Rethinking Oceanic Overturning in the Nordic Seas

Interannual variability in Nordic seas primary production

Phytoplankton represents the primary trophic level in marine pelagic ecosystems, through which most biological material produced by photosynthesis is further channelled through the foodweb via grazing by zooplankton. Therefore, the level and variability of primary production is believed to be an important factor for fish recruitment and growth. The Nordic seas are important feeding areas for la...

Nordic Seas and Arctic Ocean CFC data in CARINA

E. Jeansson1, K. A. Olsson2,*, T. Tanhua3, and J. L. Bullister4 1Bjerknes Centre for Climate Research, Uni Research, Bergen, Norway 2Department of Chemistry, University of Gothenburg, Göteborg, Sweden 3Leibniz-Institut für Meereswissenshaften, Marine Biogeochemie, Kiel, Germany 4Pacific Marine Environmental Laboratory, NOAA, Seattle, Washington, USA *present address: Volvo Technology Corporatio...

Atmospheric and oceanic freshwater transport during weak Atlantic overturning circulation

Oceanic and atmospheric freshwater transports are analyzed in a numerical experiment where induced freshwater in the North Atlantic slowed the thermohaline circulation (THC). During times of weak Atlantic overturning circulation, it is found that the Intertropical Convergence Zone moves southward and trade winds at tropical latitudes increase, resulting in enhanced water vapor export out of the...

Contrasting trends in North Atlantic deep-water formation in the Labrador Sea and Nordic Seas during the Holocene

[1] The Holocene North Atlantic deep-water formation is studied in a 9,000-year long simulation with a coupled climate model of intermediate complexity, forced by changes in orbital forcing and atmospheric trace gas concentrations. During the experiment, deep-water formation in the Nordic Seas is reduced due to an enhanced influx of sea ice from the Central Arctic, decreasing both surface salin...

Late Eemian warming in the Nordic Seas as seen in proxy data and climate models