Dear Daniel and Roy, Thank you, Daniel, for proposing two new standard names. I agree with Roy that they should be a straight forward addition to the table.
I have added text into the first definition based on our existing dissolved_inorganic_nitrogen names (which is consistent with the text in the proposal): mole_concentration_of_dissolved_inorganic_nitrogen_in_sea_water (mol m-3) '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 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". "Inorganic nitrogen" describes a family of chemical species which, in an ocean model, usually includes nitrite, nitrate and ammonium which act as nitrogen nutrients. "Inorganic nitrogen" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.' For the second name I have again added a couple of general sentences at the end of the definition: mole_concentration_of_particulate_organic_nitrogen_in_sea_water (mol m-3) '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 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". "Particulate organic nitrogen" means the sum of all organic nitrogen compounds that are solid, or bound to solid particles. "Particulate organic nitrogen" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.' If you are happy with these, then I think both names can be accepted and included in the next standard name table update. We haven't previously had a definition for particulate_organic_nitrogen, so I will add it to the one existing name, sinking_mole_flux_of_particulate_organic_nitrogen_in_sea_water: 'In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. 'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid. "Particulate organic nitrogen" means the sum of all organic nitrogen compounds that are solid, or bound to solid particles. "Particulate organic nitrogen" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.' Best wishes, Alison ------ Alison Pamment Tel: +44 1235 778065 NCAS/Centre for Environmental Data Archival Email: [email protected] STFC Rutherford Appleton Laboratory R25, 2.22 Harwell Oxford, Didcot, OX11 0QX, U.K. From: CF-metadata <[email protected]> On Behalf Of Lowry, Roy K. Sent: 26 November 2018 05:48 To: Daniel Neumann <[email protected]>; [email protected] Subject: Re: [CF-metadata] New standard names for Dissolved Inorganic Nitrogen and Particulate Organic Nitrogen Hi Daniel, These look straightforward to me and would be a useful addition. Cheers, Roy. I have now retired but will continue to be active through an Emeritus Fellowship using this e-mail address. ________________________________________ From: CF-metadata on behalf of Daniel Neumann Sent: 22 November 2018 09:08 To: mailto:[email protected] Subject: [CF-metadata] New standard names for Dissolved Inorganic Nitrogen and Particulate Organic Nitrogen Dear all, I would like to propose two new standard names: mole_concentration_of_dissolved_inorganic_nitrogen_in_sea_water mole_concentration_of_particulate_organic_nitrogen_in_sea_water A similar standard name for "dissolved inorganic phosphorus" exists already. Moreover, a few tendency/flux standard names exist for "dissolved inorganic nitrogen" and "particulate organic nitrogen". The descriptions and units are given below. Regards, Daniel name: mole_concentration_of_dissolved_inorganic_nitrogen_in_sea_water description: 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 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". "Dissolved inorganic nitrogen" means the sum of all inorganic nitrogen in solution (including nitrate, ammonia, and nitrite). unit: mol m-3 name: mole_concentration_of_particulate_organic_nitrogen_in_sea_water description: 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 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". "Particulate organic nitrogen" means the sum of all organic nitrogen compounds, which are solid or which are bound to solid particles. unit: mol m-3 -- Daniel Neumann Leibniz Institute for Baltic Sea Research Warnemuende Physical Oceanography and Instrumentation Seestrasse 15 18119 Rostock Germany phone: +49-381-5197-287 fax: +49-381-5197-114 or 440 e-mail: mailto:[email protected] This email and any attachments are intended solely for the use of the named recipients. If you are not the intended recipient you must not use, disclose, copy or distribute this email or any of its attachments and should notify the sender immediately and delete this email from your system. UK Research and Innovation has taken every reasonable precaution to minimise risk of this email or any attachments containing viruses or malware but the recipient should carry out its own virus and malware checks before opening the attachments. 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