like cut-and-paste as Chris says, because in a previous system (and this name is very old, I think) we generated the help text automatically, including certain sentences if certain phrases were present in the name. So I would say that sea_water in standard names is a medium, and we don't require the text "water in all phases, including frozen i.e. ice and snow" in the definition. "sea_water" is a phrase used in many standard names, and it doesn't include sea_ice.
Best wishes Jonathan On Fri, Jun 09, 2017 at 08:54:37AM +0000, Lowry, Roy K. wrote: > Date: Fri, 9 Jun 2017 08:54:37 +0000 > From: "Lowry, Roy K." <r...@bodc.ac.uk> > To: Chris Barker <chris.bar...@noaa.gov>, Ute Brönner > <ute.broen...@sintef.no> > CC: "cf-metadata@cgd.ucar.edu" <cf-metadata@cgd.ucar.edu>, Morten Omholt > Alver <morten.al...@sintef.no>, Tor Nordam <tor.nor...@sintef.no>, > Jonathan Gregory <j.m.greg...@reading.ac.uk> > Subject: Re: [CF-metadata] standard names under ice velocity of water > > > 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 enquir...@bodc.ac.uk. > Please also use this e-mail if your requirement is urgent. > > > ________________________________ > From: CF-metadata <cf-metadata-boun...@cgd.ucar.edu> on behalf of Chris > Barker <chris.bar...@noaa.gov> > Sent: 09 June 2017 00:35 > To: Ute Brönner > Cc: cf-metadata@cgd.ucar.edu; 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 > <ute.broen...@sintef.no<mailto:ute.broen...@sintef.no>> 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 > > chris.bar...@noaa.gov<mailto:chris.bar...@noaa.gov> > ________________________________ > 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. > ________________________________ _______________________________________________ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
