The Development of a Buoy-Mounted Instrument Capable of Measuring the Concentrations of Dissolved Fe (II) and Fe (III) in Rainwater

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This instrumentation development award provides funds to develop a buoy-mounted instrument that is capable of measuring the rain water concentrations of dissolved Fe(II) and Fe(III) in an autonomous and real-time manner. This data will allow scientists to quantify the wet deposition of iron in the oceans. The proposed research is joint Dr. Robert Byrne at the University of South Florida, and involves coupling a long pathlength Liquid Core Waveguide absorbance spectrometer developed at USF to the buoy-mounted rainwater collector, aerosol sampler and meteorological sensors developed at WHOI. The system will be tested on shore and then on a buoy moored off Woods Hole, MA in the summer of 2000.