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@ARTICLE{Bossert:1008307,
author = {Bossert, Katrina and Hoffmann, Lars and Mlynczak, Martin
and Hunt, Linda},
title = {{O}bservations of 4.26 μm {CO}2 {A}uroral {E}missions
{F}rom {AIRS} {N}adir {S}ounder {M}easurements},
journal = {Geophysical research letters},
volume = {50},
number = {11},
issn = {0094-8276},
address = {Hoboken, NJ},
publisher = {Wiley},
reportid = {FZJ-2023-02274},
pages = {e2023GL103856},
year = {2023},
abstract = {The Atmospheric Infrared Sounder (AIRS) instrument onboard
the NASA Aqua satellite is used to observe aurora associated
with the CO2 4.26 μm emission. These observations are due
to non-local thermodynamic equilibrium (NLTE) resulting from
the vibrational excitation of CO2, which arises in the
process of auroral energetic particle precipitation, as
opposed to the dayside NLTE occurring due to solar
radiation. The observations are confirmed to be associated
with aurora using the Sounding of the Atmosphere using
Broadband Emission Radiometry (SABER) limb measurements and
the SuperMAG Electrojet (SME) index. The high spectral
resolution and low noise associated with the AIRS instrument
allows for the emission spectrum to be calculated and
confirmed to arise from CO2. Our new NLTE index values
derived from AIRS provide the ability to globally measure
auroral events associated with CO2 with a spatial resolution
on the order of ∼13.5 km.},
cin = {JSC},
ddc = {550},
cid = {I:(DE-Juel1)JSC-20090406},
pnm = {5111 - Domain-Specific Simulation $\&$ Data Life Cycle Labs
(SDLs) and Research Groups (POF4-511)},
pid = {G:(DE-HGF)POF4-5111},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001022443300001},
doi = {10.1029/2023GL103856},
url = {https://juser.fz-juelich.de/record/1008307},
}