The Faraday filter-based spectrometer : an instrument to study sodium nightglow and associated sodium and oxygen chemistry in the mesopause region
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The newly developed Faraday Filter-Based Spectrometer (FFBS) makes possible spectroscopic study of the sodium nightglow in the mesopause region (80-110 km) of the atmosphere. This dissertation details the theory, design, and initial results of this instrument. The ratio of various combinations of NaD2 and NaD1 emission intensities can provide information on the oxygen and sodium chemistry in the mesosphere and lower thermosphere (MLT) region. Early understanding of the production of sodium nightglow utilized the series of chemical reactions known as the Chapman Mechanism. This mechanism ...