Mapping of P01 to existing P35: review of criteria in place and recent requests for additional mappings

[gwemon]

We have received a request for the following mappings: EPC00105 Water body chlorophyll-a CHLTVOLU mg/m3 Concentration of chlorophyll {Chl CAS 1406-65-1} per unit volume of the water body EPC00105 Water body chlorophyll-a CPHLPRKG mg/kg Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit mass of the water body [particulate >unknown phase] by in-situ chlorophyll fluorometer EPC00105 Water body chlorophyll-a CPHLPRKG ug/l Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit mass of the water body [particulate >unknown phase] by in-situ chlorophyll fluorometer EPC00105 Water body chlorophyll-a CPHLFLCF ug/l Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate 0.2-10um phase] by cascade filtration, acetone extraction and fluorometry EPC00105 Water body chlorophyll-a SCHLHPPF ug/l Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate 0.2-2um phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) EPC00105 Water body chlorophyll-a SCHLFLPC ug/l Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate 2-5um phase] by filtration, acetone extraction and fluorometry EPC00105 Water body chlorophyll-a SCHLFLPN ug/l Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate GF/F-2um phase] by filtration, acetone extraction and fluorometry EPC00105 Water body chlorophyll-a SCHLFLPM ug/l Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate GF/F-5um phase] by filtration, acetone extraction and fluorometry EPC00107 Water body chlorophyll-c CHLC12PX mg/m3 Concentration of chlorophyll-c1+c2 per unit volume of the water body EPC00107 Water body chlorophyll-c CHLC03PX mg/m3 Concentration of chlorophyll-c3 {chl-c3} per unit volume of the water body EPC00190 Water body dissolved organic carbon {DOC} CORGCOTX umol/l Concentration of organic carbon {organic_C CAS 7440-44-0} {DOC} per unit volume of the water body [dissolved plus reactive particulate phase] by high temperature Pt catalytic oxidation EPC00190 Water body dissolved organic carbon {DOC} CORGCOZX umol/l Concentration of organic carbon {organic_C CAS 7440-44-0} {DOC} per unit volume of the water body [unknown phase] by high temperature catalytic oxidation EPC00157 Water body particulate organic carbon {POC} CORGCAP1 % Concentration of organic carbon {organic_C CAS 7440-44-0} {POC} per unit volume of the water body [particulate >GF/F phase] by filtration, acidification and elemental analysis EPC00190 Water body dissolved organic carbon {DOC} IC000083 umol/l Concentration of organic carbon {organic_C CAS 7440-44-0} per unit volume of the water body [dissolved plus reactive particulate <unknown phase] EPC00159 Water body organic nitrogen DONXXXX1 umol/l Concentration of organic nitrogen {organic_N} {DON} per unit volume of the water body [dissolved plus reactive particulate <GF/F phase] EPC00002 Water body dissolved oxygen concentration DOXYSCKG umol/kg Concentration of oxygen {O2 CAS 7782-44-7} per unit mass of the water body [dissolved plus reactive particulate phase] by Sea-Bird SBE 43 sensor and calibration against sample data EPC00002 Water body dissolved oxygen concentration DOXYUCKG umol/kg Concentration of oxygen {O2 CAS 7782-44-7} per unit mass of the water body [dissolved plus reactive particulate phase] by Sea-Bird SBE 43 sensor and no calibration against sample data EPC00007 Water body phosphate PHOSZZXX nmol/l Concentration of phosphate {PO43- CAS 14265-44-2} per unit volume of the water body [unknown phase] EPC00160 Water body dissolved nitrogen NTCOKGOA umol/kg Concentration of total nitrogen {total_N} per unit mass of the water body [dissolved plus reactive particulate phase] by oxidation and colorimetric autoanalysis EPC00160 Water body dissolved nitrogen NTOTKJM1 ug/l Concentration of total nitrogen {total_N} per unit volume of the water body [dissolved plus reactive particulate phase] by Kjeldahl method EPC00201 Water body particulate phosphorus TPHSMSPT umol/kg Concentration of total phosphorus {total_P CAS 7723-14-0} per unit mass of the water body [particulate >unknown phase] EPC00201 Water body particulate phosphorus PHPSIN01 mg/l Concentration of total phosphorus {total_P CAS 7723-14-0} per unit volume of the water body [particulate >51um phase] EPC00201 Water body particulate phosphorus TPHSWCP1 umol/l Concentration of total phosphorus {total_P CAS 7723-14-0} per unit volume of the water body [particulate >GF/F phase] by filtration, oxidation and colorimetric autoanalysis EPC00133 Water body carbon dioxide partial pressure PCO2C101 uatm Partial pressure of carbon dioxide {CO2 CAS 124-38-9} {pCO2} in the water body by computation from pH and alkalinity EPC00168 Water body pH PHTLSX25 pH units pH (total scale at zero pressure and 25 degrees Celsius) {pH[T]} per unit mass of the water body EPC00003 Water body dissolved oxygen saturation DOXYMOD1 % Saturation of oxygen {O2 CAS 7782-44-7} in the water body [dissolved plus reactive particulate phase] by model prediction

