HR: 11:50h
AN: A42B-06    [Abstracts]
TI: Smart Balloon Observations of the Distribution of Tropospheric O$_{3}$ Over the North Atlantic
AU: * Talbot, R
EM: robert.talbot@unh.edu
AF: Institute for the Study of Earth, Oceans, and Space, Morse Hall, University of New Hampshire, Durham, NH 03824 United States
AU: Troop, D
EM: don.troop@unh.edu
AF: Institute for the Study of Earth, Oceans, and Space, Morse Hall, University of New Hampshire, Durham, NH 03824 United States
AU: Mao, H
EM: hmao@typhoon.sr.unh.edu
AF: Institute for the Study of Earth, Oceans, and Space, Morse Hall, University of New Hampshire, Durham, NH 03824 United States
AU: Moore, B
EM: b.moore@unh.edu
AF: Institute for the Study of Earth, Oceans, and Space, Morse Hall, University of New Hampshire, Durham, NH 03824 United States
AU: Johnson, R
EM: randy.johnson@noaa.gov
AF: NOAA Air Resources Laboratory, Field Research Division, Idaho Falls, ID 83402 United States
AU: Businger, S
EM: businger@hawaii.edu
AF: Department of Meteorology, University of Hawaii, Honolulu, HI 96822 United States
AU: Hollingshead, A
EM: hollingshead@hawaii.edu
AF: Department of Meteorology, University of Hawaii, Honolulu, HI 96822 United States
AU: Beard, S
EM: beard@noaa.inel.gov
AF: NOAA Air Resources Laboratory, Field Research Division, Idaho Falls, ID 83402 United States
AB: A series of low-altitude balloon flights were conducted over the North Atlantic during the International Consortium for Atmospheric Research on Transport and Transformation (ICARTT) field campaign in July/August 2004. We utilized NOAA's Smart Balloon platform, which carried a suite of meteorological sensors and a miniature O$_{3}$ instrument. We launched four balloons from the northern tip of Long Island that traveled distances ranging from 570 to 6800 km. One of the balloons crossed the Atlantic to the African continent after a 12 day journey. Data was collected with a time resolution of 10 seconds using an Iridium satellite telephone connection. The largest O$_{3}$ mixing ratios were measured directly downwind of New England over the Gulf of Maine at 550 m altitude. The peak value of 195 ppbv was observed during flight 02 on the night of July 20. This flight lasted 49 hours, and ended just north of Prince Edward Island with a median O$_{3}$ mixing ratio of 72 ppbv. During the transatlantic flight, O$_{3}$ mixing ratios were measured over altitudes of 500 to 3400 m and ranged from 30 to 155 ppbv. These highly successful flights indicate that autonomous platforms and low-cost sensors can contribute significantly to our understanding of tropospheric chemistry and the impact of polluted continental outflow on air quality over remote locations.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0343 Planetary atmospheres (5405, 5407, 5409, 5704, 5705, 5707)
DE: 0345 Pollution--urban and regional (0305)
DE: 0365 Troposphere--composition and chemistry
DE: 0368 Troposphere--constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting