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二酸化炭素気柱量計測用1.57µm光ファイバー型レーザー吸収分光計

著者

境澤大亮, 川上修司, 中島正勝, 田中智章, 井上誠, 森野勇, 内野修

雑誌名

日本リモートセンシング学会誌, 34(1), 1-9

DOI

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概要

Airborne measurements of the partial column-averaged dry-air mixing ratio of CO₂ (XCO₂) and moderate airplane height detection were performed using an amplitude-modulated 1.57-µm differential laser absorption spectrometer (LAS). The LAS system proved to be compact, reliable, and rigid in the field measurements. Airborne demonstration flights resulted in a high correlation coefficient of 0.987 between XCO₂ observed from LAS and XCO₂ calculated from in situ measurements.The average XCO₂ obtained from LAS and in situ data agreed within 1.5 ppm, and the method achieved a measurement precision of 2.5 ppm for spiral measurements.