SEASONAL IRON DISTRIBUTIONS AND SPECIATION IN THE ATLANTIC OCEAN S.J. Ussher 1*, E.P. Achterberg 2 and P. J. Worsfold 1 1. School of Earth, Ocean and Environmental.

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Presentation transcript:

SEASONAL IRON DISTRIBUTIONS AND SPECIATION IN THE ATLANTIC OCEAN S.J. Ussher 1*, E.P. Achterberg 2 and P. J. Worsfold 1 1. School of Earth, Ocean and Environmental Sciences (SEOES), University of Plymouth, Drake Circus, Plymouth, UK 2. National Oceanography Centre, University of Southampton, European Way, Southampton, UK

Atlantic Meridional Transect (AMT) , 17 research cruises. Biannual-annual time-series Data available- British Oceanographic Data Centre (BODC). Southampton, UK - Capetown, South Africa, Sept-Oct 2004 (Upwelling Data Excluded) Capetown, South Africa - Falmouth, UK May-Jun 2005 AMT 15AMT 16 Glasgow, UK – Port Elizabeth, South Africa, Oct- Nov 2005 AMT 17

Surface water (5 m) AMT Surface dissolved Fe (<0.2 um) Temperature (ºC) Salinity DFe (nM) Latitude (ºN) AMT 15 Sept-Oct 2004AMT 16 May-Jun 2005AMT 17 Oct- Nov 2007

AMT 16 Dissolved iron data (May - June 2005, m, 35ºS-50ºN)

ACKNOWLEDGEMENTS Personal thanks Matthieu Waeles and Ed Mawji Officers and crew of the RSS Discovery UKORS staff at NOC British Oceanographic Data Centre Natural Environment Research Council for funding this project under research grant NER/A/S/2003/ Atlantic Meridional Transect Consortium (NER/0/5/2001/00680).