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Title: Monthly representations of mid-tropospheric carbon dioxide from the Atmospheric Infrared Sounder
Authors: Pagano, Thomas S.
Olsen, Edward T.
Chahine, Moustafa T.
Ruzmaikin, Alexander
Nguyen, Hai
Jiang, Xun
Keywords: Atmospheric Infrared Sounder (AIRS)
Aqua Spacecraft
Carbon Dioxide
Issue Date: 21-Aug-2011
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011.
Citation: SPIE Optics and Photonics, San Diego, California, August 12-16, 2011
Abstract: The Atmospheric Infrared Sounder (AIRS) on NASA’s Earth Observing System Aqua spacecraft was launched in May of 2002 and acquires hyperspectral infrared spectra used to generate a wide range of atmospheric products including temperature, water vapor, and trace gas species including carbon dioxide. Here we present monthly representations of global concentrations of mid-tropospheric carbon dioxide produced from 8 years of data obtained by AIRS between the years of 2003 and 2010. We define them as “representations” rather than “climatologies” to reflect that the files are produced over a relatively short time period and represent summaries of the Level 3 data. Finally, they have not yet been independently validated. The representations have a horizontal resolution of 2.0° x 2.5° (Latitude x Longitude) and faithfully reproduce the original 8 years of monthly L3 CO2 concentrations with a standard deviation of 1.48 ppm and less than 2% outliers. The representations are intended for use in studies of the global general circulation of CO2 and identification of anomalies in CO2 typically associated with atmospheric transport. The seasonal variability and trend found in the AIRS CO2 data are discussed.
Appears in Collections:JPL TRS 1992+

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