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." <r...@bodc.ac.uk> ----- > Date: Fri, 13 Apr 2018 14:02:59 +0000 > From: "Lowry, Roy K." <r...@bodc.ac.uk> > To: "cf-metadata@cgd.ucar.edu" <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 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 enquir...@bodc.ac.uk. > Please also use this e-mail if your requirement is urgent. > > ________________________________ > This message (and any attachments) is for the recipient only. NERC is subject > to the Freedom of Information Act 2000 and the contents of this email and any > reply you make may be disclosed by NERC unless it is exempt from release > under the Act. Any material supplied to NERC may be stored in an electronic > records management system. > ________________________________ > _______________________________________________ > CF-metadata mailing list > CF-metadata@cgd.ucar.edu > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata ----- End forwarded message ----- _______________________________________________ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
