NSF Award Abstract - #0137891| NSF Award Abstract - #0137891 |
AWSFL008-DS3 |
| NSF Org | ATM |
| Latest Amendment Date | April 23, 2003 |
| Award Number | 0137891 |
| Award Instrument | Standard Grant |
| Program Manager |
Bruce G. Doddridge ATM DIVISION OF ATMOSPHERIC SCIENCES GEO DIRECTORATE FOR GEOSCIENCES |
| Start Date | May 1, 2002 |
| Expires | April 30, 2005 (Estimated) |
| Expected Total Amount | $349999 (Estimated) |
| Investigator | Anne Johansen johansea@cwu.edu (Principal Investigator current) |
| Sponsor |
Central Washington Univ 400 E. University Way Ellensburg, WA 98926 509/963-2111 |
| NSF Program | 1681 ADVANCE - FELLOWS |
| Field Application | 0000099 Other Applications NEC |
| Program Reference Code | 0000,1524,1681,OTHR, |
This project addresses the input of nutrients (specifically, iron) to the oceans from atmospheric transport of dust, and the production of sulfur containing gaseous species (such as DMS, dimethyl sulfide) by the ocean organisms as a result. Increased production of DMS leads to increased atmospheric particle formation which in turn can affect climate. The principal investigator will participate in a research cruise where she will sample atmospheric particulates and analyze them for their trace metal content (including Fe(II)), and measure the gas-phase concentrations of sulfur dioxide (SO2), the atmospheric particulate concentrations of sulfate, and methane sulfonic acid (MSA), all oxidation product of DMS. She will also carry out photochemical leaching experiments which will simulate the interaction between atmospheric aerosols and ocean water.This project, supported under the ADVANCE program, will launch the independent career of a female scientist. It will expose undergraduate students to research at the interface of atmospheric chemistry and oceanography, and will improve our understanding of the role of atmospheric aerosols in enhancing ocean productivity.
