EMODnet Chemistry 3 Data inventory in the Baltic Sea Annual meeting, Roskilde 6-7 February 2018 Magnus Wenzer SMHI magnus.wenzer@smhi.se

New border with North Sea Old border (”bridges”) New border (MSFD) Have to pay attention when making the Diva products! Annual meeting, Roskilde 6-7 February 2018

About 5 000 restricted profiles Ocean depth profiles EDMO_code Country Organization Depth O2 NO3 NO2 NO2+NO3 PO4 SiO4 NH4 Chl-a Alk totN totP pH 729 Denmark Aarhus University 109 020 97 438 6 494 6 466 38 799 43 410 32 599 39 486 43 736 - 41 737 42 999 730 ICES 2 414 2 210 507 477 640 594 70 223 20 347 19 713 Estonia TTU 2 519 1 928 125 2 029 2 231 2 104 2 004 1 962 2 284 2 115 1104 Finland SYKE 11 417 939 39 6 948 6 896 5 225 847 10 712 13 6 119 935 929 1725 FMI 19 029 16 054 6 310 6 493 7 315 7 017 6 361 1 016 6 348 401 6 199 96 Germany NODC 6 353 4 573 4 948 1 389 4 571 3 784 2 444 907 2 529 2 329 100 IOW 9 3 3234 PANGAEA 2 095 1 782 97 698 Latvia LHEI 3 523 2 375 1 568 1 576 1 578 1 577 1 575 1 006 1 574 1 582 681 Russia NODC RIHMI-WDC 1 440 566 676 1 239 399 353 319 473 1 337 924 RSHU 172 545 Sweden SMHI 29 607 26 076 20 450 15 538 23 922 17 873 18 732 12 004 5 533 21 783 23 079 8 717 Summa   187 598 154 987 33 235 32 541 55 845 91 908 71 172 71 969 70 550 6 901 82 377 72 137 20 898 Including: Pressure profiles Profiles with min and max depth (average) About 5 000 restricted profiles Annual meeting, Roskilde 6-7 February 2018

ODV files - issues Crucial Mismatch between header and semantic header Missing parameters in header Missing tabs in line (line is discarded) We are getting better! Not crucial Old labels: P011, P061 Parameter names Empty columns Missing quality flag for Depth Incorrect primary variable LOCAL_CDI_ID duplicates Annual meeting, Roskilde 6-7 February 2018

Thoughts, ideas and questions How to handle (integrated) chlorophyll? Also in EMODnet Biology Often represented with min and max depth (integrated) . Included in main collection by taking the average depth Suggestion to make Diva-product with all data between 0-10 meters (set depth to 0). NO3 or NO2+NO3? NO3 is expected to be NO2+NO3 if NO2 is not present This should be clearer It’s preferable to include salinity and temperature in the ODV files. 6-year average for Diva products (MSFD) Will the coverage be enough? Annual meeting, Roskilde 6-7 February 2018

Spatial coverage comparison Chl-a Jun-Aug 2002-2011 Chl-a Jun-Aug 2006-2011 Annual meeting, Roskilde 6-7 February 2018

Sampling density comparison Chl-a Jun-Aug 2002-2011 Chl-a Jun-Aug 2006-2011 8028 4299 Annual meeting, Roskilde 6-7 February 2018

Spatial coverage comparison PO4 Dec-Feb 2002-2011 PO4 Dec-Feb 2006-2011 6399 3156 Annual meeting, Roskilde 6-7 February 2018