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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">serp</journal-id><journal-title-group><journal-title xml:lang="ru">Эрозия почв и русловые процессы</journal-title><trans-title-group xml:lang="en"><trans-title>Soil erosion and river channel processes</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">3034-4638</issn><issn pub-type="epub">3033-9588</issn><publisher><publisher-name>Издательство "Наука</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.71367/3034-4638-2025-2-3-42-56</article-id><article-id custom-type="elpub" pub-id-type="custom">serp-44</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>ПОКАЗАТЕЛИ АСИММЕТРИЧНОСТИ ИЗЛУЧИН И МЕАНДРОВ</article-title><trans-title-group xml:lang="en"><trans-title>INDICATORS OF ASYMMETRY OF BENDS AND MEANDERS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Замышляев</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Zamyshlyaev</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Замышляев Виталий Иванович, кандидат технических наук, научный сотрудник отдела русловых процессов</p><p>199004, Санкт-Петербург, 2-я линия В.О., д. 23</p></bio><bio xml:lang="en"><p>Zamyshlyaev Vitaly Ivanovich, Candidate of technical sciences (PhD), Researcher at the Department of Channel Processes</p><p>199004, St. Petersburg, Vasilyevsky Island, 2nd line, 23</p></bio><email xlink:type="simple">viza51@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Государственный гидрологический институт»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>FSBI «State Hydrological Institute»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>04</day><month>11</month><year>2025</year></pub-date><volume>0</volume><issue>3</issue><fpage>42</fpage><lpage>56</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Замышляев В.И., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Замышляев В.И.</copyright-holder><copyright-holder xml:lang="en">Zamyshlyaev V.I.</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://journal.sediment.ru/jour/article/view/44">https://journal.sediment.ru/jour/article/view/44</self-uri><abstract><p>Вопрос о параметрах, характеризующих асимметричность излучин и/или меандров, заслуживает специального рассмотрения, поскольку большинство излучин и/или меандров имеют очевидно асимметричные плановые формы, и на это обстоятельство указывали многие исследователи. Кроме того, показатели асимметричности излучин и/или меандров входят в ряд выражений, применяемых для аппроксимации плановых форм осевой линии русла. В настоящей работе описаны некоторые индексы, используемые в качестве показателей асимметричности излучин, уточнены параметры, входящие в определяющие эти индексы формулы, и произведено их сравнение с позиций полноты описания асимметрии речных излучин и/или меандров и удобства их использования при анализе планиметрии меандрирующих русел.</p></abstract><trans-abstract xml:lang="en"><p>The question of the parameters characterizing the asymmetry of bends and meanders deserves special consideration, since most bends and meanders have obviously asymmetrical plan forms, and this fact has been noted by many researchers. In addition, the asymmetry indices of bends (meanders) are included in a number of expressions used to approximate the plan forms of the channel centerline. This paper discusses some indicators used as asymmetry indices of bends, specifies the parameters included in the formulas determining these indices, and compares them from the standpoint of the completeness of the description of the asymmetry of river bends (meanders) and the convenience of use in analyzing the planimetry of meandering channels.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>меандрирующее русло</kwd><kwd>измерители планиметрии излучины</kwd><kwd>шаг излучины</kwd><kwd>вершина излучины</kwd><kwd>угол входа</kwd><kwd>угол выхода</kwd><kwd>крылья излучины</kwd></kwd-group><kwd-group xml:lang="en"><kwd>meandering channel</kwd><kwd>systems of bend planimetric indexes</kwd><kwd>bend wavelength</kwd><kwd>bend apex</kwd><kwd>entrance angle</kwd><kwd>exit angle</kwd><kwd>bend wings</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">Гендельман М.М. О формах речных излучин // Сборник работ по гидрологии, № 17, 1982. С. 197–207.</mixed-citation><mixed-citation xml:lang="en">Abad, J.D. Cfd simulations of asymmetric kinoshita-generated meandering bends // The XXXI International Association of Hydraulic Engineering and Research (IAHR) Congress / September 11–16, Seoul, Korea, 2005. 