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LOHAFEX: An Indo-German iron fertilization experiment
Date:1/13/2009

periment is an order of magnitude lower than natural iron levels in coastal marine waters. This concentration is so low that most analytical laboratories in the world cannot measure it. The fertilized waters, although located offshore, have been previously in contact with the coast of South America and South Georgia and contain coastal plankton species that are adapted to high iron concentrations. The size of the fertilized patch is considerably smaller than the impact of melting icebergs that may leave a swath of several hundred kilometers breadth of enhanced iron concentrations. Therefore LOHAFEX will contribute legitimate and much needed scientific research to the controversial discussions on ocean fertilization.

Alfred Wegener Institute and NIO are jointly conducting LOHAFEX, together with scientists from nine other institutions in India, Europe and Chile. Prof. Victor Smetacek (Germany) and Dr. Wajih Naqvi (India) are co-Chief Scientists. The experiment is part of the Memorandum of Understanding between the two Institutes signed by the heads of their respective parent organisations, the Helmholtz Association, Germany, and the Council of Scientific and Industrial Research, India, in the presence of the Chancellor of the Federal Republic of Germany Dr Angela Merkel and the Prime Minister of India Dr Manmohan Singh in New Delhi on the 30th October 2007. Planning for the experiment has been underway since 2005.

The development and impact of the phytoplankton bloom on its environment and the fate of the carbon sinking out of it to the deep ocean will be studied in great detail with state-of-the-art methods by integrated teams of biologists, chemists and physicists. The design of the experiment is the same as that of previous experiments but more parameters will be monitored and the experiment will last longer. Five previous experiments carried out in the Southern Ocean, including two conducted from RV Polarstern in 2000 and 2004, have induced phy
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Contact: Folke Mehrtens
folke.mehrtens@awi.de
49-471-483-12007
Helmholtz Association of German Research Centres
Source:Eurekalert  

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