1. Expertsmeeting SPLIT, Croatia 17-18 June 2014 REPORT ON ATLANTIC AREA With IFREMER, RIHMI-WDC, IHPT and IEO contributions

2. Experts meeting – SPLIT 19June 2014 2/n Data received in two separated sets – Data collected by MARIS robot (8 757 CDIs) 8 489 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!

3. Experts meeting – SPLIT 19June 2014 3/n DATA INVENTORY (2) EDMO CodeNameCountryNb of CDIs 353IEOSpain5 518 486IFREMERFrance2 358 590IHPTPortugal1 143 612IMRNorway11 681RIHMIRussian Federation2 507 Total11 537

4. Experts meeting – SPLIT 19June 2014 4/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

5. Experts meeting – SPLIT 19June 2014 5/n Nitrate and Nitrite Ammonium Phosphate Silicate NUTRIENTS PARAMETERS

6. Experts meeting – SPLIT 19June 2014 6/n Parameters Nb stations Nb measurements NTRI+NTRA (µmol/l)15397973 NTRI (µmol/l)578135748 NTRA (µmol/l)566343531 NTAW (µmol/kg)78998 NTIW (µmol/kg)78826 Nitrite (µg/l)1461109 Nitrate (µg/l)78225 Total1026890140 NO2 – NO3 DATA, BEFORE QC (1) 10 268 vertical profiles, received as

7. Experts meeting – SPLIT 19June 2014 7/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+NO3/14.00670 NO2 – NO3 DATA, BEFORE QC (2)

8. Experts meeting – SPLIT 19June 2014 8/n NO2-NO3 DATA, AFTER QC (1) 7 272 vertical profiles

9. Experts meeting – SPLIT 19June 2014 9/n NO2-NO3 BEFORE AND AFTER QC

10. Experts meeting – SPLIT 19June 2014 10/n NO2 – NO3 DATA, AFTER QC (2) 7 272 vertical profiles Flag value NOx (Nitrate+Nitrite) [µmol/l] 0 (No QC)0 1 (Good)46 188 3 (Doubtful)222 4 (Bad)251 5 (Changed)5 6 (below detection limit)924 Total47 590 3 detection limits 0.24 µmol/l 0.5 0.7

11. Experts meeting – SPLIT 19June 2014 11/n NOX DISTRIBUTION

12. Experts meeting – SPLIT 19June 2014 12/n Parameters Nb stations Nb measurements AMON (µmol/l) 5 25527 511 AMOW (µmol/kg)77783 Ammonium (µg/l)120 Total5 33328 314 AMMONIUM DATA, BEFORE QC (1) 5 333 vertical profiles, received as

13. Experts meeting – SPLIT 19June 2014 13/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/14.00670 assuming it is N µg/l AMMONIUM DATA, BEFORE QC (2)

14. Experts meeting – SPLIT 19June 2014 14/n AMMONIUM DATA, AFTER QC (1) 4 994 vertical profiles

15. Experts meeting – SPLIT 19June 2014 15/n AMMONIUM BEFORE AND AFTER QC

16. Experts meeting – SPLIT 19June 2014 16/n AMMONIUM DATA, AFTER QC (2) 4 994vertical profiles Flag value AMON [µmol/l] 0 (No QC)0 1 (Good)23 119 3 (Doubtful)97 4 (Bad)507 6 (below detection limit)2 223 Total25 946 3 detection limits 0.7 µmol/l 0.96 1.0

17. Experts meeting – SPLIT 19June 2014 17/n AMON DISTRIBUTION

18. Experts meeting – SPLIT 19June 2014 18/n Parameters Nb stations Nb measurements PHOS (µmol/l) 6 59440 196 PHOW (µmol/kg)78998 Phosphate (µg/l)250138328 Total9 17379 522 PHOSPHATE DATA, BEFORE QC (1) 9173 vertical profiles, received as

19. Experts meeting – SPLIT 19June 2014 19/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/30.97376 assuming it is P in µg/l PHOSPHATE DATA, BEFORE QC (2)

20. Experts meeting – SPLIT 19June 2014 20/n PHOSPHATE DATA, AFTER QC (1) 8 832 vertical profiles

21. Experts meeting – SPLIT 19June 2014 21/n PHOSPHATE BEFORE AND AFTER QC

22. Experts meeting – SPLIT 19June 2014 22/n PHOSPHATE DATA, AFTER QC (2) 8 832 vertical profiles Flag value PHOS [µmol/l] 0 (No QC)0 1 (Good)76 170 3 (Doubtful)88 4 (Bad)307 6 (below detection limit)361 Total26 143 3 detection limits 0.03 µmol/l 0.07 0.2

23. Experts meeting – SPLIT 19June 2014 23/n PHOS DISTRIBUTION

24. Experts meeting – SPLIT 19June 2014 24/n Parameters Nb stations Nb measurements SLCA (µmol/l) 7 19549 950 SLCW (µmol/kg) 78992 Silicate (µg/l) 3383 932 Total7 61154 874 SILICATE DATA, BEFORE QC (1) 7 611 vertical profiles, received as

25. Experts meeting – SPLIT 19June 2014 25/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/28.08550 assuming it is Si in µg/l SILICATE DATA, BEFORE QC (2)

26. Experts meeting – SPLIT 19June 2014 26/n SILICATE DATA, AFTER QC (1) 7 071 vertical profiles

27. Experts meeting – SPLIT 19June 2014 27/n SILICATE BEFORE AND AFTER QC

28. Experts meeting – SPLIT 19June 2014 28/n SILICATE DATA, AFTER QC (2) 7 071 vertical profiles Flag value SLCA [µmol/l] 0 (No QC)0 1 (Good)48 251 3 (Doubtful)639 4 (Bad)1 246 6 (below detection limit)47 Total50 183 2 detection limits 0.1 µmol/l 0.3

29. Experts meeting – SPLIT 19June 2014 29/n SLCA DISTRIBUTION

30. Experts meeting – SPLIT 19June 2014 30/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