[CF-metadata] Standard name for direction of wind gust

Lowry, Roy K. rkl at bodc.ac.uk
Thu Jun 22 07:33:31 MDT 2017


Hi Karl,


It would be far clearer to me if the same construct established for mean wind velocity were applied to gust wind velocity and I would prefer it if the existing constructs (used for currents as well as winds) were left as they are.


So, my preference would be for Stephane's suggestion to be accepted.


Cheers, Roy.


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________________________________
From: CF-metadata <cf-metadata-bounces at cgd.ucar.edu> on behalf of Stephane TAROT <Stephane.Tarot at ifremer.fr>
Sent: 22 June 2017 12:56
To: cf-metadata at cgd.ucar.edu
Subject: Re: [CF-metadata] Standard name for direction of wind gust

Hi,

I think it is better if the construction of this new standard name is
similar with the construction of other ones.

Of course we can discuss if we want to change all the existing
from/to_direction standard_names, but it may take a lot more time to
reach an agreement (On my side, I don't really have an opinion on the
subject. from/to_direction may not be the best construction, but I think
it is clear about what it represents)

I hope that, for the moment, this discussion won't prevent the creation
of this new standard_name !


Best regards

Stéphane Tarot




Le 21/06/2017 à 17:57, Karl Taylor a écrit :
> Hi all,
>
> I don't like "from_direction" as a construct (I know it's already
> accepted for "wind_from_direction" and it is clearly explained in the
> notes but wouldn't
>
> "direction_of_wind_vector_tail" or
> "wind_vector_tail_direction or
> "tail_direction_of_wind_vector"
>
>  be more obvious?
>
> (for the "to" direction you could use "head" or "arrow")
>
> for gust, my vote would be
>
> "direction_of_wind_gust_vector_tail"
>
> (Of course, I would also prefer "speed_of_wind_gust" to
> "wind_gust_speed" , and others probably don't).
>
> best,
> Karl
>
>
> On 6/21/17 3:10 AM, Stephane TAROT wrote:
>> Dear Colleagues,
>>
>> I'd like to request the creation of a standard name for the direction
>> of wind gust (which is linked to the existing wind_speed_of_gust). I
>> suggest
>>
>> wind_from_direction_of_gust (degree)
>>
>>
>> For the definition, a mix of the defintions of wind_from_direction
>> and wind_speed_of_gust can be used, such as :
>>
>> "Wind is defined as a two-dimensional (horizontal) air velocity
>> vector, with no vertical component. (Vertical motion in the
>> atmosphere has the standard name upward_air_velocity.) In
>> meteorological reports, the direction of the wind vector is usually
>> (but not always) given as the direction from which it is blowing
>> (wind_from_direction) (westerly, northerly, etc.). A gust is a sudden
>> brief period of high wind speed. In an observed timeseries of wind
>> speed, the gust wind speed can be indicated by a cell_methods of
>> maximum for the time-interval."
>>
>>
>> Best regards
>>
>> Stéphane Tarot
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________
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>> CF-metadata at cgd.ucar.edu
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>
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