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Transport of fresh and resuspended particulate organic material in the Baltic Sea - a model study
SMHI, Research Department, Oceanography.ORCID iD: 0000-0003-4052-045X
SMHI, Research Department, Oceanography.ORCID iD: 0000-0001-7413-7497
SMHI, Research Department, Oceanography.
SMHI, Research Department, Oceanography.ORCID iD: 0000-0003-1068-746X
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2011 (English)In: Journal of Marine Systems, ISSN 0924-7963, E-ISSN 1879-1573, Vol. 87, no 1, 1-12 p.Article in journal (Refereed) Published
Abstract [en]

A fully coupled high-resolution 3-dimensional biogeochemical-physical ocean model including an empirical wave model was used to investigate the long-term average (1970-2007) distributions and transports of resuspended matter and other types of suspended organic matter in the Baltic Sea. Modelled bottom types were compared to observations and the results showed that the model successfully managed to capture the horizontal, as well as the vertical, distribution of the different bottom types: accumulation, transport and erosion bottoms. The model also captured well the nutrient element contents in the sediments. On average the largest contribution of resuspended organic carbon to the transport of total organic carbon is found at erosion and transport bottoms. Although the relative transport of resuspended organic carbon at deeper accumulation bottoms in general is low (< 10% of total), the central parts of the sub-basins act on average as sinks that import organic matter while the more shallow areas and the coastal regions acts as sources of organic carbon in the water column. This indicates that the particulate organic matter produced in erosion and transport areas might be kept in suspension long enough to be transported and settle in less energetic areas, i.e. on accumulation bottoms. (C) 2011 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2011. Vol. 87, no 1, 1-12 p.
Keyword [en]
Resuspension, Model study, Ecological modelling, Organic matter transport, Sediment type, Critical shear stress, Baltic Sea, Baltic Proper
National Category
Oceanography, Hydrology, Water Resources
Research subject
Oceanography
Identifiers
URN: urn:nbn:se:smhi:diva-517DOI: 10.1016/j.jmarsys.2011.02.005ISI: 000291241600001OAI: oai:DiVA.org:smhi-517DiVA: diva2:806043
Available from: 2015-04-17 Created: 2015-04-15 Last updated: 2016-04-12Bibliographically approved

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Almroth-Rosell, ElinEilola, KariHordoir, RobinsonMeier, Markus
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