EGU21-645
https://doi.org/10.5194/egusphere-egu21-645
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

The O2 aurora observed by the TIMED/SABER satellite

Hong Gao, Jiyao Xu, and Yajun Zhu
Hong Gao et al.
  • nssc, State Key Laboratory of Space Weather, China (hgao@spaceweather.ac.cn)

We studied O2 aurora based on the observations of O2 emission at 1.27 μm from the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instrument during the nighttime over 18 years. The horizontal structure and vertical profile of O2 auroral volume emission rate is obtained after removing O2 nightglow contamination. The O2 auroral intensity varies between 0.14 and 5.97 kR, and the peak volume emission rate varies between 0.97 × 102 and 41.01 × 102 photons cm−3 s−1. The O2 auroral intensity and peak volume emission rate exponentially increases with increasing Kp index, whereas the peak height decreases with increasing Kp index. The O2 auroral intensity and peak volume emission rate under solar minimum condition are larger than those under solar maximum condition. The peak height under solar minimum condition is lower than that under solar maximum condition.

How to cite: Gao, H., Xu, J., and Zhu, Y.: The O2 aurora observed by the TIMED/SABER satellite, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-645, https://doi.org/10.5194/egusphere-egu21-645, 2021.

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