Contribution of the Overtone Vibration-Rotation Emissions From Chemiluminescent NO to Storm-time Thermospheric Energy Budget

Details Contribution of the Overtone Vibration-Rotation Emissions From Chemiluminescent NO to Storm-time Thermospheric Energy Budget Contribution of the Overtone Vibration-Rotation Emissions From Chemiluminescent NO to Storm-time Thermospheric Energy Budget

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsa23a1126s&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SA23A-1126

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0340 Middle Atmosphere: Composition And Chemistry, 0342 Middle Atmosphere: Energy Deposition (3334), 0355 Thermosphere: Composition And Chemistry, 0358 Thermosphere: Energy Deposition (3369)

Scientific paper

Recent work [Mlynczak et al.; 2005, 2007] has pointed out that about 50% of the energy input into the atmosphere during a solar storm is radiated away as 5.3 μm fundamental vibration-rotation band (Δv=-1) emission from NO. The energy radiated away as 15 μm emission from CO2, on the other hand, is only about 2.3% of the 5.3 μm NO emission. We calculate the contribution to the energy budget by the overtone emission from chemiluminescent NO. Based on the model of spectrally resolved 5.3 μm emission from NO observed by CIRRIS-1A from an aurorally dosed high-altitude atmosphere [Duff et al., 2005] we show that the energy radiated away by chemiluminescent NO in the first overtone (Δv=-2) near 2.7 μm is about 20% of the 5.3 μm emission, about an order of magnitude larger than that radiated away as 15 μm emission from CO2. We plan to parameterize this contribution to the energy budget as function of input storm energy and altitude so that it can be included in the atmospheric models.

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