www.sams.ac.uk [email protected]c.uk Nutrient fluxes in the Nutrient fluxes in the eastern North Atlantic eastern North Atlantic Clare Johnson (1) , Stuart Cunningham (1) , Penny Holliday (2) and Stefan Gary (1) (1) Scottish Association of Marine Science (2) National Oceanography Centre, Southampton
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Nutrient fluxes in the eastern North Atlantic Clare Johnson (1), Stuart Cunningham (1), Penny Holliday (2) and Stefan Gary.
Mean geostrophic transports ( ) Holliday et al., accepted, JGR, early view. ≈ total transports (difference between geostrophic-derived surface velocities and altimeter-derived surface velocities minimised)
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• Nutrient distribution in eastern North Atlantic shows water mass structure as well as non-conservative behaviour.
• Eastern North Atlantic net source of nutrients to Nordic Seas and Arctic Ocean.
• First look mean values 1997 to 2013: NO2+3 +42.8 kmol s-1, PO4 +2.5 kmol s-1, SiO3 +11.6 kmol s-1 (likely to be slightly on high side).
SummarySummary
Future workFuture work• More sophisticated nutrient transport calculation.
• Calculation of variability around mean transports.
• Produce time-series of volume and nutrient transports between 1997 and present.
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The research leading to these results has received funding from the European Union 7th Framework Programme (FP7 2007-2013), under grant agreement n.308299NACLIM www.naclim.eu