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." <rkl at bodc.ac.uk> -----
> Date: Fri, 13 Apr 2018 14:02:59 +0000
> From: "Lowry, Roy K." <rkl at bodc.ac.uk>
> To: "cf-metadata at cgd.ucar.edu" <cf-metadata at 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 other label identifying an organism or a group of organisms as belonging to a unit of classification in a hierarchical taxonomy. The identifier adopted for CF is the Life Science Identifier (LSID), a URN with the syntax ?urn:lsid:<Authority>:<Namespace>:<ObjectID>[:<Version>]?. For example, the copepod Calocalanus pavo may be represented by LSIDs ?urn:lsid:marinespecies.org:taxname:104669? (based on WoRMS) and urn:lsid:itis.gov:itis_tsn:85335? (based on ITIS). These URNs may be converted to URLs delivering RDF by prefixing with 'http://lsid.tdwg.org/'.
>
> dimensionless
>
> OR
>
> biological_taxon_lsid
>
> The Life Science Identifier (LSID) is a standard URI for 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. The LSID is a URN with the syntax ?urn:lsid:<Authority>:<Namespace>:<ObjectID>[:<Version>]?. For example, the copepod Calocalanus pavo may be represented by LSIDs ?urn:lsid:marinespecies.org:taxname:104669? (based on WoRMS) and urn:lsid:itis.gov:itis_tsn:85335? (based on ITIS). These URNs may be converted to URLs delivering RDF by prefixing with 'http://lsid.tdwg.org/'.
>
> dimensionless
>
> number_concentration_of_biological_taxon_in_sea_water
>
> Number concentration means the count of an entity per unit volume and is used in the construction ?number_concentration_of_X_in_Y?, where X is a material constituent of Y.. 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. Number concentration of biota is also referred to as abundance.
>
> m-3
>
> mass_concentration_of_biological_taxon_expressed_as_carbon_in_sea_water
>
> Mass concentration means mass per unit volume and is used in the construction ?mass_concentration_of_X_in_Y?, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as
> 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction ?A_expressed_as_B?, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Mass concentration of biota expressed as carbon is also referred to as carbon biomass. 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.
>
> kg m-3
>
>
> mass_concentration_of_biological_taxon_expressed_as_chlorophyll_in_sea_water
>
> Mass concentration means mass per unit volume and is used in the construction ?mass_concentration_of_X_in_Y?, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the
> construction ?A_expressed_as_B?, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Chlorophyll means all naturally occurring pigments of the chlorophyll group. 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.
>
> kg m-3
>
> mass_concentration_of_biological_taxon_expressed_as_nitrogen_in_sea_water
>
> Mass concentration means mass per unit volume and is used in the construction ?mass_concentration_of_X_in_Y?, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as
> 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction ?A_expressed_as_B?, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Mass concentration of biota expressed as nitrogen is also referred to as nitrogen biomass. 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.
>
> kg m-3
>
> mole_concentration_of_biological_taxon_expressed_as_carbon_in_sea_water
>
> Mole concentration means number of moles per unit volume, also called ?molarity?, and is used in the construction ?mole_concentration_of_X_in_Y?, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction ?A_expressed_as_B?, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. 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.
>
> mol m-3
>
> mole_concentration_of_biological_taxon_expressed_as_nitrogen_in_sea_water
>
> Mole concentration means number of moles per unit volume, also called ?molarity?, and is used in the construction ?mole_concentration_of_X_in_Y?, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction ?A_expressed_as_B?, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. 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.
>
> mol m-3
>
>
>
>
> 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 enquiries at bodc.ac.uk. Please also use this e-mail if your requirement is urgent.
>
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Received on Mon Apr 16 2018 - 12:19:42 BST
