Re: [CF-metadata] Standard Names to support Trac ticket 99

[Jonathan Gregory]

Dear Roy

I agree that the confusion is unlikely. Maybe I shouldn't have given that
example, because it's distracting. My discomfort is just that "taxon" doesn't
mean "organisms" but "name of type of organisms" e.g. in
  mass_concentration_of_biological_taxon_expressed_as_carbon_in_sea_water
you can substitute your proposed definition of taxon, to get
  
mass_concentration_of_name_identifying_an_organism_as_belonging_to_a_unit_of_classification_expressed_as_carbon_in_sea_water
I think you mean
  
mass_concentration_of_organisms_from_biological_taxon_expressed_as_carbon_in_sea_water
That's a bit longer, but feels more comfortable to me.

Best wishes

Jonathan


- Forwarded message from "Lowry, Roy K."  -

> Date: Fri, 27 Apr 2018 11:55:26 +
> From: "Lowry, Roy K." 
> To: "cf-metadata@cgd.ucar.edu" ,
>   "j.m.greg...@reading.ac.uk" 
> Subject: Re: [CF-metadata]  Standard Names to support Trac ticket 99
> 
> Dear Jonathon,
> 
> 
> I realised that I hadn't replied to this. Think we're all agreed on 
> biological_taxon_lsid.
> 
> 
> I can't think of an alternative to cover your second comment, but feel that 
> 'number_concentration_of_biological_taxon' with 'concentration' and taxon in 
> the singular is clearly different from 'number_of_biological_taxa', or more 
> likely 'count_of_biological_taxa' and so feel that there is not a significant 
> risk of confusion.
> 
> 
> 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  on behalf of Jonathan 
> Gregory 
> Sent: 16 April 2018 19:19
> To: cf-metadata@cgd.ucar.edu
> Subject: [CF-metadata] Standard Names to support Trac ticket 99
> 
> Dear Roy
> 
> Thanks for this. It looks sensible and well-constructed to me. I have two
> comments.
> 
> * In response to your question, I think biological_taxon_lsid is better, since
> you propose that's what we use. The more generic version would be suitable if
> we offered a choice about which sort of ID to use, but it would present a
> difficulty if you wanted to provide more than one kind of ID; this would need
> more than one coord var, and it would be helpful to give them different
> standard names.
> 
> * In the concentration names, I think "biological taxon" means "organisms
> of biological taxon", doesn't it? I suggest it would be better to spell this
> out in some way in the standard name. For example,
>   number_concentration_of_biological_taxon_in_sea_water
> might (surprisingly) be interpreted as meaning how many species there are
> per unit volume.
> 
> Best wishes
> 
> Jonathan
> 
> 
> - Forwarded message from "Lowry, Roy K."  -
> 
> > Date: Fri, 13 Apr 2018 14:02:59 +
> > From: "Lowry, Roy K." 
> > To: "cf-metadata@cgd.ucar.edu" 
> > Subject: [CF-metadata] Standard Names to support Trac ticket 99
> >
> > Dear All,
> >
> >
> > Here is an initial batch of 8 Standard Names to support the CF taxon 
> > dimension. Two are dimension labels whilst the other six are measurements 
> > to which the taxon is a co-ordinate. Five of these are to cover Daniel's 
> > proposal that prompted the resurrection of Ticket 99.
> >
> >
> > I've presented a summary list followed by a full list with units and 
> > definitions.  I have one uncertainty in my mind (biological_taxon_label 
> > versus biological_taxon_lsid) where I would really appreciate input.
> >
> >
> > Cheers, Roy.
> >
> > biological_taxon_name
> > biological_taxon_identifier or biological_taxon_lsid – any preferences
> > number_concentration_of_biological_taxon_in_sea_water
> > mass_concentration_of_biological_taxon_expressed_as_carbon_in_sea_water
> > mass_concentration_of_biological_taxon_expressed_as_chlorophyll_in_sea_water
> > mass_concentration_of_biological_taxon_expressed_as_nitrogen_in_sea_water
> > mole_concentration_of_biological_taxon_expressed_as_carbon_in_sea_water
> > mole_concentration_of_biological_taxon_expressed_as_nitrogen_in_sea_water
> >
> >
> > biological_taxon_name
> >
> > A plaintext human-readable label, usually a Latin binomial such as Calanus 
> > finmarchicus, applied to a biological taxon. Biological taxon is a name or 
> > other label identifying an organism or a group of organisms as belonging to 
> > a unit of classification in a hierarchical taxonomy.
> >
> > dimensionless
> >
> > biological_taxon_identifier
> >
> > An opaque label, most usefully a URI that resolves to an authoritative 
> > information source, applied to a biological taxon. Biological taxon is a 
> > name or 

[CF-metadata] proposed additional names for sea_surface_wave parameters

[Saulter, Andrew]

Hi all,

Please find proposals for some additional sea_surface_wave parameters, which 
will be provided as part of Met Office operational forecast products in the 
near future. Hopefully nothing too contentious as mostly an extension of some 
existing CF names.


