| NSF Org: |
AGS Division of Atmospheric and Geospace Sciences |
| Recipient: |
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| Initial Amendment Date: | September 13, 2017 |
| Latest Amendment Date: | September 13, 2017 |
| Award Number: | 1750497 |
| Award Instrument: | Standard Grant |
| Program Manager: |
Sylvia Edgerton
sedgerto@nsf.gov (703)292-8522 AGS Division of Atmospheric and Geospace Sciences GEO Directorate for Geosciences |
| Start Date: | June 1, 2017 |
| End Date: | December 31, 2017 (Estimated) |
| Total Intended Award Amount: | $50,052.00 |
| Total Awarded Amount to Date: | $50,052.00 |
| Funds Obligated to Date: |
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| History of Investigator: |
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| Recipient Sponsored Research Office: |
160 ALDRICH HALL IRVINE CA US 92697-0001 (949)824-7295 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
141 Innovation Drive Irvine CA US 92617-3213 |
| Primary Place of
Performance Congressional District: |
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| Unique Entity Identifier (UEI): |
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| Parent UEI: |
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| NSF Program(s): | Atmospheric Chemistry |
| Primary Program Source: |
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| Program Reference Code(s): | |
| Program Element Code(s): |
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| Award Agency Code: | 4900 |
| Fund Agency Code: | 4900 |
| Assistance Listing Number(s): | 47.050 |
ABSTRACT
This project will investigate processes associated with the natural emissions of biogenic volatile organic compounds (BVOCs) that lead to the formation of secondary organic aerosol (SOA). Of particular interest is the assessment of organic compounds derived from BVOC oxidation that are water-soluble, CCN-active and react readily with the OH radical in controlled laboratory experiments to create low-volatility products that may form secondary aerosol via multiphase organic chemistry. Continuous measurements of SOA chemical and physical properties will be made during the Southern Oxidant and Aerosol Study (SOAS) to be conducted near Centreville Alabama in the summer of 2013. This study will focus on the role of particle phase liquid water and particle pH in determining SOA mass. The data will be analyzed to elucidate the linkages between bio- and anthropogenic emissions on multiphase chemistry, and estimate the magnitude of the contribution of multiphase pathways to SOA.
This research is needed in order to improve understanding of local and global climate and air quality. The results may help explain whether the anomalous temperature trend in the Southeast, which has not warmed like other regions in response to global climate change, is due to interactions among biogenic and anthropogenic emissions that can affect regional climate through formation of secondary organic aerosol. During the field campaign, there will be many activities supporting science communication and education.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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PROJECT OUTCOMES REPORT
Disclaimer
This Project Outcomes Report for the General Public is displayed verbatim as submitted by the Principal Investigator (PI) for this award. Any opinions, findings, and conclusions or recommendations expressed in this Report are those of the PI and do not necessarily reflect the views of the National Science Foundation; NSF has not approved or endorsed its content.
Project Outcomes for the past 12 months
The primary recent outcome for this project for the past 12 months is scientific and technical leadership for the publication of an overview article that synthesizes findings from the Southern Oxidant and Aerosol Study (SOAS) with information derived from other field campaigns that also occurred in the Eastern and Southeastern U.S. concurrently. The article is entitled "Synthesis of the southeast atmosphere studies: investigating fundamental atmospheric chemistry questions" in the Bulletin of the American Meteorology Society (BAMS) in the March 2018 issue. BAMS is the flagship magazine of the American Meteorological Society. The journal publishes articles of broad interest in significance for the weather, water and climate community. Because our SOAS campaign primarily involved atmospheric chemists, we purposefully worked to reach out to the broader atmospheric sciences community by publishing in BAMS.
The manuscript describes key findings regarding science topics that span across all of the campaigns: 1.) atmosphere-biosphere interactions, 2.) anthropogenic emissions in the U.S. and trends in ambient data, 3.) atmospheric nitrogen chemistry during the day and night, 4.) mercury cycling in the atmosphere, 5.) development of new gas- and multiphase chemical mechanisms, 6.) the organic aerosol budget in the U.S. and 7.) discussion of climate-relevant properties of the atmospheric aerosol.
The Document Object Identifier for this manuscript is doi:10.1175./BAMS-D-16-0048.1.
Last Modified: 04/01/2018
Modified by: Ann Marie G Carlton
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