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Scenarios of Nutrient-Related Solute Loading and Transport Fate from Different Land Catchments and Coasts into the Baltic Sea
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering. Stockholm Univ, Dept Phys Geog, S-10691 Stockholm, Sweden..
KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering.
Stockholm Univ, Dept Phys Geog, S-10691 Stockholm, Sweden..
2019 (English)In: Water, ISSN 2073-4441, E-ISSN 2073-4441, Vol. 11, no 7, article id 1407Article in journal (Refereed) Published
Abstract [en]

This study uses controlled numerical experimentation to comparatively simulate and investigate solute transport and concentration responses and patterns in the Baltic Sea for various solute releases from the land through two different coastal cases. These cases are the Swedish Kalmar County coast and the Polish coast of the Vistula River outlet. For equivalent solute releases, the coastal flow conditions and their interactions with main marine currents determine the local coastal solute spreading, while the overall spreading over the Baltic Sea is similar for the two coastal cases, despite their large local differences. For nutrient-proportional solute release scenarios, the highly-populated Vistula catchment yields much greater total, but smaller per-capita nutrient impacts, in the Baltic Sea than the Kalmar County catchment. To be as low as from the Vistula catchment, the per-capita nutrient contribution from Kalmar County would have to be reduced much more than required on average per Swedish inhabitant by the Baltic Sea Action Plan. This highlights an unfairness issue in the per-capita distribution of nutrient load allowance among the Baltic countries, which needs to be considered and handled in further research and international efforts aimed to combat the Baltic Sea eutrophication.

Place, publisher, year, edition, pages
MDPI , 2019. Vol. 11, no 7, article id 1407
Keywords [en]
solute transport, Baltic Sea, nutrient loads, coastal concentrations, marine concentrations, Baltic Sea Action Plan, FVCOM simulations
National Category
Oceanography, Hydrology and Water Resources
Identifiers
URN: urn:nbn:se:kth:diva-257466DOI: 10.3390/w11071407ISI: 000480632300092OAI: oai:DiVA.org:kth-257466DiVA, id: diva2:1347075
Note

QC 20190830

Available from: 2019-08-30 Created: 2019-08-30 Last updated: 2019-08-30Bibliographically approved

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Chen, YuanyingCvetkovic, Vladimir

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