1.   Addition of 'tertiary_swell' names for existing wave parameters 
defined under 'wind_wave', 'primary_swell' and 'secondary_swell' categories. So 
would add:

sea_surface_tertiary_swell_wave_from_direction
units: degree
The quantity with standard name sea_surface_tertiary_swell_wave_from_direction 
is the direction from which the third most energetic swell waves are coming. 
Swell waves are waves on the ocean surface and are the low frequency portion of 
a bimodal wave frequency spectrum. The tertiary swell wave is the third most 
energetic swell wave. The phrase "from_direction" is used in the construction 
X_from_direction and indicates the direction from which the velocity vector of 
X is coming. The direction is a bearing in the usual geographical sense, 
measured positive clockwise from due north.

sea_surface_tertiary_swell_wave_mean_period
units: s
The quantity with standard name sea_surface_tertiary_swell_wave_mean_period is 
the mean period of the third most energetic swell waves. Swell waves are waves 
on the ocean surface and are the low frequency portion of a bimodal wave 
frequency spectrum. The tertiary swell wave is the third most energetic wave in 
the low frequency portion of a bimodal wave frequency spectrum. A period is an 
interval of time, or the time-period of an oscillation. Wave period is the 
interval of time between repeated features on the waveform such as crests, 
troughs or upward passes through the mean level. Wave mean period is the mean 
period measured over the observation duration.

sea_surface_tertiary_swell_wave_significant_height
Swell waves are waves on the ocean surface and are the low frequency portion of 
a bimodal wave frequency spectrum. The tertiary swell wave is the third most 
energetic wave in the low frequency portion of a bimodal wave frequency 
spectrum. Significant wave height is a statistic computed from wave 
measurements and corresponds to the average height of the highest one third of 
the waves, where the height is defined as the vertical distance from a wave 
trough to the following wave crest.



2.   Addition of peak wave period parameter to 'wind_wave', 
'primary_swell', 'secondary_swell' and 'tertiary_swell' categories. This 
follows the existing standard for 
'sea_surface_wave_period_at_variance_spectral_density_maximum' and adds:

sea_surface_wind_wave_period_at_variance_spectral_density_maximum
units: s
The quantity with standard name 
sea_surface_wind_wave_period_at_variance_spectral_density_maximum is the period 
of the most energetic waves within the wind wave component of a sea. Wind waves 
are waves on the ocean surface and are the high frequency portion of a bimodal 
wave frequency spectrum. A period is an interval of time, or the time-period of 
an oscillation. The phrase "wave_period_at_variance_spectral_density_maximum", 
sometimes called peak wave period, describes the period of the most energetic 
waves within a given sub-domain of the wave spectrum.

sea_surface_primary_swell_wave_period_at_variance_spectral_density_maximum
units: s
The quantity with standard name 
sea_surface_primary_swell_wave_period_at_variance_spectral_density_maximum is 
the period of the most energetic waves within the primary swell wave component 
of a sea. Swell waves are waves on the ocean surface and are the low frequency 
portion of a bimodal wave frequency spectrum. The primary swell wave is the 
most energetic wave component in the low frequency portion of a bimodal wave 
frequency spectrum. A period is an interval of time, or the time-period of an 
oscillation. The phrase "wave_period_at_variance_spectral_density_maximum", 
sometimes called peak wave period, describes the period of the most energetic 
waves within a given sub-domain of the wave spectrum.

sea_surface_secondary_swell_wave_period_at_variance_spectral_density_maximum
units: s
The quantity with standard name 
sea_surface_secondary_swell_wave_period_at_variance_spectral_density_maximum is 
the period of the most energetic waves within the secondary swell wave 
component of a sea. Swell waves are waves on the ocean surface and are the low 
frequency portion of a bimodal wave frequency spectrum. The secondary swell 
wave is the most energetic wave component in the low frequency portion of a 
bimodal wave frequency spectrum. A period is an interval of time, or the 
time-period of an oscillation. The phrase 
"wave_period_at_variance_spectral_density_maximum", sometimes called peak wave 
period, describes the period of the most energetic waves within a given 
sub-domain of the wave spectrum.

sea_surface_tertiary_swell_wave_period_at_variance_spectral_density_maximum
units: s
The quantity with standard name