Spectrometric measurements of atmospheric propane (C<sub>3</sub>H<sub>8</sub>)
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Published:2021-07-14
Issue:13
Volume:21
Page:10727-10743
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ISSN:1680-7324
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Container-title:Atmospheric Chemistry and Physics
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language:en
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Short-container-title:Atmos. Chem. Phys.
Author:
Toon Geoffrey C., Blavier Jean-Francois L., Sung KeeyoonORCID, Yu KatelynORCID
Abstract
Abstract. We report measurements of atmospheric C3H8 from analysis
of ground-based solar absorption spectra from the Jet Propulsion Laboratory (JPL) MkIV interferometer.
Using the strong Q-branch absorption feature at 2967 cm−1, we can
measure C3H8 in locations where its abundance is enhanced by
proximity to sources (e.g., large natural gas fields, megacities). A case
study of MkIV C3H8 measurements from Fort Sumner, New Mexico, shows
that amounts are strongly correlated with ethane (C2H6) and with
back-trajectories from SE New Mexico and western Texas, where the Permian Basin
oil and natural gas field is located. Measurements from JPL, California,
also show large C3H8 enhancements on certain days but more
correlated with CO than C2H6. From high-altitude balloon-borne
MkIV solar occultation measurements, C3H8 was not detected at any
altitude (5–40 km) in any of the 25 flights.
Publisher
Copernicus GmbH
Subject
Atmospheric Science
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