Details of Award
NERC Reference : NE/B000176/1
Iron speciation in seawater.
Grant Award
- Principal Investigator:
- Professor C Van Den Berg, University of Liverpool, Earth Surface Dynamics
- Co-Investigator:
- Professor GA Wolff, University of Liverpool, Earth, Ocean and Ecological Sciences
- Grant held at:
- University of Liverpool, Earth Surface Dynamics
- Science Area:
- Marine
- Overall Classification:
- Marine
- ENRIs:
- Natural Resource Management
- Global Change
- Science Topics:
- Biogeochemical Cycles
- Ocean - Atmosphere Interact.
- Abstract:
- Iron limits primary productivity in 40% of the oceans and may control phytoplankton species elsewhere; for this reason iron is a key control of the ocean flux of carbon. In spite of its importance there is disagreement regarding its concentration in seawater, and in its chemical speciation which is affected by complexation with organic matter and redox reactions: these important reactions fundamentally determine the iron bioavailability and geochemistry. We ask for funding to participate with a cruise on the Pacific organised by US researchers, to collect a set of samples for speciation research, and to enable cross calibrations of analytical techniques on-board ship. Specific objectives of the project are: 1)to investigate in detail the chemical speciation of iron due to organic complexation in seawater, and changes in this and in the redox speciation in response to sun light in a series of laboratory based experiments in samples collected during the cruise; 2) to carry out an intercomparison of techniques for iron detection and speciation of iron on-board ship in the North Pacific at iron levels between 0.05 and 0.7 nM; and 3)to determine the composition of the elusive organic iron binding ligands(siderophores?) which bind iron in seawater.
- NERC Reference:
- NE/B000176/1
- Grant Stage:
- Completed
- Scheme:
- Standard Grants Pre FEC
- Grant Status:
- Closed
- Programme:
- Standard Grant
This grant award has a total value of £149,231
FDAB - Financial Details (Award breakdown by headings)
| Total - Staff | Total - T&S | Total - Other Costs | Total - Equipment | Total - Indirect Costs |
|---|---|---|---|---|
| £85,318 | £4,752 | £6,870 | £13,044 | £39,246 |
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