Expertsmeeting SPLIT, Croatia June 2014 REPORT ON ATLANTIC AREA With IFREMER, RIHMI-WDC, IHPT and IEO contributions

Experts meeting – SPLIT 19June /n Data received in two separated sets – Data collected by MARIS robot (8 757 CDIs) stations of vertical profiles, 268 time series – Additional Spanish data which were not available when the robot run (2 780 CDIs, vertical profiles) DATA INVENTORY (1) Potential duplicates!

Experts meeting – SPLIT 19June /n DATA INVENTORY (2) EDMO CodeNameCountryNb of CDIs 353IEOSpain IFREMERFrance IHPTPortugal IMRNorway11 681RIHMIRussian Federation2 507 Total11 537

Experts meeting – SPLIT 19June /n Deletion of empty stations (No measurements on all levels for the parameter) Deletion of empty lines in a station : some levels with no measurements for the parameter Search for duplicates (linked to the 2 distinct datasets) QC using ODV – Search for out of range values with Flag = 1 – Set a QC for all measurements with Flag=0 – Set default values with Flag=0 or Flag=1 to Flag=9 Write a report on QC and send results to data providers QUALITY CHECKS

Experts meeting – SPLIT 19June /n Nitrate and Nitrite Ammonium Phosphate Silicate NUTRIENTS PARAMETERS

Experts meeting – SPLIT 19June /n Parameters Nb stations Nb measurements NTRI+NTRA (µmol/l) NTRI (µmol/l) NTRA (µmol/l) NTAW (µmol/kg)78998 NTIW (µmol/kg)78826 Nitrite (µg/l) Nitrate (µg/l)78225 Total NO2 – NO3 DATA, BEFORE QC (1) vertical profiles, received as

Experts meeting – SPLIT 19June /n Output parameter for product = – NOx = Nitrite+Nitrate [µmol/l] Assumptions – When only Nitrate available  assumption that it is Nitrate+Nitrite – When only Nitrite measurements : data not kept Conversions – Conversion from µmol/kg  µmol/l: using ODV conversion Any µmol/kg to Any µmol/l – Conversions from µg/l  µmol/l: NO2+NO3/ NO2 – NO3 DATA, BEFORE QC (2)

Experts meeting – SPLIT 19June /n NO2-NO3 DATA, AFTER QC (1) vertical profiles

Experts meeting – SPLIT 19June /n NO2-NO3 BEFORE AND AFTER QC

Experts meeting – SPLIT 19June /n NO2 – NO3 DATA, AFTER QC (2) vertical profiles Flag value NOx (Nitrate+Nitrite) [µmol/l] 0 (No QC)0 1 (Good) (Doubtful)222 4 (Bad)251 5 (Changed)5 6 (below detection limit)924 Total detection limits 0.24 µmol/l

Experts meeting – SPLIT 19June /n NOX DISTRIBUTION

Experts meeting – SPLIT 19June /n Parameters Nb stations Nb measurements AMON (µmol/l) AMOW (µmol/kg)77783 Ammonium (µg/l)120 Total AMMONIUM DATA, BEFORE QC (1) vertical profiles, received as

Experts meeting – SPLIT 19June /n Output parameter for product = – Ammonium [µmol/l] Conversions – Conversion from µmol/kg  µmol/l: using ODV conversion Any µmol/kg to Any µmol/l – Conversion from µg/l  µmol/l: Ammonium/ assuming it is N µg/l AMMONIUM DATA, BEFORE QC (2)

Experts meeting – SPLIT 19June /n AMMONIUM DATA, AFTER QC (1) vertical profiles

Experts meeting – SPLIT 19June /n AMMONIUM BEFORE AND AFTER QC

Experts meeting – SPLIT 19June /n AMMONIUM DATA, AFTER QC (2) 4 994vertical profiles Flag value AMON [µmol/l] 0 (No QC)0 1 (Good) (Doubtful)97 4 (Bad)507 6 (below detection limit)2 223 Total detection limits 0.7 µmol/l

Experts meeting – SPLIT 19June /n AMON DISTRIBUTION

Experts meeting – SPLIT 19June /n Parameters Nb stations Nb measurements PHOS (µmol/l) PHOW (µmol/kg)78998 Phosphate (µg/l) Total PHOSPHATE DATA, BEFORE QC (1) 9173 vertical profiles, received as

Experts meeting – SPLIT 19June /n Output parameter for product – Phosphate [µmol/l] Conversions – Conversion from µmol/kg  µmol/l: using ODV conversion Any µmol/kg to Any µmol/l – Conversion from µg/l: Phosphate/ assuming it is P in µg/l PHOSPHATE DATA, BEFORE QC (2)

Experts meeting – SPLIT 19June /n PHOSPHATE DATA, AFTER QC (1) vertical profiles

Experts meeting – SPLIT 19June /n PHOSPHATE BEFORE AND AFTER QC

Experts meeting – SPLIT 19June /n PHOSPHATE DATA, AFTER QC (2) vertical profiles Flag value PHOS [µmol/l] 0 (No QC)0 1 (Good) (Doubtful)88 4 (Bad)307 6 (below detection limit)361 Total detection limits 0.03 µmol/l

Experts meeting – SPLIT 19June /n PHOS DISTRIBUTION

Experts meeting – SPLIT 19June /n Parameters Nb stations Nb measurements SLCA (µmol/l) SLCW (µmol/kg) Silicate (µg/l) Total SILICATE DATA, BEFORE QC (1) vertical profiles, received as

Experts meeting – SPLIT 19June /n Output parameter for product – Silicate [µmol/l] Conversions – Conversion from µmol/kg  µmol/l: using ODV conversion Any µmol/kg to Any µmol/l – Conversion from µg/l  µmol/l : Silicate/ assuming it is Si in µg/l SILICATE DATA, BEFORE QC (2)

Experts meeting – SPLIT 19June /n SILICATE DATA, AFTER QC (1) vertical profiles

Experts meeting – SPLIT 19June /n SILICATE BEFORE AND AFTER QC

Experts meeting – SPLIT 19June /n SILICATE DATA, AFTER QC (2) vertical profiles Flag value SLCA [µmol/l] 0 (No QC)0 1 (Good) (Doubtful)639 4 (Bad) (below detection limit)47 Total detection limits 0.1 µmol/l 0.3

Experts meeting – SPLIT 19June /n SLCA DISTRIBUTION

Experts meeting – SPLIT 19June /n Data coverage: for Ammonium, Silicate, Nitrate – What is a « reasonable » coverage for a product? – How to make the mask? New topography or masked area? Data with QF=6 (value below detection): how to deel with? – put value to limit – put value to 0 How to deal with estuaries? DIVA PRODUCTS – PROBLEMS FACED