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Developing standards for dissolved iron in seawater

S. Johnson Kenneth 1 Virginia Elrod 1 Steve Fitzwater 1 Joshua Plant 1 Edward Boyle 2 Bridget Bergquist 2 Kenneth Bruland 3 Ana Aguilar-Islas 3 Kristen Buck 3 Maeve Lohan 3 Geoffrey Smith 3 Bettina Sohst 3 Kenneth Coale 4 Michael Gordon 4 Sara Tanner 4 Chris Measures 5 James Moffett 6 Katherine Barbeau 7 Andrew King 7 Andrew R. Bowie 8 Zanna Chase 9 Jay Cullen 10 Patrick Laan 11 William Landing 12 Jeffrey Mendez 13 Angela Milne 14 Hajime Obata 15 Lia Ossiander 16 Géraldine Sarthou 17, 18 Peter Sedwick 19 Stan van den Berg 20 Luis Laglera Baquer 20 Feng Wu Jing 21 Yihua Cai 21
1 MBARI - Monterey Bay Aquarium Research Institute
2 MIT - Massachusetts Institute of Technology
3 University of California
4 Moss Landing Marine Laboratories
5 UHM - University of Hawai‘i [Mānoa]
6 WHOI - Woods Hole Oceanographic Institution
7 SIO - Scripps Institution of Oceanography
8 UTAS - University of Tasmania [Hobart, Australia]
9 College of Oceanic and Atmospheric Sciences [Corvallis]
10 UVIC - University of Victoria [Canada]
11 NIOZ - Royal Netherlands Institute for Sea Research
12 FSU - Florida State University [Tallahassee]
13 CALTECH - California Institute of Technology
14 School of Earth, Ocean and Environmental Sciences [Plymouth]
15 UTokyo - The University of Tokyo
16 University of Washington [Seattle]
17 LEMAR - Laboratoire des Sciences de l'Environnement Marin (LEMAR)
18 UEB - Université européenne de Bretagne - European University of Brittany
19 BBSR - Bermuda Biological Station for Research
20 University of Liverpool
21 West Coast and Polar Regions Undersea Research Center
Abstract : In nearly a dozen open-ocean fertilization experiments conducted by more than 100 researchers from nearly 20 countries, adding iron at the sea surface has led to distinct increases in photosynthesis rates and biomass. These experiments confirmed the hypothesis proposed by the late John Martin [Martin, 1990] that dissolved iron concentration is a key variable that controls phytoplankton processes in ocean surface waters However, the measurement of dissolved iron concentration in seawater remains a difficult task [Bruland and Rue, 2001] with significant interlaboratory differences apparent at times. The availability of a seawater reference solution with well-known dissolved iron (Fe) concentrations similar to open-ocean values, which could be used for the calibration of equipment or other tasks, would greatly alleviate these problems [National Research Council (NRC), 2002
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S. Johnson Kenneth, Virginia Elrod, Steve Fitzwater, Joshua Plant, Edward Boyle, et al.. Developing standards for dissolved iron in seawater. Eos, Transactions American Geophysical Union, American Geophysical Union (AGU), 2007, 88 (11), pp.131. ⟨10.1029/2007EO110003⟩. ⟨hal-00675693⟩

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