Physical controls on the location and initiation of a regular phytoplankton bloom north of the Crozet Plateau

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• Hugh Venables, BAS
• Tuesday 02 October 2007, 16:00-17:00
• British Antarctic Survey.

If you have a question about this talk, please contact Deb Shoosmith.

Open to non-BAS; please contact Deb Shoosmith (drsho@bas.ac.uk or 221702) if you would like to attend.

Iron is released into the surface waters around the Crozet Plateau (50°E, 46°S) through natural processes. This alleviates the main control on phytoplankton in the Southern Ocean and causes a large phytoplankton bloom. My PhD involved studying this through remotely sensed data, Argo float trajectories and profiles and in situ cruise data as part of the CROZEX program. After a review of the importance of iron in the Southern Ocean, the difficulties of measuring it and previous artificial release experiments I will present results relating the circulation, iron supply and light availability to the spatial structure and temporal development of the bloom.

This talk is part of the British Antarctic Survey series.

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