Behavior of atmospheric О І λ 630.0 nm emission before earthquakes

1Fedorenko, AK, 2Ivchenko, VM
1Space Research Institute of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Kyiv, Ukraine
2Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Kosm. nauka tehnol. 2001, 7 ;(2-3):035-040
https://doi.org/10.15407/knit2001.02.035
Publication Language: Ukrainian
Abstract: 
We analyze seismogenic variations of the nightglow emission О І λ  630.0 nm. We suggest the mechanism which explains the anomalous decrease of this line intensity few hours before an earthquake. This mechanism is based on the fact that ion-molecular reactions depend crucially on the ion temperature. Ionospheric electric fields are an effective factor of the ion heating influencing the chemical reaction rate. As a result, the production of O(1 D) atoms and the intensity of emission О І λ 630.0 nm decrease.
Keywords: earthquakes, emission, ion-molecular reactions
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