Award Abstract # 0401628
Collaborative Research: Influences of Halogen Chemistry on Processing of North American Pollutant Outflow

NSF Org: AGS
Division of Atmospheric and Geospace Sciences
Recipient: RECTOR & VISITORS OF THE UNIVERSITY OF VIRGINIA
Initial Amendment Date: April 16, 2004
Latest Amendment Date: February 15, 2005
Award Number: 0401628
Award Instrument: Continuing Grant
Program Manager: Peter Milne
AGS
 Division of Atmospheric and Geospace Sciences
GEO
 Directorate for Geosciences
Start Date: May 15, 2004
End Date: April 30, 2007 (Estimated)
Total Intended Award Amount: $288,238.00
Total Awarded Amount to Date: $288,238.00
Funds Obligated to Date: FY 2004 = $187,231.00
FY 2005 = $101,007.00
History of Investigator:
  • William Keene (Principal Investigator)
    wck@virginia.edu
Recipient Sponsored Research Office: University of Virginia Main Campus
1001 EMMET ST N
CHARLOTTESVILLE
VA  US  22903-4833
(434)924-4270
Sponsor Congressional District: 05
Primary Place of Performance: University of Virginia Main Campus
1001 EMMET ST N
CHARLOTTESVILLE
VA  US  22903-4833
Primary Place of Performance
Congressional District:
05
Unique Entity Identifier (UEI): JJG6HU8PA4S5
Parent UEI:
NSF Program(s): Atmospheric Chemistry
Primary Program Source: app-0104 
app-0105 
Program Reference Code(s): 1309, EGCH
Program Element Code(s): 152400
Award Agency Code: 4900
Fund Agency Code: 4900
Assistance Listing Number(s): 47.050

ABSTRACT

The recognition of the roles of halogen chemistry and elucidation of the details for various atmospheric environments has been important in improving understanding of a number of processes including ozone depletion in the stratosphere and in the Arctic boundary layer. In the troposphere, the understanding of detailed mechanisms for halogen production and the implications of the presence of halogens, in addition to other oxidants, is not complete and requires further study. This collaborative project involving researchers from four institutions will examine the role of halogen chemistry in the polluted outflow plume off the coast of the northeast U.S. In particular, the influence of halogen chemistry on the ozone budget, on nighttime radical chemistry, on aerosol production and evolution, and on the interaction of the pollution plume with marine boundary layer chemical and physical processes. This will be accomplished by a comprehensive suite of analytical instrumentation measuring important quantities during an observation phase of the study in the summer of 2004, followed by detailed analysis of these observations.

This project will take advantage of, and contribute to, the multiple field campaigns taking place in the summer of 2004 under the umbrella of the International Consortium for Research on Transport and Transformation (ICARTT). This will encourage synergy between the field programs sponsored by NASA (Intercontinental Chemical Transport Experiment, INTEX-A), NOAA (New England Air Quality Study - Intercontinental Transport and Chemical Transformation, NEAQS - ITCT 2004), and European agencies (Intercontinental Transport of Pollution, ITOP). In addition, the AIRMAP (Atmospheric Investigation, Regional Modeling and Prediction) program at the University of New Hampshire is enhancing measurement sites on coastal islands to contribute to this effort.

In addition to improving understanding of halogen chemical processes in the lower atmosphere, thus leading to enhanced ability to predict future changes in the atmosphere, this project will also train graduate and undergraduate students and strengthen the partnership between the participating institutions. There will also be significant public outreach activities.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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Fischer, E., A. Pszenny, W. Keene, J. Maben, A. Smith, A. Stohl, and R. Talbot "Nitric acid phase partitioning and cycling in the New England coastal atmosphere" Journal of Geophysical Research - Atmospheres , v.111 , 2006 10.1029/2006JD007328
Keene, W. C., J. M. Lobert, P. J. Crutzen, J. R. Maben, D. H. Scharffe, T. Landmann, C. Hély, and C. Brain "Emissions of major gaseous and particulate species during experimental burns of southern African biomass" Journal of Geophysical Research - Atmospheres , v.111 , 2006 10.1029/2005JD006319
Keene, W. C., J. Stutz, A. A. P. Pszenny, J. R. Maben, E. Fischer, A. M. Smith, R, von Glasow, S. Pechtl, B. C. Sive, and R. K. Varner "Inorganic chlorine and bromine in coastal New England air during summer" Journal of Geophysical Research - Atmospheres , v.112 , 2007 10.1029/2006JD007328
Russell, L. M., A. A. Mensah, E. V. Fischer, B. C. Sive, R. K. Varner, W. C. Keene, J. Stutz, and A. A. P. Pszenny "Nanoparticle growth following photochemical a- and B-pinene oxidation at Appledore Island during ICARTT/CHAiOS 2004" Journal of Geophysical Research - Atmospheres , v.112 , 2007 10.1029/2006JD007736
Smith, A. M., W. C. Keene, J. R. Maben, A. A. P. Pszenny, E. Fischer, and A. Stohl "Ammonia sources, transport, transformation, and deposition in coastal New England during summer" Journal of Geophysical Research - Atmospheres , v.112 , 2007 10.1029/2006JD007574

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