Observations of 4.26 μm CO<sub>2</sub> Auroral Emissions From AIRS Nadir Sounder Measurements
نویسندگان
چکیده
The Atmospheric Infrared Sounder (AIRS) instrument onboard the NASA Aqua satellite is used to observe aurora associated with CO2 4.26 μm emission. These observations are due non-local thermodynamic equilibrium (NLTE) resulting from vibrational excitation of CO2, which arises in process auroral energetic particle precipitation, as opposed dayside NLTE occurring solar radiation. confirmed be using Sounding Atmosphere Broadband Emission Radiometry (SABER) limb measurements and SuperMAG Electrojet (SME) index. high spectral resolution low noise AIRS allows for emission spectrum calculated arise CO2. Our new index values derived provide ability globally measure events a spatial on order ∼13.5 km.
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2023
ISSN: ['1944-8007', '0094-8276']
DOI: https://doi.org/10.1029/2023gl103856