What can we learn about tropospheric OH from satellite observations of methane?
Elise Penn,Daniel J. Jacob,Zichong Chen,James D. East,Melissa P. Sulprizio,Lori Bruhwiler,Joannes D. Maasakkers,Hannah Nesser,Zhen Qu,Yuzhong Zhang,and John Worden
Key Laboratory of Coastal Environment and Resources of Zhejiang Province (KLaCER), School of Engineering, Westlake University, Hangzhou, Zhejiang, China
John Worden
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
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Total article views: 915 (including HTML, PDF, and XML)
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The hydroxyl radical (OH) destroys many air pollutants, including methane. Global-mean OH cannot be directly measured, and thus it is inferred with the methyl chloroform (MCF) proxy. MCF is decreasing, and a replacement is needed. We use satellite observations of methane in two spectral ranges as a proxy for OH. We find shortwave infrared observations can characterize yearly OH and its seasonality but not the latitudinal distribution. Thermal infrared observations add little information.
The hydroxyl radical (OH) destroys many air pollutants, including methane. Global-mean OH cannot...
