move CNDC to be an intermediate core parameter

[apswong]

I would like to propose moving CNDC to be an "intermediate core" parameter. This proposal is supported by @cabanesc and @coatanoan.

CNDC is by nature an intermediate parameter, being an input to compute salinity. Most floats do not return this parameter; only some floats from the early days of Argo, and some experimental floats, do so. For the floats that do return CNDC, delayed-mode operators need to do a superficial step to fill CNDC_ADJUSTED with adjustments derived from salinity. This is an awkward step, as some salinity adjustments, such as the cell thermal lag correction, should not be applied to CNDC.

In the past, we were not able to designate parameters as "intermediate core". But now we can. Being an intermediate parameter means there is no need to include CNDC_ADJUSTED, CNDC_ADJUSTED_QC and CNDC_ADJUSTED_ERROR in the Argo data files.

[catsch]

It makes sense. @apswong, tell me when I have green light to update the parameters list

[catsch]

Hi annie, I ve made the change and push cndc into an ic in the excel sheet best CAtherine

-- Catherine Schmechtig

0681827411

LEFE-CYBER Database http://www.obs-vlfr.fr/proof

BGC Argo http://biogeochemical-argo.org/

https://github.com/catsch

OSU Ecce Terra Sorbonne Université - CNRS - UMS 3455 4, Place Jussieu 75 252 Paris Cedex 05 Tour 45 - couloir 45-55 2eme etage - 207

De: "Annie Wong" @.> À: "nvs-vocabs/ArgoVocabs" @.> Cc: "Catherine Schmechtig" @.>, "Comment" @.> Envoyé: Vendredi 9 Décembre 2022 21:28:56 Objet: [nvs-vocabs/ArgoVocabs] move CNDC to be an intermediate core parameter (Issue #46)

I would like to propose moving CNDC to be an "intermediate core" parameter. This proposal is supported by [ https://github.com/cabanesc | @cabanesc ] and [ https://github.com/coatanoan | @coatanoan ] .

CNDC is by nature an intermediate parameter, being an input to compute salinity. Most floats do not return this parameter; only some floats from the early days of Argo, and some experimental floats, do so. For the floats that do return CNDC, delayed-mode operators need to do a superficial step to fill CNDC_ADJUSTED with adjustments derived from salinity. This is an awkward step, as some salinity adjustments, such as the cell thermal lag correction, should not be applied to CNDC.

In the past, we were not able to designate parameters as "intermediate core". But now we can. Being an intermediate parameter means there is no need to include CNDC_ADJUSTED, CNDC_ADJUSTED_QC and CNDC_ADJUSTED_ERROR in the Argo data files.

— Reply to this email directly, [ https://github.com/nvs-vocabs/ArgoVocabs/issues/46 | view it on GitHub ] , or [ https://github.com/notifications/unsubscribe-auth/AEJ4NPWTBI4CF2YRIFJDWBDWMOJARANCNFSM6AAAAAASZXFCRM | unsubscribe ] . You are receiving this because you commented. Message ID: <nvs-vocabs/ArgoVocabs/issues/46 @ github . com>

[tcarval]

The parameters list is now published on ADMT web site : http://www.argodatamgt.org/Data-Mgt-Team/News/Argo-physical-parameters-list-updated7
Next steps :

• update the file format checker to manage CNDC as intermediate core parameter. No more adjustment on CNDC parameter : CNDC_ADJUSTED, CNDC_ADJUSTEDERROR (CNDC*) should not be reported in Argo NetCDF files.
• update the DACs decoders to remove CNDC_* from real-time adjusted files
• Should we (?) update the delayed mode data processing chains to remove CNDC_* from delayed mode files