Thermospheric Density Response to the Solar Activity and QBO

Version 1 : Received: 25 July 2023 / Approved: 26 July 2023 / Online: 28 July 2023 (10:46:01 CEST)
Version 2 : Received: 28 July 2023 / Approved: 31 July 2023 / Online: 31 July 2023 (11:23:50 CEST)

A peer-reviewed article of this Preprint also exists.

Li, B.; Cui, R.; Weng, L. Thermospheric Density Response to the QBO Signal. Atmosphere 2023, 14, 1317. Li, B.; Cui, R.; Weng, L. Thermospheric Density Response to the QBO Signal. Atmosphere 2023, 14, 1317.

Abstract

In this study, we discuss the thermospheric density response to the solar activity and QBO. By using the wavelet power spectrum method, the thermospheric density from 1967 to 2013 shows ~11-year period, semiannual and annual variations, while the seasonal variation is usually more significant under high solar activity conditions. Importantly, we investigate the possible link between the density and the QBO, with the aid of GAMDM model and different density residual method. As a result, the difference between the measured density and empirical model seemingly has QBO signal, but the ratio of them revels that the QBO signal does not exist in the thermospheric density. Comprehensively, we thought the stratospheric QBO cannot impact on the thermosphere, and more data and numerical modeling are needed for further validation.

Keywords

thermospheric density; GAMDM; QBO; solar activity

Subject

Environmental and Earth Sciences, Atmospheric Science and Meteorology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Comments (1)

Comment 1

Received: 31 July 2023
Commenter: Libin Weng
Commenter's Conflict of Interests: Author

Comment: We update the authors information, and add one reference in the new manuscript.

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