HR: 16:00h
AN: A44A-01    [Abstracts]
TI: Large-scale Carbon Monoxide Transport as Revealed by AIRS During the NASA INTEX-A Field Campaign
AU: * McMillan, W W
EM: mcmillan@umbc.edu
AF: Department of Physics U. of Maryland, Baltimore Cnty, 1000 Hilltop Circle, Baltimore, MD 21250-0001 United States
AU: Warner, J
EM: warner@blackgold.umbc.edu
AF: Joint Center for Earth Systems Technology U. of Maryland, Baltimore Cnty, 1000 Hilltop Circle, Elkridge, MD 21250-0001 United States
AU: McCourt, M L
EM: michele@jcet.umbc.edu
AF: Department of Physics U. of Maryland, Baltimore Cnty, 1000 Hilltop Circle, Baltimore, MD 21250-0001 United States
AU: Barnet, C
EM: chris.barnet@noaa.gov
AF: NOAA NESDIS/ORA, 5200 Auth Road, Canp Springs, MD 20746 United States
AU: Wolf, W
EM: Walter.Wolf@noaa.gov
AF: QSS Group, Inc., World Weather Building 5200 Auth Road, Camp Springs, MD 20746 United States
AU: Sachse, G W
EM: glen.w.sachse@nasa.gov
AF: NASA Langley Research Center, Mail Stop 472, Hampton, VA 23681 United States
AB: During NASA's Intercontinental Chemical Transport Experiment (INTEX-A) the AIRS retrieval algorithm was run semi-operationally to provide next-day maps of Carbon Monoxide (CO) to assist with flight-planning. With AIRS L1b radiances supplied by NOAA/NESDIS, the research version of the AIRS retrieval algorithm was run at the University of Maryland Baltimore County (UMBC) in a mostly autonomous mode with separate AM and PM orbital track maps automatically posted to the web. The time-period covered ran from June 1 to August 16, 2004, with INTEX-A itself running from July 1 to August 15, 2004. Retrievals were performed on all AIRS granules falling within longitudes 180W to 30E and latitudes 15N to 70N. The online maps present AIRS retrievals binned on a 1 degree scale. Large forest fires burning in the Alaskan and Canadian Yukon from June 29-July 23 represent the major CO sources observed during this time. The AIRS maps clearly show large CO plumes from these fires transiting across Canada and as far south as the Louisiana coast on the Gulf of Mexico and as far east as Western Europe. These plumes were sampled numerous times by the DC-8 and various NOAA and international aircraft participating in the International Consortium for Atmospheric Research Transport and Transformation (ICARTT) field campaign. AIRS observations also reveal significant periodic sources of CO from the industrial and Southeastern United States and perhaps Asia. Ongoing analysis and interpretation seeks to quantify all these sources and determine the source regions (Asia, Siberia, Alaska?) for the enhanced CO observed over the Pacific Ocean north and west of Hawaii. We will summarize AIRS CO measurements during INTEX-A and present preliminary comparisons with in situ measurements from the NASA DC-8.
UR: http://asl.umbc.edu/pub/mcmillan/www/index.html
DE: 1640 Remote sensing
DE: 0322 Constituent sources and sinks
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