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GEOPHYSICAL RESEARCH LETTERS,
VOL. 32,
L11801,
4 PP., 2005
doi:10.1029/2004GL021821
Daily global maps of carbon monoxide from NASA's Atmospheric Infrared Sounder
Department of Physics, University of Maryland Baltimore County, Baltimore, Maryland, USA
Joint Center for Earth Systems Technology, University of Maryland Baltimore County, Baltimore, Maryland, USA
NOAA National Environmental Satellite Data and Information Service/Office of Research and Applications, Camp Springs, Maryland, USA
Department of Physics, University of Maryland Baltimore County, Baltimore, Maryland, USA
Joint Center for Earth Systems Technology, University of Maryland Baltimore County, Baltimore, Maryland, USA
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Department of Physics, University of Maryland Baltimore County, Baltimore, Maryland, USA
Joint Center for Earth Systems Technology, University of Maryland Baltimore County, Baltimore, Maryland, USA
Climate Monitoring and Diagnostics Laboratory, NOAA, Boulder, Colorado, USA
Department of Geography, University of Maryland, College Park, Maryland, USA
Department of Physics, University of Maryland Baltimore County, Baltimore, Maryland, USA
Joint Center for Earth Systems Technology, University of Maryland Baltimore County, Baltimore, Maryland, USA
We present the first observations of tropospheric carbon monoxide (CO) by the Atmospheric Infrared Sounder (AIRS) onboard NASA's Aqua satellite. AIRS daily coverage of ∼70% of the planet represents a significant evolutionary advance in satellite trace gas remote sensing. Tropospheric CO abundances are retrieved from AIRS 4.55 μm spectral region using the full AIRS retrieval algorithm run in a research mode. The presented AIRS daily global CO maps from 22–29 September 2002 show large-scale, long-range transport of CO from anthropogenic and natural sources, most notably from biomass burning. The sequence of daily maps reveal CO advection from Brazil to the South Atlantic in qualitative agreement with previous observations. Forward trajectory analysis confirms this scenario and indicates much longer range transport into the southern Indian Ocean. Preliminary comparisons to in situ aircraft profiles indicate AIRS CO retrievals are approaching the 15% accuracy target set by pre-launch simulations.
Received 24 October 2004; accepted 4 March 2005; published 1 June 2005.
Citation: (2005), Daily global maps of carbon monoxide from NASA's Atmospheric Infrared Sounder, Geophys. Res. Lett., 32, L11801, doi:10.1029/2004GL021821.
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