An integrated biogeochemical model system for the Baltic Sea

摘要: The Swedish Meteorological and Hydrological Institute (SMHI) is developing an integrated biogeochemical model system for the Baltic Sea. It consists of three coupled models; a marine biogeochemical-hydrodynamical (SCOBI), continuous riverine nitrogen transport (HBV-N) atmospheric chemical (MATCH). supplied with tool presentation analysis. SCOBI one-dimensional high vertical resolution. Horizontal variations are taken into account by dividing area smaller boxes. includes primary phytoplankton production, fixation secondary zooplankton production. Nitrogen load from land obtained through HBV-N model, which simulates organic inorganic separately in catchments. based on hydrological HBV, subbasin runoff simulated daily basis. calibrated validated against measured concentrations water flow rivers. input oxidised reduced annual assessments carried out MATCH-Sweden modelling system. combines calculations, using observations air- precipitation chemistry data to give detailed mapping deposition compounds over Sweden. Supplemented monitoring specific interest, makes useful environmental protection analyses; e.g. interpretation as well creating scenarios studies effects changes nutrient loads.