I agree, it's consistent, and may as well be added.
That said, I'm not sure why we don't use 'vertical' for the vertical
component of
all these 3d velocity vectors, and then recommend an attribute that
would specify
the direction (up- or down-ward). I didn't have time to check whether
we have
any standard names that exist in both the upward and downward form ( I'm
not really sure if that would be a problem, any way, but it seems like
it might be).
The reason this is important in my data is that some current meters and
profilers
output a vertical velocity where the direction depends on the
orientation of the
instrument. The vertical velocity is also a measure of measurement
quality in those
data sets, since excessive vertical values usually indicate an error in
the other
vectors.
Cheers - Nan
On 2/26/16 2:46 PM, Jonathan Gregory wrote:
Dear Ken
That looks good to me - clearly consistent with existing names.
Best wishes
Jonathan
----- Forwarded message from "Kehoe, Kenneth E." <kke...@ou.edu> -----
Date: Thu, 25 Feb 2016 20:31:31 +0000
From: "Kehoe, Kenneth E." <kke...@ou.edu>
To: "cf-metadata@cgd.ucar.edu" <cf-metadata@cgd.ucar.edu>
Subject: [CF-metadata] New standard_name: downward_air_velocity
CF,
Can we add downward_air_velocity to be the counter to the existing
upward_air_velocity.
Definition = A velocity is a vector quantity. “Downward" indicates a vector
component which is positive when directed downward (negative upward). Downward air
velocity is the vertical component of the 3D air velocity vector.
Thanks,
Ken
--
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* Nan Galbraith Information Systems Specialist *
* Upper Ocean Processes Group Mail Stop 29 *
* Woods Hole Oceanographic Institution *
* Woods Hole, MA 02543 (508) 289-2444 *
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