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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">vmait</journal-id><journal-title-group><journal-title xml:lang="ru">Computational Mathematics and Information Technologies</journal-title><trans-title-group xml:lang="en"><trans-title>Computational Mathematics and Information Technologies</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2587-8999</issn><publisher><publisher-name>Донской государственный технический университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">2587-8999-2026-10-3-49-57</article-id><article-id custom-type="elpub" pub-id-type="custom">vmait-247</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>ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INFORMATION TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Индексный алгоритм детекции признаков водной эрозии почв по мультиспектральным данным Sentinel-2 и его верификация на натурных данных территорий Ростовской области и Краснодарского края</article-title><trans-title-group xml:lang="en"><trans-title>An Index-Based Algorithm for Detecting Water Soil Erosion Indicators from Sentinel-2 Multispectral Data and Its Verification on Field Data of Rostov Oblast and Krasnodar Krai</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-3239-6150</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Благин</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Blagin</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вячеслав Анатолиевич Благин, аспирант кафедры математики и информатики </p><p>344003, г. Ростов-на-Дону, пл. Гагарина, 1 </p></bio><bio xml:lang="en"><p>Vyacheslav A. Blagin, Postgraduate Student of the Department of Mathematics and Informatics</p><p>1, Gagarin Sq., Rostov-on-Don, 344003 </p></bio><email xlink:type="simple">blagin.inbox@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-2270-5011</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Берая</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Beraia</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Александрович Берая, аспирант кафедры математики и информатики </p><p>344003,г. Ростов-на-Дону, пл. Гагарина, 1</p></bio><bio xml:lang="en"><p>Vladimir A. Beraia, Postgraduate Student of the Department of Mathematics and Informatics </p><p>1, Gagarin Sq., Rostov-on-Don, 344003 </p></bio><email xlink:type="simple">vberia@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Донской государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Don State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>05</day><month>10</month><year>2026</year></pub-date><volume>10</volume><issue>3</issue><fpage>49</fpage><lpage>57</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Благин В.А., Берая В.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Благин В.А., Берая В.А.</copyright-holder><copyright-holder xml:lang="en">Blagin V.A., Beraia V.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" 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.cmit-journal.ru/jour/article/view/247">https://www.cmit-journal.ru/jour/article/view/247</self-uri><abstract><p>Введение. Работа посвящена разработке и валидации индексного алгоритма выявления признаков водной эрозии почв по данным дистанционного зондирования Земли (ДЗЗ) Sentinel-2, рассматриваемого как первый практический этап построения гибридной физико-математической модели переноса массы с нейросетевой параметрической идентификацией. Материалы и методы. Алгоритм основан на совместном анализе временных рядов вегетационного индекса NDVI и индекса оголенности почвы BSI с последующей детекцией пространственных изменений (ΔBSI) с пороговой фильтрацией по 90-му процентилю. Работоспособность алгоритма проверена на модельных (синтетических) данных, после чего проведена верификация на натурных данных — реальных снимках Sentinel-2 для двух тестовых территорий — Каменского района Ростовской области и окрестностей с. Молдаванское Крымского района Краснодарского края — с временным охватом 10 дат за 2024 год. Результаты исследования. Авторами установлено, что алгоритм устойчиво выделяет пространственнолокализованные зоны роста оголенности почвы. Обсуждение. Определено ограничение метода, связанное с неразличимостью эрозионного и агротехнического происхождения оголения, а также намечены пути его устранения (привязка к цифровой модели рельефа, многолетний анализ). Заключение. Разработан и валидирован индексный алгоритм детекции признаков водной эрозии почв по временным рядам мультиспектральных снимков Sentinel-2, основанный на совместном анализе индексов NDVI и BSI с пространственной детекцией изменений. Алгоритм верифицирован на модельных данных и применен к реальным снимкам для двух тестовых территорий юга России, что подтвердило его работоспособность при одновременном выявлении принципиального ограничения — неразличимости эрозионного и агротехнического происхождения оголения почвы в пределах одного сезона наблюдений.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. The paper presents the development and testing of an index-based algorithm for detecting indicators of soil erosion by water from Sentinel-2 remote sensing data, considered as the first practical stage in constructing a hybrid physics-based mass-transport model with neural-network parameter identification. Materials and Methods. The algorithm relies on joint analysis of time series of the Normalized Difference Vegetation Index (NDVI) and the Bare Soil Index (BSI), followed by spatial change detection (ΔBSI) with threshold filtering at the 90th percentile. The algorithm was first validated on synthetic data and then applied to real Sentinel-2 imagery for two test sites – the Kamensky District of Rostov Oblast and the vicinity of Moldovanskoye village, Krymsky District, Krasnodar Krai – covering 10 dates within 2024. Results. The algorithm is shown to consistently identify spatially localised zones of increasing bare-soil exposure. Discussion. A key limitation – the inability to distinguish erosion-related exposure from ordinary agrotechnical bare soil — is discussed, along with directions for resolving it (digital elevation model overlay, multi-year analysis). Conclusion. An index-based algorithm for detecting indicators of water-induced soil erosion from Sentinel-2 multispectral time series was developed and validated. Verification on synthetic data and application to two real test areas in southern Russia confirmed its operability while demonstrating the need to separate erosion-related changes from agricultural soil exposure in subsequent model development.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>дистанционное зондирование Земли</kwd><kwd>Sentinel-2</kwd><kwd>водная эрозия почв</kwd><kwd>вегетационный индекс NDVI</kwd><kwd>индекс оголенности почвы BSI</kwd><kwd>детекция изменений</kwd><kwd>математическое моделирование</kwd><kwd>нейросетевая идентификация параметров</kwd></kwd-group><kwd-group xml:lang="en"><kwd>remote sensing</kwd><kwd>Sentinel-2</kwd><kwd>water soil erosion</kwd><kwd>NDVI vegetation index</kwd><kwd>BSI bare soil index</kwd><kwd>change detection</kwd><kwd>mathematical modelling</kwd><kwd>neural network parameter identification</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Сухинов А.И., Чистяков А.Е., Проценко Е.А. 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