Evgeny Vyazilov RIHMI-WDC EMODNET Chemistry 2 Annual Meeting, June 17-18 2014, Split, Croatia WP1: Data collection and metadata compilation in Baltic Sea Partner contribution: RIHMI-WDC Partner contribution: RIHMI-WDC Evgeny Vyazilov RIHMI-WDC

Baltic Sea: general information Period: 1970 -1986; Size: 819 cruises, 29073 oceanographic stations for chemistry; The main sources: AARI, NW department HMS, AtlRIFO; Ships: DAMBA-1, KOMSOMOLETZ AZOVA, AKADEMIK SHULEYKIN, PROFESSOR MULTANOVSKIY, RUDOLF SAMOYLOVITCH, TSIKLON, VOLNA Number of profiles for hydrochemical parameters (total) T S O2 pH Alk PO4 Ptot SiO3 NO2 NO3 Ntot 29073 26331 20082 8090 15627 8410 8691 10458 7372 4511

Baltic Sea: temporal data coverage

Baltic Sea: spatial data coverage Total of oceanographic stations Alkalinity Total of oceanographic stations Phosphorus

Baltic Sea: after 1990 13 cruises Number of profiles for hydrochemical parameters (13 cruises) T S O2 pH Alk PO4 Ptot SiO3 NO2 NO3 NTOT 564 486 238 543 285 447 528 393 265 In 2013-2014 the 564 CDIs files have been prepared