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Energy, Climate change, Environment

New update of data product “Sedimentation rates” available

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EMODnet Geology Sedimentation Rates Map

EMODnet Geology updated their sedimentation rates data product. The data is compiled from all available information on the rate of sedimentation in European maritime areas, provided by EMODnet project partners from their national waters (incl. EEZ).

The information on sedimentation rates for recent sediments is presented as point-source information. The focus is on the present-day sedimentation rates. That means sediment accumulations to the seabed over the past decades, since AD 1900 or so. Estimations of modern sedimentation rates (centimeters/year) can be based, for example, on established historical records of anthropogenic radionuclides (e.g. 137Cs and 241Am), lead (Pb) and stable lead isotope (206/207Pb ratios) as well as on data based on annually laminated sediments. Sedimentation rates data consists of more than 1500 data points at this moment.

Knowledge on sediment accumulation rates in a specific area provides a better understanding of geochemical processes and benthic organisms functioning. It is important, also, for the maintenance of shipping lanes and the stability of offshore constructions like wind farms or oil platforms. The data of the sedimentation rates are freely available for visualisation and download on the EMODnet Geology portal.