Clarifying the global distribution of minor species in the middle atmosphere based on satellite measurements from the Superconducting Submillimeter-Wave Limb-Emission Sounder

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The Superconducting Submillimeter-Wave Limb-Emission Sounder (SMILES) was successfully launched and attached to the Japanese Experiment Module (JEM) on the International Space Station (ISS) in September 2009. Although the observation period was limited only for about six months, it had made high-sensitivity measurements in the middle atmosphere. On the basis of the observational data for minor species, such as O_3, HCl, ClO, and BrO, which are critical to ozonebudget in the atmosphere, we have clarified the space-time variations with unprecedented precision. In particular we found the diurnal variation of these minor species that had not been observed clearly by the former satellite observations so far.