Articles | Volume 21, issue 4
https://doi.org/10.5194/acp-21-2343-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-2343-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
18 Feb 2021
Research article |
| 18 Feb 2021
| 18 Feb 2021
Formation of an additional density peak in the bottom side of the sodium layer associated with the passage of multiple mesospheric frontal systems
Viswanathan Lakshmi Narayanan
CORRESPONDING AUTHOR
Department of Physics and Technology, UiT – The Arctic University of Norway, Tromsø, Norway
Satonori Nozawa
Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
Shin-Ichiro Oyama
Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
Space Physics and Astronomy Research Unit, University of Oulu, Oulu, Finland
National Institute of Polar Research, Tokyo, Japan
Ingrid Mann
Department of Physics and Technology, UiT – The Arctic University of Norway, Tromsø, Norway
Kazuo Shiokawa
Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
Yuichi Otsuka
Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
Norihito Saito
RIKEN Center for Advanced Photonics, Riken, Saitama, Japan
Satoshi Wada
RIKEN Center for Advanced Photonics, Riken, Saitama, Japan
Takuya D. Kawahara
Faculty of Engineering, Shinshu University, Nagano, Japan
Toru Takahashi
Department of Physics, University of Oslo, Oslo, Norway
Electronic Navigation Research Institute, National Institute of Maritime, Port, and Aviation Technology, Tokyo, Japan
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Short summary
In the past, additional sodium peaks occurring above the main sodium layer of the upper mesosphere were discussed. Here, formation of an additional sodium peak below the main sodium layer peak is discussed in detail. The event coincided with passage of multiple mesospheric bores, which are step-like disturbances occurring in the upper mesosphere. Hence, this work highlights the importance of such mesospheric bores in causing significant changes to the minor species concentration in a short time.
In the past, additional sodium peaks occurring above the main sodium layer of the upper...
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