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A new insight on tropospheric methane in the Tropics – first year from IASI hyperspectral infrared observations
2009
Atmospheric Chemistry and Physics Discussions
Simultaneous observations from the Infrared Atmospheric Sounding Interferometer (IASI) and from the Advanced Microwave Sounding Unit (AMSU), launched together onboard the European MetOp platform in October 2006, are used to retrieve a midto-upper tropospheric content of methane (CH 4 ) in clear-sky conditions, in the Tropics, 5 over sea, for the first 16 months of operation of MetOp (July 2007-October 2008. With its very high spectral resolution, IASI provides nine channels in the 7.7 µm band
doi:10.5194/acpd-9-6855-2009
fatcat:4mjsyvglufakzbhjsj4u4pa46m