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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Izvestiya, Atmospheric and Oceanic Physics</journal-id><journal-title-group><journal-title xml:lang="en">Izvestiya, Atmospheric and Oceanic Physics</journal-title><trans-title-group xml:lang="ru"><trans-title>Известия РАН. Физика атмосферы и океана</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0002-3515</issn><issn publication-format="electronic">3034-6487</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">658298</article-id><article-id pub-id-type="doi">10.31857/S0002351523040132</article-id><article-id pub-id-type="edn">YOYESH</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Criterion of Applicability of the Theory of Long Waves for Description of Dispersive Tsunami Waves</article-title><trans-title-group xml:lang="ru"><trans-title>Критерий применимости теории длинных волн для описания диспергирующих волн цунами</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nosov</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Носов</surname><given-names>М. А.</given-names></name></name-alternatives><email>m.a.nosov@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zarubina</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Зарубина</surname><given-names>А. И.</given-names></name></name-alternatives><email>zarubina.ai17@physics.msu.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Physics Faculty, Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">Физический факультет МГУ им. М.В. Ломоносова</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Marine Geology and Geophysics, Far Eastern Branch of Russian Academy of Science</institution></aff><aff><institution xml:lang="ru">Институт морской геологии и геофизики Дальневосточного отделения РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-07-01" publication-format="electronic"><day>01</day><month>07</month><year>2023</year></pub-date><volume>59</volume><issue>4</issue><fpage>485</fpage><lpage>496</lpage><history><date date-type="received" iso-8601-date="2025-02-20"><day>20</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, М.А. Носов, А.И. Зарубина</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, М.А. Носов, А.И. Зарубина</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">М.А. Носов, А.И. Зарубина</copyright-holder><copyright-holder xml:lang="ru">М.А. Носов, А.И. Зарубина</copyright-holder><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.eco-vector.com/0002-3515/article/view/658298">https://journals.eco-vector.com/0002-3515/article/view/658298</self-uri><abstract xml:lang="en"><p id="idm45181325530208">Conditions for the applicability of the dispersionless theory of long waves for reproducing dispersive tsunami waves are analyzed. As a quantitative criterion, the dispersive destruction distance is proposed for use, which is a value that is uniquely determined by the wavelength that dominates in the spectrum of the initial elevation of the water surface in the tsunami source, and the correction factor \(\alpha .\) The physical meaning of the \(\alpha \) value is the fraction of the wavelength by which the dispersive wave packet lags behind the long wave front when propagating over a distance equal to the dispersive destruction distance. Using the model residual displacement of the bottom surface, the geometrical parameters of which vary randomly, under the assumption of instantaneous generation of waves and taking into account the smoothing effect of the water layer, the Monte Carlo method establishes a relationship between the accuracy of wave reproduction by the dispersionless model and the quantity \(\alpha .\) Using the “\(\alpha \) coefficient scale”, the ranking of the criteria that were previously proposed by other authors was performed.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181325528032">Проанализированы условия применимости бездисперсионной теории длинных волн для воспроизведения диспергирующих волн цунами. В качестве количественного критерия предложена к использованию дистанция дисперсионного разрушения, – величина, которая однозначно определяется длиной волны, доминирующей в спектре начального возвышения водной поверхности в очаге цунами, и корректирующим коэффициентом \(\alpha \). Физический смысл величины \(\alpha \) – доля длины волны, на которую диспергирующий волновой пакет отстанет от фронта длинной волны, при распространении на расстояние, равное дистанции дисперсионного разрушения. С использованием модельного остаточного смещения поверхности дна, геометрические параметры которого варьируются случайным образом, в рамках предположения о мгновенной генерации волн и с учетом сглаживающего эффекта водного слоя методом Монте-Карло установлена связь между точностью воспроизведения волн бездисперсионной моделью и величиной \(\alpha \). С использованием “шкалы коэффициента \(\alpha \)” выполнено ранжирование критериев, которые были предложены ранее другими авторами.</p></trans-abstract><kwd-group xml:lang="en"><kwd>tsunami propagation</kwd><kwd>phase dispersion</kwd><kwd>long waves</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>распространение цунами</kwd><kwd>фазовая дисперсия</kwd><kwd>длинные волны</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Доброхотов С.Ю., Назайкинский В.Е., Тироцци Б. О методе осреднения для дифференциальных операторов с осциллирующими коэффициентами // Докл. РАН. 2015. Т. 461. № 5. С. 516–520.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Куликов Е.А., Медведев П.П., Лаппо С.С. Регистрация из космоса цунами 26 декабря 2004 г. в Индийском океане // Докл. РАН. 2005. Т. 401. № 4. С. 537–542.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Носов М.А. 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