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Satellite observation of atmospheric methane: intercomparison between AIRS and GOSAT TANSO-FTS retrievals
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2016
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Source: Atmos. Meas. Tech., 9(8), 3567–3576
Details:
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Journal Title:Atmospheric Measurement Techniques
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NOAA Program & Office:
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Description:Space-borne observations of atmospheric methane (CH4) have been made using the Atmospheric Infrared Sounder (AIRS) on the EOS/Aqua satellite since August 2002 and the Thermal and Near-infrared Sensor for Carbon Observation Fourier Transform Spectrometer (TANSO-FTS) on the Greenhouse Gases Observing Satellite (GOSAT) since April 2009. This study compared the GOSAT TANSO-FTS thermal infrared (TIR) version 1.0 CH4 product with the collocated AIRS version 6 CH4 product using data from 1 August 2010 to 30 June 2012, including the CH4 mixing ratios and the total column amounts. The results show that at 300–600 hPa, where both AIRS and GOSAT-TIR CH4 have peak sensitivities, they agree very well, but GOSAT-TIR retrievals tend to be higher than AIRS in layer 200–300 hPa.
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Source:Atmos. Meas. Tech., 9(8), 3567–3576
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Rights Information:CC BY
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Compliance:Submitted
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