The Baltic Sea a century ago – a reconstruction from model simulations, verified by observations.
2008 (English)In: Journal of Marine Systems, Vol. 74, 485-494 p.Article in journal (Refereed) Published
“Pre-industrial” trophic conditions in the Baltic Sea were simulated with SANBALTS (Simple As Necessary BAltic Long-Term large Scale) model. External nutrient inputs to the major basins of the Baltic Sea a century ago were reconstructed from various literature and data sources. The reconstructed input of total nitrogen was less than a half and that of total phosphorus was about a third of their contemporary values. The simulated “pre-industrial” conditions are validated by comparison to actual historical data on the water transparency, oxygen concentration, primary production, and net sediment accumulation. The “pre-industrial” trophic state could have been more phosphorus limited than today because simulated basin-wide annual averages of dissolved inorganic phosphorus concentrations of 0.06–0.3 µM P are about 40–80% of their present day values, while dissolved inorganic nitrogen concentrations of 2–4 µM N are almost the same as today or even slightly higher.
Place, publisher, year, edition, pages
2008. Vol. 74, 485-494 p.
IdentifiersURN: urn:nbn:se:su:diva-15622DOI: doi:10.1016/j.jmarsys.2008.03.008ISI: 000261256100030OAI: oai:DiVA.org:su-15622DiVA: diva2:182142
Baltic Nest Institute, Stockholm University, SE 10691, Stockholm, Sweden
Baltic Sea Research Institute, Seestrasse 15, DE 18119, Warnemünde, Germany
Department of Applied Environmental Science, Stockholm University, SE-10691 Stockholm, Sweden2008-12-072008-12-072011-01-10Bibliographically approved