[Seavox] [sdc-tech] New L05 concepts
Michele FICHAUT
Michele.Fichaut at ifremer.fr
Wed Oct 10 16:25:41 BST 2018
Dear colleagues,
Actually, I want to use both :
* L05 in the metadata CDI files where I would like to distinguished
XBTs from MBTs
* L22 codes in the data files on the SDN_parameter_mapping lines
where I will add the L22 codes of the XBT or MBT used.
The generic L22 codes could also be useful for us for managing *old
historical* *data* where we do not find the exact type of XBT that was
used, which unfortunately happens quite often.
Best regards
Michèle
Le 10/10/2018 à 17:11, Lowry, Roy K. a écrit :
>
> Dear Alessandro,
>
>
> I don't see Michele's request for L05 and your request for a generic
> XBT entry in L22 as mutually exclusive.
>
>
> I think Michele needs to distinguish XBTs and MBTs in CDI records,
> which are marked up using L05 rather than L22. This needs the L05
> extension unless Michele is happy to use the XLINK mechanism to link
> to L22 concepts even though this isn't searchable through the CDI
> interface.
>
>
> Michele, have I understood this correctly? Could you please confirm
> that you still want the new L05 entries?
>
>
> A generic XBT entry could be set up in L22. I don't like generic
> entries because they encourage short-cuts when creating metadata. It's
> much easier to use a generic concept than do the research necessary to
> obtain a more precise description of the data production tool.
> However, I do concede that there are times when no amount of research
> will provide the necessary information and a generic concept has to be
> used. A note to all is that this should be considered as a last
> resort. There are times - such as drop-rate equation corrections -
> where detailed knowledge of the XBT type is important.
>
>
> Cheers, Roy.
>
>
> I have now retired but will continue to be active through an Emeritus
> Fellowship using this e-mail address.
>
>
>
> ------------------------------------------------------------------------
> *From:* Altenburger, Alessandro <aaltenburger at inogs.it>
> *Sent:* 10 October 2018 11:15
> *To:* Lowry, Roy K.
> *Cc:* seavox at mail.nerc-liv.ac.uk; sdc-tech at seadatanet.org; Darroch,
> Louise J.
> *Subject:* Re: [sdc-tech] New L05 concepts
> Dear All,
>
> would it be possible to keep L05 as iti (bathythermographs) and save
> the information on "expendable bathythermographs" in L22 vocab,
> possibly adding a new general term like"Generic XBT" (following the
> example for the L22 code labelled "TOOL0001")?
>
> This new L22 term would be useful for our needs.
>
> Many thanks in advance,
> best regards,
> Alessandro
>
> Il giorno ven 5 ott 2018 alle ore 16:02 Lowry, Roy K. <rkl at bodc.ac.uk
> <mailto:rkl at bodc.ac.uk>> ha scritto:
>
> Dear All,
>
>
> A couple of suggestions here.
>
>
> First, the new terms should be mapped to the existing term within
> NVS.
>
>
> Secondly, in an ideal world semantic reasoning when searching
> metadata would cause records marked up with the new terms to be
> selected when searching for 'bathythermographs'. To my knowledge
> we haven't got this functionality so it might be a good idea to
> include 'bathythermographs' as well as 'expendable
> bathythermographs' when marking up XBT metadata.
>
>
> Cheers, Roy.
>
>
> I have now retired but will continue to be active through an
> Emeritus Fellowship using this e-mail address.
>
>
>
> ------------------------------------------------------------------------
> *From:* sdc-tech-request at listes.seadatanet.org
> <mailto:sdc-tech-request at listes.seadatanet.org>
> <sdc-tech-request at listes.seadatanet.org
> <mailto:sdc-tech-request at listes.seadatanet.org>> on behalf of
> Darroch, Louise J. <louise.darroch at bodc.ac.uk
> <mailto:louise.darroch at bodc.ac.uk>>
> *Sent:* 05 October 2018 11:31
> *To:* seavox at mailman.nerc-liv.ac.uk
> <mailto:seavox at mailman.nerc-liv.ac.uk>; sdc-tech at seadatanet.org
> <mailto:sdc-tech at seadatanet.org>
> *Subject:* [sdc-tech] New L05 concepts
>
> Dear colleagues
>
> I would like to propose two new L05 categories. In a similar
> manner for CTDs, they are more granular terms for
> bathythermographs (132). This is to help our users distinguish
> between XBTs and MBTs:
>
> Long_name: Expendable bathythermographs
>
> Short_name: XBT
>
> Description: Disposable, free-falling probes that measure
> temperature in relation to depth using a thermistor and electronic
> data acquisition system. Probes are dropped into the water and a
> temperature signal is transferred to the platform by a wire that
> breaks when the wire is out. Depth is calculated as a function of
> time to descend and a known constant rate of descent.
>
> Long_name: Mechanical bathythermographs
>
> Short_name: MBT
>
> Description: Tethered probes that measure temperature in relation
> to depth using a temperature and pressure package that is lowered
> into the water and subsequently retrieved using a winch. The
> profile of temperature is recorded mechanically by etchings on a
> glass slide. Depth is calculated as a function of pressure.
>
> Please could I have any feedback by the 12^th October?
>
> Many thanks
>
> Lou
>
> Dr Louise Darroch
>
> Senior Data Scientist
>
> British Oceanographic Data Centre (BODC)
>
> National Oceanography Centre, Liverpool
>
> Tel: +44 (0)151 795 4883
>
> ------------------------------------------------------------------------
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> ------------------------------------------------------------------------
> This message (and any attachments) is for the recipient only. NERC
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> ------------------------------------------------------------------------
> This message (and any attachments) is for the recipient only. NERC is
> subject to the Freedom of Information Act 2000 and the contents of
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> is exempt from release under the Act. Any material supplied to NERC
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--
Site Ifremer <http://www.ifremer.fr>
Michèle FICHAUT <http://annuaire.ifremer.fr/cv/16035/en/> (ORCID)
<http://orcid.org/0000-0001-5900-6149> Centre de Brest
ZI de la pointe du diable
CS 10070 - 29280 Plouzané
Infrastructures de Recherche et Systèmes d'Information(IRSI)
Systèmes d'Informations Scientifiques pour la MER (SISMER)
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