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https://doi.org/10.5194/egusphere-2026-6900
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/egusphere-2026-6900
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
12 Nov 2026
| 12 Nov 2026
Day-To-Day Variability of Nonmigrating Tides Derived from Sparse Meteor Radar Data
Abstract. Horizontal winds from six meteor radars during 2005–2012 are used to derive nonmigrating tides in the mesosphere and lower thermosphere (MLT). To our knowledge, it is the first time to derive dominant nonmigrating tides from sparse meteor radar observations. The radars are located at Cariri (7.4 °S, 36.5 °W), Kototabang (0.2 °S, 100.3 °E), Ascension Island (7.9 °S, 14.4 °W), Darwin (12.3 °S, 130.8 °E), Buckland Park (34.6 °S, 138.5 °E), and Kunming (25.6 °N, 103.8 °E). Tidal fitting simulations based on the Whole Atmosphere Community Climate Model (WACCM) winds indicate that DW1, DE3, DE2, and DW2 can be accurately decomposed from these radars. The dominant nonmigrating tides, DE3, DE2, and DW2, show pronounced seasonal and altitudinal variations, and their dominant Hough mode components are identified. The climatology of these tides is consistent with the Climatological Tidal Model of the Thermosphere (CTMT) output. During the 2006 stratospheric sudden warming (SSW) event, DE3 was suppressed during SSW development and recovered after SSW dissipation; DE2 was enhanced during SSW development and rapidly suppressed after SSW reach the maximum; DW2 was suppressed near the SSW central day and strongly enhanced 20 days later. This study develops a method to decompose dominant nonmigrating tidal winds by jointly analyzing six meteor radars and provides an observational basis for modeling tidal dynamics in the MLT and for investigating middle atmosphere-ionosphere coupling through nonmigrating tides.
How to cite. Wang, J., Yi, W., Xue, X., He, M., Wu, J., Ye, H., Chen, T., Li, J., Zeng, J., Ding, Z., Li, N., Wang, J., Vincent, R. A., Reid, I. M., Batista, P. P., Buriti, R. A., Tsuda, T., Mitchell, N. J., and Dou, X.: Day-To-Day Variability of Nonmigrating Tides Derived from Sparse Meteor Radar Data, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2026-6900, 2026.
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Jianyuan Wang
School of Microelectronics, Tianjin University, Tianjin, China
Sate Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, China
School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
CAS Center for Excellence in Comparative Planetology, Anhui Mengcheng Geophysics National Observation and Research Station, University of Science and Technology of China, Hefei, China
School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
CAS Center for Excellence in Comparative Planetology, Anhui Mengcheng Geophysics National Observation and Research Station, University of Science and Technology of China, Hefei, China
Hefei National Laboratory, University of Science and Technology of China, Hefei, China
Collaborate Innovation Center of Astronautical Science and Technology, Harbin, China
Maosheng He
Sate Key Laboratory of Solar Activity and Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, China
Jianfei Wu
School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
CAS Center for Excellence in Comparative Planetology, Anhui Mengcheng Geophysics National Observation and Research Station, University of Science and Technology of China, Hefei, China
Hailun Ye
School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
CAS Center for Excellence in Comparative Planetology, Anhui Mengcheng Geophysics National Observation and Research Station, University of Science and Technology of China, Hefei, China
Tingdi Chen
School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
CAS Center for Excellence in Comparative Planetology, Anhui Mengcheng Geophysics National Observation and Research Station, University of Science and Technology of China, Hefei, China
Jian Li
School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
CAS Center for Excellence in Comparative Planetology, Anhui Mengcheng Geophysics National Observation and Research Station, University of Science and Technology of China, Hefei, China
School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
CAS Center for Excellence in Comparative Planetology, Anhui Mengcheng Geophysics National Observation and Research Station, University of Science and Technology of China, Hefei, China
Zonghua Ding
Kunming Electro-Magnetic Environment Observation and Research Station, Qujing, China
School of Electronic Science and Technology, Hainan University, Haikou, China
Jian Wang
School of Electrical and Electronic Engineering, North China Electric Power University, Beijing
Robert A. Vincent
School of Physical Sciences, University of Adelaide, Adelaide, South Australia, Australia
Iain M. Reid
School of Physical Sciences, University of Adelaide, Adelaide, South Australia, Australia
ATRAD Pty Ltd., Underdale, South Australia, Australia
Paulo P. Batista
National Institute for Space Research, S. J. dos Campos, Brazil
Ricardo A. Buriti
Federal University of Campina Grande, PB, Brazil
Toshitaka Tsuda
Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Uji, Kyoto, Japan
Nicholas J. Mitchell
Department of Electronic and Electrical Engineering, University of Bath, Bath, UK
British Antarctic Survey, Cambridge, UK
Xiankang Dou
Hefei National Laboratory, University of Science and Technology of China, Hefei, China
Short summary
Horizontal winds from six meteor radars in the low-latitude region are used to derive nonmigrating tides in the MLT. To our knowledge, it is the first time to decompose nonmigrating tides from sparse meteor radar observations. The climatology of DE3, DE2, and DW2 is consistent with CTMT. During the 2006 SSW, these tides show significant response. This study develops a method for decomposing nonmigrating tidal winds and provides a chance for investigating middle atmosphere–ionosphere coupling.
Horizontal winds from six meteor radars in the low-latitude region are used to derive...