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An overview of MIPAS observations of polar stratospheric clouds

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If you have a question about this talk, please contact Dr Andrew Orr.

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The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument onboard the ESA Envisat satellite operated from July 2002 to April 2012. The infra-red limb emission measurements compile a unique dataset of day and night measurements of polar stratospheric clouds up to the poles. From the spectral measurements in the 4.15-14.6 microns range it is possible to select a number of atmospheric window regions and spectral signatures to classify PSC cloud types like nitric acid hydrates, sulfuric ternary solution droplets, and ice particles. The cloud detection sensitivity is similar to space borne lidars, but MIPAS adds complementary information due to its different measurement technique (limb instead of nadir) and wavelength region. An overview of previous MIPAS analyses for northern and southern polar winters as well as more recent results of a new classification approach will be presented.

This talk is part of the British Antarctic Survey series.

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