Probing the Atmospheric Precipitable Water Vapor with SOFIA, Part I, Measurements of the Water Vapor Overburden with FIFI-LS. (13th April 2021)

• Record Type: Journal Article
• Authors: Fischer, C.; Iserlohe, C.; Vacca, W.; Fadda, D.; Colditz, S.; Fischer, N.; Krabbe, A.
• Is Part Of: Publications of the Astronomical Society of the Pacific. Volume 133:Number 1023(2021)
• Publication Date: 2021-04-13
• Subjects: Astronomical instrumentation -- Astronomy data reduction -- Astronomy data analysis -- Astronomical methods -- Atmospheric extinction -- Flux calibration; Astronomy -- Periodicals; Astronomy; Periodicals; Periodicals; 520.5
• DOI: 10.1088/1538-3873/abf1ca
• Languages: English
• ISSNs: 0004-6280

Abstract

Abstract: We report on the measurements of telluric water vapor made with the instrument FIFI-LS on SOFIA. Since November 2018, FIFI-LS has measured the water vapor overburden with the same measurement setup on each science flight with about 10 data points throughout the flight. This created a large sample of 469 measurements at different locations, flight altitudes and seasons. The paper describes the measurement principle in detail and provides some trend analysis on the 3 parameters. This presents the first systematic analysis with SOFIA based on in situ observations.