Cavity enhanced instruments for detection of hydrogen chloride and aerosol optical extinction
This thesis concerns the development of cavity enhanced instruments for atmospheric science studies. Hydrochloric acid (HCl) is an important reservoir species for active halogens which are thought to participate in cycles that deplete ozone. In order to understand these halogens and their effect on ozone depletion, a cavity ring-down spectroscopy (CRDS) based instrument was developed for ultra-sensitive HCl concentration measurements. The instrument has a (1σ) limit of detection of 10 pptv in 5 min and has high specificity to HCl. Aerosols are a fundamental contribution to Earth's radiation ...
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Franka, Isaiah S.
Yalin, Azer P.