HR: 09:44h
AN: A31E-07    [Abstracts]
TI: Improved techniques for measuring physical and chemical transformations in the atmosphere: observations of pollution transport, wind shear, and profile evolution using controlled meteorological balloons.
AU: * Voss, P B
EM: pvoss@email.smith.edu
AF: Smith College, Picker Engineering Program 51 College Lane, Northampton, MA 01063 United States
AU: Zaveri, R A
EM: Rahul.Zaveri@pnl.gov
AF: Pacific Northwest National Laboratory, MSIN K930, PO Box 999, Richland, WA 99352 United States
AU: Berkowitz, C M
EM: Carl.Berkowitz@pnl.gov
AF: Pacific Northwest National Laboratory, MSIN K930, PO Box 999, Richland, WA 99352 United States
AU: Riddle, E E
EM: eer24@cornell.edu
AF: Cornell University, 220 Cornstock Rd, Ithaca, NY 14850 United States
AU: Talbot, R W
EM: robert.talbot@unh.edu
AF: University of New Hampshire, AIRMAP / Morse Hall 39 College Rd., Durham, NH 03824 United States
AU: Stohl, A
EM: ast@nilu.no
AF: Norwegian Institute for Air Research, Dept. Regional and Global Pollution Issues P.O. Box 100, Kjeller, N-2027 Norway
AU: Holcombe, D
A31E-07 AF: Smith College, Picker Engineering Program 51 College Lane, Northampton, MA 01063 United States
AU: Hartley, T
A31E-07 AF: Smith College, Picker Engineering Program 51 College Lane, Northampton, MA 01063 United States
AB: Controlled Meteorological (CMET) balloons are small altitude-controlled platforms that can be commanded via satellite to perform soundings, track constant-level, adiabatic, or terrain-following trajectories, or target specific layers in the atmosphere. During the International Consortium for Atmospheric Research on Transport and Transformations (ICARTT) campaign in 2004 and Southeast Texas Tetroon Study (SETTS) in 2005, CMET balloons were used to study the long-range transport and transformation of urban pollution plumes. Balloon and aircraft observations (e.g., companion presentation by Zaveri et al.) in the quasi-Lagrangian reference frame shed light on photochemical processes (nighttime ozone loss) and show direct thermal effects of aerosols of sufficient magnitude to impact cloud formation, precipitation, and regional climate. Repeated balloons soundings in the core of the plumes provide measurements of transport, shear, and dispersion necessary interpret and quasi-Lagrangian observations. Implications for upcoming campaigns focused on the transport and transformation of urban air pollution (e.g., Mirage-Mex) will be discussed.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0368 Troposphere: constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005