[gwemon]

This is my analysis for the chlorophyll parameters: EPC00105 Water body chlorophyll-a CHLTVOLU mg/m3 Concentration of chlorophyll {Chl CAS 1406-65-1} per unit volume of the water body >> P01 too broad EPC00105 Water body chlorophyll-a CPHLPRKG mg/kg Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit mass of the water body [particulate >unknown phase] by in-situ chlorophyll fluorometer >> P01 too vague (would include uncalibrated fluorometer data) EPC00105 Water body chlorophyll-a CPHLPRKG ug/l Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit mass of the water body [particulate >unknown phase] by in-situ chlorophyll fluorometer >> P01 too vague (would include uncalibrated fluorometer data) EPC00105 Water body chlorophyll-a CPHLFLCF ug/l Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate 0.2-10um phase] by cascade filtration, acetone extraction and fluorometry >> P01 is for <10um fraction EPC00105 Water body chlorophyll-a SCHLHPPF ug/l Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate 0.2-2um phase] by filtration, acetone extraction and high performance liquid chromatography >> P01 is for <2um fraction EPC00105 Water body chlorophyll-a SCHLFLPC ug/l Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate 2-5um phase] by filtration, acetone extraction and fluorometry >> P01 is for <5um fraction EPC00105 Water body chlorophyll-a SCHLFLPN ug/l Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate GF/F-2um phase] by filtration, acetone extraction and fluorometry >> P01 is for <2um fraction EPC00105 Water body chlorophyll-a SCHLFLPM ug/l Concentration of chlorophyll-a {chl-a CAS 479-61-8} per unit volume of the water body [particulate GF/F-5um phase] by filtration, acetone extraction and fluorometry >> P01 is for <5um fraction EPC00107 Water body chlorophyll-c CHLC12PX mg/m3 Concentration of chlorophyll-c1+c2 per unit volume of the water body >> P01 is only a subset of chl-c EPC00107 Water body chlorophyll-c CHLC03PX mg/m3 Concentration of chlorophyll-c3 {chl-c3} per unit volume of the water body >> P01 is only a subset of chl-c

So none of these P01 codes qualify for mapping to the existing P35 as far as I know. Please could you put thumb up if you agree or comment below if you see reason to include these P01 in the mappings.

[gwemon]

For the oxygen parameters: DOXYMOD1 Saturation of oxygen {O2 CAS 7782-44-7} in the water body [dissolved plus reactive particulate phase] by model prediction Exclude >> oxygen saturation values cannot be aggregated with concentration of oxygen values; also, it is simulated data ("model prediction") and not in situ data so would be excluded anyway DOXYUCKG Concentration of oxygen {O2 CAS 7782-44-7} per unit mass of the water body [dissolved plus reactive particulate phase] by Sea-Bird SBE 43 sensor and no calibration against sample data Exclude >> the data are not calibrated DOXYSCKG Concentration of oxygen {O2 CAS 7782-44-7} per unit mass of the water body [dissolved plus reactive particulate phase] by Sea-Bird SBE 43 sensor and calibration against sample data Should have been included; not sure why it was excluded in the first place; I will check; could have been an oversight

[mmolinajack]

Hi @gwemon, I have reviewed the Salinity parameters that are included in P35 (http://vocab.nerc.ac.uk/collection/P35/current/EPC00001/). There are 4 P01 that regard the Salinity standard deviation and therefore should be excluded: PSSDCU02, PSALSD01, PSSDBSTX, PSSDCU01

[gwemon]

Hi @gwemon, I have reviewed the Salinity parameters that are included in P35 (http://vocab.nerc.ac.uk/collection/P35/current/EPC00001/). There are 4 P01 that regard the Salinity standard deviation and therefore should be excluded: PSSDCU02, PSALSD01, PSSDBSTX, PSSDCU01

Done - mappings removed

[gwemon]

DOXYSCKG

Done - added DOXYSCKG to mappings between P35 and P01. They will be live on the NVS within the next 24h

[gwemon]

Marilena also requested addition of CPHLINTC but the data are integrated over the water column hence no compatible for integration with chl-a concentrations per unit volume.

