太陽放射を利用した超高層大気組成の定量的観測法

概要

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Two typical methods of determining the upper atmosphere density and composition in spectroscopic techniques are reviewed. In the first method one measures the attenuation of the solar radiation by atmospheric particles, at particular wavelengths, and deduces the density of the species which contributes to the photo-absorption. In the second method, the fluorecence-the day airglow-of solar radiations by atmospheric atoms and molecules is observed, and their densities are determined form the altitude distribution of the glow. The determination of ozone density by solar u, v absorption technique is an example of the first method. The determination of the N_2^+ ion density by an analysis of the 3914 A dayglow is an example of the second method.
宇宙航空研究開発機構の論文