Dear Roy, Dear Jonathan,

Thank you for the feedback. I see  that sediment might be ambiguous. Would "seabed sediment" or "marine seabed sediment" be an acceptable alternative?


  moles_of_nitrogen_per_unit_area_in_seabed_sediment

This would clarify that the sea floor is meant as location of the sediment. It would also clarify that not bare rock is meant.

Cheers,
Daniel


On 16.05.2018 11:42, Lowry, Roy K. wrote:

Thanks Daniel,

Couple of additional thoughts that struck me. Is there possibility of confusion between seafloor sediment and suspended sediment? What if the seabed was bare rock?  So, might:

moles_of_nitrogen_per_unit_area_in_seabed

be better?

Let’s see if we get any other thoughts on the list.

Cheers, Roy.

*From:*CF-metadata <cf-metadata-boun...@cgd.ucar.edu> *On Behalf Of *Daniel Neumann
*Sent:* 16 May 2018 09:28
*To:* CF Metadata Mail List <cf-metadata@cgd.ucar.edu>
*Subject:* Re: [CF-metadata] No standard names for element concentrations in sediment?

Dear Roy,

> I think benthos chemistry is virgin territory for CF - not really surprising for a standard that started in the atmosphere before dipping its toes in the ocean.

:-)

> I'm presuming your coming from a modelling perspective,

Yes

In our current model setup (ecosystem model of the water column) we have a fairly simple sediment and write out the nitrogen amount per m2.

This name might be appropriate for this purpose:
moles_of_nitrogen_per_unit_area_in_sediment

unit:
mol/m2

description:
moles_of_X_per_unit_area_in_Y describes the amount of X in a column with unity base area of material/compartment Y. 'Sediment' means particulate matter bound at the sea floor. Information on the location of the interface between water column and sediment can be provided via the comment attribute.


Cheers,
Daniel


On 15.05.2018 18:30, Lowry, Roy K. wrote:

    Dear Daniel,

    I think benthos chemistry is virgin territory for CF - not really
    surprising for a standard that started in the atmosphere before
    dipping its toes in the ocean.

    Some thoughts based on my experience with observed sediment
    chemistry data. The data may be reported  per unit mass of wet or
    dry sediment or per unit volume of wet sediment. Also it is worth
    making clear that 'sediment' means sediment of all grain sizes
    (say a phrase like 'total_sediment') as samples are frequently
    sieved prior to analysis.

    I'm presuming your coming from a modelling perspective, so I'm not
    totally clear about your needs, but would something like
    'mole_concentration_of_nitrogen_in_wet_total_sediment' be what you
    would be looking for?

    Cheers, Roy.

    I am retiring on 31/05/2018 but will continue to be active through
    an Emeritus Fellowship using this e-mail address.

    ------------------------------------------------------------------------

    *From:*CF-metadata <cf-metadata-boun...@cgd.ucar.edu>
    <mailto:cf-metadata-boun...@cgd.ucar.edu> on behalf of Daniel
    Neumann <daniel.neum...@io-warnemuende.de>
    <mailto:daniel.neum...@io-warnemuende.de>
    *Sent:* 15 May 2018 16:51
    *To:* CF Metadata Mail List
    *Subject:* [CF-metadata] No standard names for element
    concentrations in sediment?

    Dear CF Mailing List,

    I am looking for standard names to describe the mole concentration of
    nitrogen in the sediment. The CF standard name table does not contain
    any standard names regarding "mole_concentration" in "sediment". I
    was
    wondering whether another term than "sediment" was used for such
    names.
    I also tried "mud", "seabed", and "sea_bed". Or do no such standard
    names exist at all?

    Cheers,
    Daniel

-- 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: daniel.neum...@io-warnemuende.de
    <mailto:daniel.neum...@io-warnemuende.de>

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--
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:daniel.neum...@io-warnemuende.de 
<mailto:daniel.neum...@io-warnemuende.de>
------------------------------------------------------------------------
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.
------------------------------------------------------------------------

--
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: daniel.neum...@io-warnemuende.de

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