Sq and EEJ—a review on the daily variation of the geomagnetic field caused by ionospheric dynamo currents

Y Yamazaki, A Maute - Space Science Reviews, 2017 - Springer
A record of the geomagnetic field on the ground sometimes shows smooth daily variations
on the order of a few tens of nano teslas. These daily variations, commonly known as Sq, are …

A method to derive Fourier–wavelet spectra for the characterization of global-scale waves in the mesosphere and lower thermosphere and its MATLAB and Python …

Y Yamazaki - Geoscientific Model Development, 2023 - gmd.copernicus.org
This paper describes a simple method for characterizing global-scale waves in the
mesosphere and lower thermosphere (MLT), such as tides and traveling planetary waves …

Recent investigation on the coupling between the ionosphere and upper atmosphere

WX Wan, JY Xu - Science China Earth Sciences, 2014 - Springer
Scientific attention has recently been focused on the coupling of the earth's upper
atmosphere and ionosphere. In the present work, we review the advances in this field …

Large‐amplitude quasi‐10‐day waves in the middle atmosphere during final warmings

Y Yamazaki, V Matthias - Journal of Geophysical Research …, 2019 - Wiley Online Library
Geopotential height measurements from the Aura Microwave Limb Sounder between 9‐and
97‐km altitudes during 2004–2018 are used to examine long‐period (3–20 days) wave …

Unexpected global structure of quasi‐4‐day wave with westward zonal wavenumber 2 during the February 2023 unusual major sudden stratospheric warming with …

Y Qin, SY Gu, X Dou, Y Wei - Geophysical Research Letters, 2024 - Wiley Online Library
Abstract During February 2023, the quasi‐4‐day wave (Q4DW) with westward zonal
wavenumber 2 (W2) reached its largest amplitude of∼ 400 m in the Southern Hemisphere …

Quasi‐2‐day wave in low‐latitude atmospheric winds as viewed from the ground and space during January–March, 2020

M He, JL Chau, JM Forbes, X Zhang… - Geophysical …, 2021 - Wiley Online Library
Horizontal winds from four low‐latitude (±15°) specular meteor radars (SMRs) and the
Michelson Interferometer for Global High‐resolution Thermospheric Imaging (MIGHTI) …

Responses of quasi 2 day waves in the MLT region to the 2013 SSW revealed by a meteor radar chain

Z Ma, Y Gong, S Zhang, Q Zhou… - Geophysical …, 2017 - Wiley Online Library
We present an analysis of the responses of quasi 2 day waves (QTDWs) to the 2013 sudden
stratosphere warming (SSW) in the mesosphere and lower thermosphere (MLT) region. The …

Quasi two day wave‐related variability in the background dynamics and composition of the mesosphere/thermosphere and the ionosphere

LC Chang, J Yue, W Wang, Q Wu… - Journal of Geophysical …, 2014 - Wiley Online Library
Dissipating planetary waves in the mesosphere/lower thermosphere (MLT) region may
cause changes in the background dynamics of that region, subsequently driving variability …

Tidal variations in the mesosphere and lower thermosphere before, during, and after the 2009 sudden stratospheric warming

G Liu, RS Lieberman, VL Harvey… - Journal of …, 2021 - Wiley Online Library
This work presents a comprehensive evaluation of tides in the mesosphere and lower
thermosphere (MLT) of the Whole Atmosphere Community Climate Model with …

The Morphology of the 6‐Day Wave in Both the Neutral Atmosphere and F Region Ionosphere Under Solar Minimum Conditions

SY Gu, H Ruan, CY Yang, Q Gan… - Journal of …, 2018 - Wiley Online Library
Abstract Combined Thermosphere‐Ionosphere‐Mesosphere Energetics and Dynamics
(TIMED)/TIMED Doppler interferometer horizontal winds, Global Positioning System Total …