Characteristics and Chemistry of Power Plant Plumes: Conesville Case Study

HR: 0800h
AN: A51C-0073 [Abstracts]
TI: Characteristics and Chemistry of Power Plant Plumes: Conesville Case Study
AU: * Fortin, T J
EM: Tara.Fortin@noaa.gov
AF: NOAA Aeronomy Laboratory, 325 Broadway, R/AL7, Boulder, CO 80305
AU: * Fortin, T J
EM: Tara.Fortin@noaa.gov
AF: CIRES, University of Colorado, Boulder, CO 80309
AU: Ryerson, T B
EM: Thomas.B.Ryerson@noaa.gov
AF: NOAA Aeronomy Laboratory, 325 Broadway, R/AL7, Boulder, CO 80305
AU: Holloway, J S
EM: John.S.Holloway@noaa.gov
AF: NOAA Aeronomy Laboratory, 325 Broadway, R/AL7, Boulder, CO 80305
AU: Holloway, J S
EM: John.S.Holloway@noaa.gov
AF: CIRES, University of Colorado, Boulder, CO 80309
AU: Neuman, A
EM: Andy.Neuman@noaa.gov
AF: NOAA Aeronomy Laboratory, 325 Broadway, R/AL7, Boulder, CO 80305
AU: Neuman, A
EM: Andy.Neuman@noaa.gov
AF: CIRES, University of Colorado, Boulder, CO 80309
AU: Flocke, F
EM: ffl@ucar.edu
AF: NCAR, 1850 Table Mesa Drive, Boulder, CO 80305
AU: Swanson, A
EM: aswanson@ucar.edu
AF: CIRES, University of Colorado, Boulder, CO 80309
AU: Swanson, A
EM: aswanson@ucar.edu
AF: NCAR, 1850 Table Mesa Drive, Boulder, CO 80305
AU: de Gouw, J A
EM: Joost.DeGouw@noaa.gov
AF: NOAA Aeronomy Laboratory, 325 Broadway, R/AL7, Boulder, CO 80305
AU: de Gouw, J A
EM: Joost.DeGouw@noaa.gov
AF: CIRES, University of Colorado, Boulder, CO 80309
AU: Warneke, C
EM: Carsten.Warneke@noaa.gov
AF: NOAA Aeronomy Laboratory, 325 Broadway, R/AL7, Boulder, CO 80305
AU: Warneke, C
EM: Carsten.Warneke@noaa.gov
AF: CIRES, University of Colorado, Boulder, CO 80309
AU: Huey, G
EM: greg.huey@eas.gatech.edu
AF: Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332
AU: Tanner, D J
EM: david.tanner@eas.gatech.edu
AF: Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332
AU: Stark, H
EM: Harald.Stark@noaa.gov
AF: NOAA Aeronomy Laboratory, 325 Broadway, R/AL7, Boulder, CO 80305
AU: Stark, H
EM: Harald.Stark@noaa.gov
AF: CIRES, University of Colorado, Boulder, CO 80309
AU: Brock, C A
EM: Charles.A.Brock@noaa.gov
AF: NOAA Aeronomy Laboratory, 325 Broadway, R/AL7, Boulder, CO 80305
AU: Wollny, A G
EM: Adam.Wollny@noaa.gov
AF: NOAA Aeronomy Laboratory, 325 Broadway, R/AL7, Boulder, CO 80305
AU: Wollny, A G
EM: Adam.Wollny@noaa.gov
AF: CIRES, University of Colorado, Boulder, CO 80309
AU: Weber, R J
EM: rweber@eas.gatech.edu
AF: Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332
AU: Peltier, R
EM: rpeltier@eas.gatech.edu
AF: Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332
AU: Sorooshian, A
EM: armin@caltech.edu
AF: California Institute of Technology, 1200 E. California Blvd., Pasadena, CA 91125
AU: Brechtel, F J
EM: fredb@caltech.edu
AF: California Institute of Technology, 1200 E. California Blvd., Pasadena, CA 91125
AU: Seinfeld, J H
EM: seinfeld@caltech.edu
AF: California Institute of Technology, 1200 E. California Blvd., Pasadena, CA 91125
AU: Fehsenfeld, F C
EM: Fred.C.Fehsenfeld@noaa.gov
AF: NOAA Aeronomy Laboratory, 325 Broadway, R/AL7, Boulder, CO 80305
AU: Fehsenfeld, F C
EM: Fred.C.Fehsenfeld@noaa.gov
AF: CIRES, University of Colorado, Boulder, CO 80309
AB: In the U.S., electric power generation accounts for 67% of SO₂ and 25% of NO_x emissions, which ultimately contribute to photochemical ozone production, acid rain, and particulate formation. Effective air quality management strategies require that the models used to inform decisions can accurately depict the composition, quantity, and atmospheric fate of these point source emissions. Measurements made aboard the NOAA WP-3D aircraft during the 2004 New England Air Quality Study - International Transport and Chemical Transformation (NEAQS-ITCT) project provide an opportunity to garner such information. This case study focuses on the Conesville power plant located in Coshocton County, Ohio for which multiple downwind plume intercepts were made on August 6th. Results will be presented which indicate that NOx oxidation on this day was relatively slow, producing primarily HNO₃ and minimal O₃ after more than 3 hours of transport. Low ambient temperatures, low VOC concentrations, and scattered cloud cover all appear to have contributed to the observed behavior. Additional analysis will make use of a suite of complementary gas and particle measurements made aboard both the NOAA WP-3D and the CIRPAS Twin Otter in an effort determine the relative importance of gas-phase and aqueous-phase processes for SO₂ oxidation in the Conesville plume.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0365 Troposphere: composition and chemistry
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005