{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,29]],"date-time":"2026-03-29T16:03:57Z","timestamp":1774800237652,"version":"3.50.1"},"reference-count":47,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2023,6,12]],"date-time":"2023-06-12T00:00:00Z","timestamp":1686528000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006769","name":"Russian Science Foundation","doi-asserted-by":"publisher","award":["22-27-00415"],"award-info":[{"award-number":["22-27-00415"]}],"id":[{"id":"10.13039\/501100006769","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The eruption of the Hunga Tonga\u2013Hunga Ha\u2019apai volcano on 15 January 2022 was the first powerful explosive eruption in history to be recorded with high quality by a wide range of geophysical equipment. The atmospheric Lamb wave caused by the explosion repeatedly circled the Earth and served as one of the reasons for the formation of tsunami waves. In this paper, the Lamb wave manifestations are analyzed in the recordings of tsunamimeters, i.e., in data from DONET and DART pressure sensors located in the area of the Japanese Islands. The work is aimed at studying the physics of the formation of pressure variations at the ocean floor in order to develop a method for isolating free gravity waves in records obtained by bottom pressure sensors. Within the framework of shallow water theory, an analysis of the response of the water layer to the atmospheric Lamb wave was performed. This response combines a forced perturbation, the amplitude of which depends on the depth of the ocean, and free gravity waves arising as a result of the restructuring of the forced perturbation on the submarine slopes. Analytical formulas are given for the amplitude and energy of the forced perturbation and free waves arising at the depth jump. With the aid of numerical simulation, the finite length of a slope was revealed to significantly affect the parameters of free waves when exceeding 50 km. The analysis of in situ data (DONET, DART) confirms the validity of theoretical concepts presented in the work. In particular, it is shown that variations of bottom pressure in the deep ocean exceed the amplitude of atmospheric pressure fluctuations in the Lamb wave.<\/jats:p>","DOI":"10.3390\/rs15123071","type":"journal-article","created":{"date-parts":[[2023,6,13]],"date-time":"2023-06-13T02:00:45Z","timestamp":1686621645000},"page":"3071","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Interpretation of Signals Recorded by Ocean-Bottom Pressure Gauges during the Passage of Atmospheric Lamb Wave on 15 January 2022"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7730-9968","authenticated-orcid":false,"given":"Mikhail A.","family":"Nosov","sequence":"first","affiliation":[{"name":"Chair of Physics of Sea and Inland Water, Faculty of Physics, M. V. Lomonosov Moscow State University, Moscow 119991, Russia"},{"name":"Institute of Marine Geology and Geophysics, Far Eastern Branch of Russian Academy of Sciences, Yuzhno-Sakhalinsk 693022, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7261-2634","authenticated-orcid":false,"given":"Sergey V.","family":"Kolesov","sequence":"additional","affiliation":[{"name":"Chair of Physics of Sea and Inland Water, Faculty of Physics, M. V. Lomonosov Moscow State University, Moscow 119991, Russia"},{"name":"Institute of Marine Geology and Geophysics, Far Eastern Branch of Russian Academy of Sciences, Yuzhno-Sakhalinsk 693022, Russia"}]},{"given":"Kirill A.","family":"Sementsov","sequence":"additional","affiliation":[{"name":"Institute of Seismology and Volcanology, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan"}]}],"member":"1968","published-online":{"date-parts":[[2023,6,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"e2022GL098240","DOI":"10.1029\/2022GL098240","article-title":"Numerical simulation of atmospheric Lamb waves generated by the 2022 Hunga-Tonga volcanic eruption","volume":"49","author":"Amores","year":"2022","journal-title":"Geophys. Res. 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