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Spatiotemporal variations in mid-upper tropospheric methane over China from satellite observations |
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| Authors: | XingYing Zhang WenGuang Bai Peng Zhang WeiHe Wang |
| Affiliation: | ZHANG XingYing 1,2*,BAI WenGuang 1,ZHANG Peng 1 & WANG WeiHe 1 1 Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites,National Satellite Meteorological Center,China Meteorological Administration,Beijing 100081,China,2 State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029 |
| Abstract: | Spaceborne measurements by the Atmospheric Infrared Sounder (AIRS) on the EOS/Aqua satellite provide a global view of methane (CH 4 ) distribution in the mid-upper troposphere (MUT-CH 4 ). The focus of this study is to analyze the spatiotemporal varia- tions in MUT-CH 4 over China from 2003 to 2008. Validation of AIRS CH 4 products versus Fourier transform infrared profiles demonstrates that its RMS error is mostly less than 1.5%. A typical atmospheric methane profile is found that shows how concentrations ... |
| Keywords: | satellite remote sensing mid-upper tropospheric methane spatiotemporal variation |
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