Aircraft and balloon in situ measurements of methane and hydrochloric acid using interband cascade lasers |
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| Authors: | Christensen Lance E Webster Christopher R Yang Rui Q |
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| Affiliation: | Jet Propulsion Laboratory, California Institute of Technology, Pasadena 91109, USA. lance.christensen@jpl.nasa.gov |
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| Abstract: | Aircraft and balloon in situ measurements of CH4 and HCl using cw distributed feedback (DFB) interband cascade (IC) lasers are reported. In the stratosphere and upper troposphere, sensitivity toward CH4 and HCl is better than 10 ppbv (1 s) and 90 pptv (50 s), respectively. These are the first flight measurements of trace gas-phase species using cw DFB IC lasers. |
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