Rapid Conjugate Appearance of the Giant Ionospheric Lamb Wave Signatures in the Northern Hemisphere After Hunga‐Tonga Volcano Eruptions
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- Jia‐Ting Lin
- Department of Earth Sciences National Cheng Kung University Tainan Taiwan
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- Panthalingal K. Rajesh
- Department of Earth Sciences National Cheng Kung University Tainan Taiwan
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- Charles C. H. Lin
- Department of Earth Sciences National Cheng Kung University Tainan Taiwan
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- Min‐Yang Chou
- NASA Goddard Space Flight Center Community Coordinated Modeling Center Greenbelt MD USA
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- Jann‐Yenq Liu
- Center for Astronautical Physics and Engineering National Central University Taoyuan Taiwan
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- Jia Yue
- NASA Goddard Space Flight Center Community Coordinated Modeling Center Greenbelt MD USA
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- Tung‐Yuan Hsiao
- Nuclear Science and Technology Development Center National Tsing Hua University Hsinchu Taiwan
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- Ho‐Fang Tsai
- Department of Earth Sciences National Cheng Kung University Tainan Taiwan
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- Hoi‐Man Chao
- Department of Earth Sciences National Cheng Kung University Tainan Taiwan
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- Mu‐Min Kung
- Department of Earth Sciences National Cheng Kung University Tainan Taiwan
書誌事項
- 公開日
- 2022-04-25
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1029/2022gl098222
- 公開者
- American Geophysical Union (AGU)
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説明
<jats:title>Abstract</jats:title><jats:p>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.</jats:p>
収録刊行物
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- Geophysical Research Letters
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Geophysical Research Letters 49 (8), e2022GL098222-, 2022-04-25
American Geophysical Union (AGU)