[gwemon]

For the oxygen parameters: DOXYMOD1 Saturation of oxygen {O2 CAS 7782-44-7} in the water body [dissolved plus reactive particulate phase] by model prediction Exclude >> oxygen saturation values cannot be aggregated with concentration of oxygen values; also, it is simulated data ("model prediction") and not in situ data so would be excluded anyway DOXYUCKG Concentration of oxygen {O2 CAS 7782-44-7} per unit mass of the water body [dissolved plus reactive particulate phase] by Sea-Bird SBE 43 sensor and no calibration against sample data Exclude >> the data are not calibrated DOXYSCKG Concentration of oxygen {O2 CAS 7782-44-7} per unit mass of the water body [dissolved plus reactive particulate phase] by Sea-Bird SBE 43 sensor and calibration against sample data Should have been included; not sure why it was excluded in the first place; I will check; could have been an oversight

I missed the fact that there is actually a P35 code for oxygen saturation: http://vocab.nerc.ac.uk/collection/P35/current/EPC00003/ - still the proposed parameter addition cannot be implemented because this code is for data derived from a model simulation.

[gwemon]

@julie Gatti also requested:

• CHLBHPP1: Concentration of chlorophyll-b {chl-b CAS 519-62-0} per unit volume of the water body [particulate >GF/F phase] by filtration, acetone extraction and high performance liquid chromatography (HPLC) => EPC00106 (Water body chlb)
• NTKGAATX: Concentration of nitrate+nitrite {NO3+NO2} per unit mass of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis => EPC00005 (Water body nitrate plus nitrite)
• SLKGAATX: Concentration of silicate {SiO44- CAS 17181-37-2} per unit mass of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis

=> EPC00008 (Water body silicate)

CHLBHPP1 already mapped to P35 Added NTKGAATX and SLKGAATX to their respective P35 aggregation term.

[gwemon]

The following mappings are now live on the NVS:

P35 Identifier | P35 Preferred label | Relationship | P01 Identifier | P01 Preferred label | Date created | Creator | Status -- | -- | -- | -- | -- | -- | -- | -- [SDN:P35::EPC00008](https://vocab.nerc.ac.uk/collection/P35/current/EPC00008/) | Water body silicate | narrower | [SDN:P01::SLKGAATX](https://vocab.nerc.ac.uk/collection/P01/current/SLKGAATX/) | Concentration of silicate {SiO44- CAS 17181-37-2} per unit mass of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis | 2022-10-25 03:10:34 | Gwenaelle Moncoiffe | valid [SDN:P35::EPC00005](https://vocab.nerc.ac.uk/collection/P35/current/EPC00005/) | Water body nitrate plus nitrite | narrower | [SDN:P01::NTKGAATX](https://vocab.nerc.ac.uk/collection/P01/current/NTKGAATX/) | Concentration of nitrate+nitrite {NO3+NO2} per unit mass of the water body [dissolved plus reactive particulate phase] by colorimetric autoanalysis | 2022-10-25 03:10:31 | Gwenaelle Moncoiffe | valid [SDN:P35::EPC00002](https://vocab.nerc.ac.uk/collection/P35/current/EPC00002/) | Water body dissolved oxygen concentration | narrower | [SDN:P01::DOXYSCKG](https://vocab.nerc.ac.uk/collection/P01/current/DOXYSCKG/) | Concentration of oxygen {O2 CAS 7782-44-7} per unit mass of the water body [dissolved plus reactive particulate phase] by Sea-Bird SBE 43 sensor and calibration against sample data | 2022-10-25 03:10:26 | Gwenaelle Moncoiffe | valid

[mmolinajack]

Hi @gwemon, P35 related to pH contains P01: P01:ACIDZZXX | Acidity of the water body (http://vocab.nerc.ac.uk/collection/P01/current/ACIDZZXX/) It should be excluded as it does not give a measurement of pH. Thanks

[gwemon]

Hi @gwemon, P35 related to pH contains P01: P01:ACIDZZXX | Acidity of the water body (http://vocab.nerc.ac.uk/collection/P01/current/ACIDZZXX/) It should be excluded as it does not give a measurement of pH. Thanks

Done - it will be live (i.e. no longer visible) on the NVS tomorrow.

[mmolinajack]

Thanks!