@article{132709382b0a4cdeb44f7ec6e2893786,
title = "Rapid Conjugate Appearance of the Giant Ionospheric Lamb Wave Signatures in the Northern Hemisphere After Hunga-Tonga Volcano Eruptions",
abstract = "The explosive eruption of the Hunga-Tonga volcano in the southwest Pacific at 0415UT on 15 January 2022 triggered gigantic atmospheric disturbances with surface air pressure waves propagating around the globe in Lamb mode. In space, concentric traveling ionosphere disturbances (CTIDs) are also observed as a manifestation of air pressure waves in New Zealand ∼0500UT and Australia ∼0630UT. As soon as the air pressure waves reached central Australia ∼0800UT, conjugate CTIDs appeared almost simultaneously in the northern hemispheres through interhemispheric coupling, much earlier than the arrival of the surface air pressure waves to Japan after 1100UT. Combining observations over Australia and Japan between 0800 and 1000UT, both direct and conjugate CTIDs show similar horizontal phase velocities of 320–390 m/s, matching with the dispersion relation of Lamb mode. The arrival of atmospheric Lamb wave to Japan later created in situ CTIDs showing the same Lamb mode characteristics as the earlier conjugate CTIDs.",
author = "Lin, {Jia Ting} and Rajesh, {Panthalingal K.} and Lin, {Charles C.H.} and Chou, {Min Yang} and Liu, {Jann Yenq} and Jia Yue and Hsiao, {Tung Yuan} and Tsai, {Ho Fang} and Chao, {Hoi Man} and Kung, {Mu Min}",
note = "Funding Information: This work is partly supported by the Ministry of Science and Technology under MOST 110-2111-M-006-004 and MOST 110-2119-M-006-001. M. Y. Chou was supported by NASA Grant 80NSSC20K0628. C. C. H. Lin wishes to thank Chao-Han Liu for useful discussions. The authors acknowledge the Geological hazard information for New Zealand, the Geoscience Australia, the Geospatial Information Authority of Japan, the Central Weather Bureau, Taiwan for managing the GNNS observations, and the Geomagnetic Data Service of Kyoto University and NOAA Space Weather Prediction Center for geomagnetic and solar wind parameters. Funding Information: This work is partly supported by the Ministry of Science and Technology under MOST 110‐2111‐M‐006‐004 and MOST 110‐2119‐M‐006‐001. M. Y. Chou was supported by NASA Grant 80NSSC20K0628. C. C. H. Lin wishes to thank Chao‐Han Liu for useful discussions. The authors acknowledge the Geological hazard information for New Zealand, the Geoscience Australia, the Geospatial Information Authority of Japan, the Central Weather Bureau, Taiwan for managing the GNNS observations, and the Geomagnetic Data Service of Kyoto University and NOAA Space Weather Prediction Center for geomagnetic and solar wind parameters. Publisher Copyright: {\textcopyright} 2022. American Geophysical Union. All Rights Reserved.",
year = "2022",
month = apr,
day = "28",
doi = "10.1029/2022GL098222",
language = "English",
volume = "49",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "8",
}