1. EDMODnet Chemistry - DIVA Products from the Baltic Region Örjan Bäck, Lotta Fyrberg, Martin Hansson, Magnus Wenzer Swedish Meteorological and Hydrological Institute - SMHI

2. The Baltic Sea region

3. Dataset for the Baltic Sea First dataset (April 2014) Current dataset (October 2014) Increase Total number of profiles39 37257 05517 683 (45%) Total number of profiles (1990-) 30 80445 76114 957 (48%) Total number of profiles after QC. ?56 850- Number of duplicates0182-

4. Distribution of ODV-files

5. ODV Quality control of dataset  Problems from the first dataset are still there  Data has not been updated?  New (updated) CDIs has not been sent to MARIS?  New problem with duplicates  Many depths with flag 0  Type of problems:  No depth variable  Wrong position (0,0)  Duplicates  Value below 0  “Bad” profiles

6. Nitrate

7. Phosphate

8. Silicate

9. DIVA input  Periods: Ten years running average from 1960 (start) to 2014 (end)  Seasons: Spring (Mars - May) Summer (June - August) Autumn (September - November) Winter (December - February)  Variables: Nitrate Phosphate Silicate  Depths: HELCOM standard depths  Quality flags: 1, 2, 6

10. DIVA setup  Background field: Data from all years for each season  Correlation length: 0.7 (based on parameter estimation and reliability of the result)  Signal to noise: 1.0 (based on parameter estimation and reliability of the result)  Clever poor mans error (flag 111)  Log transformation (for analysis and background fields)

11. DIVA status  Analysis made for spring, summer and autumn  Need to rerun winter season (extraction did not include December values)  Need to rerun nitrate (in progress)  XML generation still to come

12. Diva examples, Phosphate, Spring, 0m 1990 - 19991992 - 2001 1994 - 2003

13. Diva examples, Phosphate, Summer, 0m 1990 - 19991992 - 2001 1994 - 2003

14. Diva examples, Phosphate, Autumn, 0m 1990 - 19991992 - 2001 1994 - 2003

15. Diva examples, Silicate, Spring, 0m 1990 - 19991992 - 2001 1994 - 2003

16. Diva examples, Silicate, Summer, 0m 1990 - 19991992 - 2001 1994 - 2003

17. Diva examples, Silicate, Autumn, 0m 1990 - 19991992 - 2001 1994 - 2003

18. Future work (planed time)  Rerun NO3 and winter season in DIVA (within a couple of weeks)  Send ODV Spreadsheet Files to MARIS(during summer)  Upload nc-files to ftp(during summer)  Create XML-files, divadoxml-gui (during summer)  Upload XML-files to Sextant(during summer)  Create and deliver DOI(during summer)  Work on additional parameters(after summer)  Feedback to originators (depends on priority)