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Award Abstract #0223397
Collaborative Research: Global Ocean Survey of Dissolved Iron and Aluminum and Aerosol Iron and Aluminum Solubility Supporting the Repeat Hydrography (CO2) Project
| NSF Org: |
OCE
Division of Ocean Sciences
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| Initial Amendment Date: |
January 29, 2003 |
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| Latest Amendment Date: |
January 29, 2003 |
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| Award Number: |
0223397 |
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| Award Instrument: |
Standard Grant |
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| Program Manager: |
Donald L. Rice
OCE Division of Ocean Sciences
GEO Directorate for Geosciences
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| Start Date: |
February 1, 2003 |
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| Expires: |
January 31, 2007 (Estimated) |
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| Awarded Amount to Date: |
$942670 |
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| Investigator(s): |
Christopher Measures chrism@soest.hawaii.edu (Principal Investigator)
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| Sponsor: |
University of Hawaii
2530 Dole Street
HONOLULU, HI 96822 808/956-7800
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| NSF Program(s): |
CHEMICAL OCEANOGRAPHY
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| Field Application(s): |
0204000 Oceanography
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| Program Reference Code(s): |
EGCH, 1389
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| Program Element Code(s): |
1670
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ABSTRACT
ABSTRACT
OCE-0223378
OCE-0223397
OCE-0223504
A scientist from Florida State University in collaboration with colleagues from the University of Hawaii and the University of Washington will collect a suite of dissolved and particulate samples from surface waters and vertical profiles (12 depths), as well as atmospheric aerosol and rainwater samples during selected legs of the Repeat Hydrography CO2 cruises. The PIs plan to participate in the following four cruises: (1) the North Atlantic Ocean meridional section (20-25'W) during 2003; (2) the Pacific Ocean zonal section at 30'N during 2004; (3) the South Atlantic Ocean meridional section (20-25'W) in 2005; and (4) the South Pacific Ocean meridional section (150W) in 2005. Samples recovered during these cruises will be analyzed for Fe and Al. In addition, aerosol samples will be subjected to an ultrapure water leach to assess the fractional solubility of Fe and Al. This team of PIs also plans to collect and archive filtered and unfiltered water samples and aerosols for analysis by other scientists in the trace metal and tracer community. The primary objectives of this study is to generate an extensive database of Fe and Al concentrations in water and aerosol samples that can constrain global and regional dust deposition models and determine the role that atmospheric Fe depositions have in delivering Fe to surface waters in the major basins of the world's oceans.
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