[CF-metadata] New standard name for geostrophic ocean velocities

Nan Galbraith ngalbraith at whoi.edu
Tue Mar 7 12:34:25 MST 2017


HI all -

Could someone please provide a link to the other proposed wave names?  I'm
not sure what the CF proposal page means.

Thanks - Nan
> others (mostly period and direction) are still "under
> discussion" on the "CF proposal page".


On 3/7/17 7:17 AM, alison.pamment at stfc.ac.uk wrote:
>
> Dear Stephane,
>
> I have just returned from teaching a course last week. I’m aware that 
> the wave names have been waiting some time and will publish my 
> comments to the mailing list this week.
>
> Best wishes,
>
> Alison
>
> *From:*Stephane TAROT [mailto:Stephane.Tarot at ifremer.fr]
> *Sent:* 07 March 2017 10:24
> *To:* Pamment, Alison (STFC,RAL,RALSP); 
> elodie.fernandez at mercator-ocean.fr; cf-metadata at cgd.ucar.edu
> *Subject:* Re: [CF-metadata] New standard name for geostrophic ocean 
> velocities
>
> Dear Alison,
>
>
> >> I've been having a look at the wave period proposals and will send a separate posting to the list shortly.
>
> Any news on the wave period and wave direction proposals ?
> I'm sorry to rush you, but wave products will soon be officialy 
> launched in Copernicus Marine Service and we are expecting those 
> standard names to be published prior.
>
>
> Best regards
>
> Stéphane Tarot
>
>
> Le 07/02/2017 à 14:12, alison.pamment at stfc.ac.uk 
> <mailto:alison.pamment at stfc.ac.uk> a écrit :
>
>     Dear Elodie,
>
>     Thank you for reminding me about the two geostrophic names. I agree that these two are pretty straight forward. At Nan's suggestion, I've expanded slightly on our standard definition text of "geostrophic", bearing in mind that it applies equally to ocean and atmosphere circulation.
>
>     So now we have:
>
>     geostrophic_eastward_sea_water_velocity (canonical units: m s-1)
>
>     'A velocity is a vector quantity. "Eastward" indicates a vector component which is positive when directed eastward (negative westward). "Geostrophic" indicates that geostrophic balance is assumed, i.e. that the pressure gradient force and the Coriolis force are balanced and the large scale fluid flow is parallel to the isobars.'
>
>     geostrophic_northward_sea_water_velocity (canonical units: m s-1)
>
>     'A velocity is a vector quantity. "Northward" indicates a vector component which is positive when directed northward (negative southward). "Geostrophic" indicates that geostrophic balance is assumed, i.e. that the pressure gradient force and the Coriolis force are balanced and the large scale fluid flow is parallel to the isobars.'
>
>     These two names are accepted for inclusion in the standard name table and will be added in the February update.
>
>     ...
>
>     I've been having a look at the wave period proposals and will send a separate posting to the list shortly.
>
>     Best wishes,
>
>     Alison
>
>         -----Original Message-----
>
>         From: CF-metadata [mailto:cf-metadata-bounces at cgd.ucar.edu] On Behalf Of
>
>         Elodie Fernandez
>
>         Sent: 02 February 2017 10:05
>
>         To:cf-metadata at cgd.ucar.edu <mailto:cf-metadata at cgd.ucar.edu>
>
>         Subject: Re: [CF-metadata] Standard name and area type tables updated
>
>         Dear Alison, dear all,
>
>         Back in September, I suggested the addition of new standard names
>
>         "geostrophic_eastward_sea_water_velocity" and
>
>         "geostrophic_northward_sea_water_velocity" (see
>
>         http://mailman.cgd.ucar.edu/pipermail/cf-metadata/2016/059015.html).
>
>         There have been quite a few updates of the tables since, but those names
>
>         are not included yet. Is there anything I could/should do to get them
>
>         included?
>
>         In April, there were also discussions on the inclusion of wave standard
>
>         names. The height parameters have been included in table v35 in July.
>
>         But the others (mostly period and direction) are still "under
>
>         discussion" on the "CF proposal page". Any news on that topic?
>
>         Regards,
>
>         Elodie
>
>

-- 
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* Nan Galbraith        Information Systems Specialist *
* Upper Ocean Processes Group            Mail Stop 29 *
* Woods Hole Oceanographic Institution                *
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