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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">geophystech</journal-id><journal-title-group><journal-title xml:lang="ru">Геофизические технологии</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Geophysical Technologies</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2619-1563</issn><publisher><publisher-name>IPGG SB RAS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18303/2619-1563-2024-3-46</article-id><article-id custom-type="elpub" pub-id-type="custom">geophystech-369</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Анализ подходов решения прямой задачи на основе сравнения результатов двух алгоритмов сейсмической томографии</article-title><trans-title-group xml:lang="en"><trans-title>Analysis of approaches to solving a forward problem based on a comparison of the results of two seismic tomography algorithms</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8410-4012</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Потапова</surname><given-names>К. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Potapova</surname><given-names>K. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Потапова Кристина Юрьевна – младший научный сотрудник НОЦ НГУ. Основные научные интересы: сейсмическая лучевая томография, итерационные алгоритмы лучевой томографии</p><p>630090, Новосибирск, ул. Пирогова, 1, Россия; 630090, Новосибирск, просп. Акад. Коптюга, 3</p></bio><bio xml:lang="en"><p>Kristina Yu. Potapova</p><p>Pirogova Str., 1, Novosibirsk, 630090; Koptyug Ave., 3, Novosibirsk, 630090</p></bio><email xlink:type="simple">PotapovaKY@ipgg.sbras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4324-3240</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абраменков</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Abramenkov</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Абраменков Сергей Сергеевич – кандидат физико-математических наук, научный сотрудник лаборатории обработки и анализа сейсмических данных научно-образовательного центра “Газпромнефть-НГУ”. Основные интересы: обработка сейсмических данных, физические механизмы сейсмичности, анализ когерентности волнового поля</p><p>630090, Новосибирск, ул. Пирогова, 1, Россия; 630090, Новосибирск, просп. Акад. Коптюга, 3</p></bio><bio xml:lang="en"><p>Pirogova Str., 1, Novosibirsk, 630090; Koptyug Ave., 3, Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7752-5898</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернышов</surname><given-names>Г. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernyshov</surname><given-names>G. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чернышов Глеб Станиславович – научный сотрудник лаборатории динамических проблем сейсмики. Основные научные интересы: сейсмическая лучевая томография, обработка данных вибрационной сейсморазведки, контроль качества сейсмических данных, метод отраженных волн</p><p>630090, Новосибирск, ул. Пирогова, 1, Россия; 630090, Новосибирск, просп. Акад. Коптюга, 3</p></bio><bio xml:lang="en"><p>Pirogova Str., 1, Novosibirsk, 630090; Koptyug Ave., 3, Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5672-7813</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дергач</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Dergach</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дергач Петр Александрович – научный сотрудник лаборатории динамических проблем сейсмики. Основные научные интересы: сейсмический мониторинг, локальная сейсмология, сейсмометрия, инженерная сейсморазведка</p><p>630090, Новосибирск, просп. Акад. Коптюга, 3</p></bio><bio xml:lang="en"><p>Koptyug Ave., 3, Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4181-8365</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Медведь</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Medved</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Медведь Ирина Викторовна – заведующая лабораторией обработки и анализа сейсмических данных НОЦ ГПН НГУ. Старший научный сотрудник лаборатории сейсмической томографии. Основные научные интересы: сейсмическая томография, структура коры и мантии, коллизионные процессы, эволюция Земли</p><p>630090, Новосибирск, ул. Пирогова, 1, Россия; 630090, Новосибирск, просп. Акад. Коптюга, 3</p></bio><bio xml:lang="en"><p>Pirogova Str., 1, Novosibirsk, 630090; Koptyug Ave., 3, Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7489-9731</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ступина</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Stupina</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ступина Татьяна Александровна – кандидат физико-математических наук, заведующая лабораторией сейсмической томографии. Основные научные интересы: геостатистика, обработка и анализ сейсмических данных, методы построения оценок качества моделей</p><p>630090, Новосибирск, просп. Акад. Коптюга, 3</p></bio><bio xml:lang="en"><p>Koptyug Ave., 3, Novosibirsk, 630090</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Новосибирский государственный университет; Институт нефтегазовой геологии и геофизики им. А.А. Трофимука СО РАН<country>Россия</country></aff><aff xml:lang="en">Novosibirsk State University; Trofimuk Institute of Petroleum Geology and Geophysics, SB RAS<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Институт нефтегазовой геологии и геофизики им. А.А. Трофимука СО РАН<country>Россия</country></aff><aff xml:lang="en">Trofimuk Institute of Petroleum Geology and Geophysics, SB RAS<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>11</day><month>12</month><year>2024</year></pub-date><volume>0</volume><issue>3</issue><fpage>46</fpage><lpage>64</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Потапова К.Ю., Абраменков С.С., Чернышов Г.С., Дергач П.А., Медведь И.В., Ступина Т.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Потапова К.Ю., Абраменков С.С., Чернышов Г.С., Дергач П.А., Медведь И.В., Ступина Т.А.</copyright-holder><copyright-holder xml:lang="en">Potapova K.Y., Abramenkov S.S., Chernyshov G.S., Dergach P.A., Medved I.V., Stupina T.A.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.rjgt.ru/jour/article/view/369">https://www.rjgt.ru/jour/article/view/369</self-uri><abstract><p>Метод лучевой сейсмической томографии позволяет строить модели аномалий скорости сейсмических волн в среде и выдвигать гипотезы о ее геологическом строении. В процессе томографической инверсии выбранный способ и качество решения прямой задачи существенно влияют на итоговый результат, который для одного и того же набора данных может различаться. Цель данной работы состоит в исследовании влияния метода решения прямой задачи на результат инверсии на примере двух алгоритмов: PROFIT (трассирование методом изгиба луча) и ST3D (трассирование через решение уравнения эйконала) по полевым данным (п. Бельтир, Республика Алтай, 2021 г.).</p></abstract><trans-abstract xml:lang="en"><p>The seismic ray tomography method provides a way to construct models of velocity anomalies in the geological medium to provide hypotheses about structure beneath. In the tomographic inversion process the chosen approach and quality of the forward problem solution significantly affects final result which may vary for the same dataset. The aim of this paper is to study the influence of the choice in forward problem solving method on the inversion result using two algorithms  as an example: PROFIT (ray-bending technique) and ST3D (tracing via eikonal equation solution), using field data (Beltir, Altai Republic, 2021).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сейсмическая томография</kwd><kwd>трассирование методом изгиба луча</kwd><kwd>решение уравнения эйконала</kwd><kwd>инверсия</kwd><kwd>сейсмическая структура</kwd><kwd>объемные волны</kwd></kwd-group><kwd-group xml:lang="en"><kwd>seismic tomography</kwd><kwd>ray-bending tracing</kwd><kwd>eikonal equation solution</kwd><kwd>inversion</kwd><kwd>seismic structure</kwd><kwd>body waves</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Обработка данных проведена в рамках государственного задания по проекту ФНИ FWZZ-2022-0017. Сравнительный анализ результатов был выполнен при поддержке проекта FSUS-2022-0019.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The study was carried out as part of government assignment to the Russian Academy of Sciences in basic research (Project FWZZ-2022-0017) and within the framework of the state assignment of the Laboratory of Processing and Analysis of Seismic Data of NSU No. FSUS 2022-0019.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Боровских А.В. Уравнение эйконала в неоднородной среде // Доклады Академии наук. 2003. Т. 391, № 5. С. 587–590.</mixed-citation><mixed-citation xml:lang="en">Borovskikh A.V. The Eikonal equation in an inhomogeneous medium // Doklady Mathematics. 2003. Vol. 68 (1). 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