The National Centre for Research and Development



CORE; Programme area: climate change; ID: 201985



Project title: Application of in situ observations, high frequency radars, and ocean color, to study suspended matter, particulate carbon, and dissolved organic carbon fluxes in coastal waters of the Barents Sea




Project Promoter: University of Szczecin


Polish partners: -


Norwegian Partners: Institute of Marine Research


Project cost (EUR): 941 141


Grant amount (EUR): 941 141

Duration: 43 months






Project summary:

Arctic is undergoing climate-induced changes, but many aspects are yet not fully understood. There is limited knowledge about suspended and dissolved matter fluxes transported from coastal regions into the oceans. The land/sea interface is environmentally important and sensitive to climate change. Biogeochemical material entering the oceans passes through this interface, but little is known about the efficiency of this transport. We propose to study the environmental feedbacks through an interdisciplinary project with innovative in situ observations. Coastal experiment will use equiped with measuring apparatus research boat and high frequency radars to derive maps of water temperature, salinity, currents, fluorescence, and optical backscattering. The interpretation of these data in terms of suspended and dissolved matter concentrations will be done by ‘calibrations’ using water samples. These data and water currents will allow us to estimate fluxes. We will also derive regional ocean color (OC) algorithms for quantitative interpretation of OC. Turbid plumes associated with fjord water transported into the ocean are persistently visible on OC imagery of coastal waters. Plumes can be mapped using OC data, but only if there are local quantitative OC algorithms, because global OC algorithms do not perform sufficiently well in Case 2 waters. Our in situ experiment will allow us to derive such regional algorithms. We will use these algorithms to trace turbid water plumes. Data from glider, boat, and radars will allow us to derive links between surface characteristics of the plumes (dimensions, surface concentrations of materials) and fluxes out from the fjord. We will analyze historical satellite imagery to assess multiyear trends in coastal plumes and fluxes and study feedbacks between weather and hydrography. Understanding of these feedbacks will help with predictions of their sensitivity to future trends in the Arctic.


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