The chemistry of stratospheric ozone is discussed and particular consideration is given to the role of chlorine compounds and to the impact of human activity on the ozone layer. An account is given of the methods used by other researchers to measure hydrogen chloride (HC1) in the stratosphere and their results are summarized. The pressure modulator radiometer (PMR) is an instrument which can be used to make remote measurements of atmospheric temperature and composition by sensing the radiation transmitted by or emitted from an atmospheric path containing gases with absorption bands in the infra-red. A balloon-borne PMR has been used to detect the absorption of solar radiation by the fundamental vibration-rotation band of HC1 at 3.5 micrometres. Using a limb scanning technique, the mixing ratio profile of HC1 has been measured over the height range, 16 to 39 km. It is shown that the amount of HC1 in an atmospheric path can be related to the PMR signals using a line-by-line method. The theory is developed in sufficiently general terms for it to be applicable to line-by-line calculations for many other gases with absorption bands in the infra-red. Consideration is given to the modelling of PMR measurements of transmission and emission both in the atmosphere and in the laboratory. The instrument used to measure HC1 is described in detail. The problems associated with the interpretation of the signals are discussed and an account of the instrument's laboratory testing is given. The reduction of the balloon flight data is described and the method used to retrieve the mixing ratio profile from the PMR signals is presented.

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xii, 177 leaves : ill., plates ; 26 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.1974)--Dept. of Physics, University of Adelaide

Simulations of the Atmospheric Emitted Radiance Interferometer (AERI), a ground-based, high-resolution infrared detection system, are used to produce retrieved atmospheric ozone concentration profiles. A line-by-line transmittance model, FASCD3P, is used for the forward model and a maximum likelihood retrieval scheme is employed for the inverse model. An a priori data set consisting of 83 midlatitude winter ozone sondes is used to condition the inversion. Three iterations are required to reduce the radiance residuals to less than the instrument noise. The retrieval accuracy below 300mb is within 25% of truth. Above 300mb, variance within the a priori data is the dominant source of retrieval error. This is due to the number of retrieved layers (27) being higher than the amount of independent information present in the radiance spectra (approximately 4) so much of the retrieval information above 300mb comes from the a priori data.

Thesis (M. Phil.)--University of Hong Kong, 2000. / Includes bibliographical references.

Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2005. / Includes bibliographical references (leaves 122-126). Also available in electronic version.

Thesis (Ph. D.)--University of California, Los Angeles, 1992. / Vita. Includes bibliographical references (leaves 440-474).

Thesis (Ph. D.)--University of California, Davis, 2004. / Degree granted in Civil and Environmental Engineering. Includes bibliographical references. Also available online. (Restricted to UC campuses)

Thesis (Ph. D.)--Earth and Atmospheric Sciences, Georgia Institute of Technology, 2006. / Rodney J. Weber, Committee Chair ; Michael E. Chang, Committee Member ; Judith A. Curry, Committee Member ; Ellery Ingall, Committee Member ; Michael H. Bergin, Committee Member.