10 p.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Замышляев В.И. Математическое моделирование плановых переформирований русел меандрирующих рек: дисс. … канд. техн. наук. 1982. 184 с.</mixed-citation><mixed-citation xml:lang="en">Carson, M.A., Lapointe, M.F. The inherent asymmetry of river meander planform // Journal of Geology, 91(1), 1983. P. 41–55.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Замышляев В.И. Математическая модель плановых переформирований речного русла // Труды ГГИ, 1983, вып. 288. С. 56–72.</mixed-citation><mixed-citation xml:lang="en">Chalov R.S., Zavadsky A.S., Panin A.V. River meanders. [Scientific editor Chalov, R.S.] Moscow University Press, 2004. 371 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Замышляев В.И. «Меандр» и «излучина» как морфологические единицы планиметрии меандрирующего русла: анализ существующих представлений // Эрозия почв и русловые процессы (в печати). 2025.</mixed-citation><mixed-citation xml:lang="en">Fargue, L. La forme du lit des rivières à fond mobile, Paris: Gauthier-Villars. 1908.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Кондратьев Н.Е. Гидроморфологические основы расчетов свободного меандрирования // Труды ГГИ, 1968, вып. 155. С. 5–38.</mixed-citation><mixed-citation xml:lang="en">Gendel’man, M.M. On the forms of river meanders // Collection of works on hydrology, No. 17, 1982. P. 197–207. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Лелявский С.Н. Введение в речную гидравлику. Л.: Гидрометеоиздат, 1961. 233 с.</mixed-citation><mixed-citation xml:lang="en">Ielpi A., Lapôtre M.G.A., Finotello A., Ghinassi M. Planform-asymmetry and backwater effects on river-cutoff kinematics and clustering // Earth Surface Processes and Landforms. Vol. 46, Iss 2. 2021. P. 357–370. https://doi.org/10.1002/esp.5029</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Савицкий В.А. Об асимметрии речных излучин // Геоморфология. 1995. №3. С. 73–79.</mixed-citation><mixed-citation xml:lang="en">Kinoshita, R. Investigation of channel deformation in Ishi-kari River // Dep. Sci. and Tech., Bur. of Resour., Tech. Rep. 13, Tokyo, Japan. 1961. 174 p.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Чалов Р.С., Завадский А.С., Панин А.В. Речные излучины. М.: изд-во МГУ. 2004. 371 с. 9.</mixed-citation><mixed-citation xml:lang="en">Kondrat’ev N.E. Hydromorphological basis of calculations of free meandering. Tr. GGI [Proceedings of the State Hydrological Institute], 1968, iss. 155, P. 5–38. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Abad, J.D. Cfd simulations of asymmetric kinoshitagenerated meandering bends // The XXXI International Association of Hydraulic Engineering and Research (IAHR) Congress / September 11–16, Seoul, Korea, 2005. 10 p.</mixed-citation><mixed-citation xml:lang="en">Langbein, W.B., Leopold L.B. River meanders—Theory of minimum variance, U.S. Geol. Surv. Prof. Pap., 422H, 1966. P. 1–19.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Carson, M.A., Lapointe, M.F. The inherent asymmetry of river meander planform // Journal of Geology, 91(1), 1983. P. 41–55.</mixed-citation><mixed-citation xml:lang="en">Lelyavsky S.N. Introduction to river hydraulics. – L.: Gidrometeoizdat, 1961. 233 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Fargue, L. La forme du lit des rivières à fond mobile, Paris: Gauthier-Villars. 1908.</mixed-citation><mixed-citation xml:lang="en">Limaye, A.B. A geometric algorithm to identify river meander bends: 2. Test for characteristic shapes. Journal of Geophysical Research: Earth Surface,130, e2024JF007909. 2025. https://doi.org/10.1029/2024JF007909</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Ielpi A., Lapôtre M.G.A., Finotello A., Ghinassi M. Planform-asymmetry and backwater effects on river-cutoff kinematics and clustering // Earth Surface Processes and Landforms. Vol. 46, Iss. 2. 2021. P. 357-370. https://doi.org/10.1002/esp.5029</mixed-citation><mixed-citation xml:lang="en">Lopez Dubon, S., Sgarabotto, A., Lanzoni, S. A curvature-based framework for automated classification of meander bends // Water Resources Research, 61, 2025. https://doi.org/10.1029/2024WR037583</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Kinoshita, R. Investigation of channel deformation in Ishi-kari River // Dep. Sci. and Tech., Bur. of Resour., Tech. Rep. 13, Tokyo, Japan. 1961. 174 p.</mixed-citation><mixed-citation xml:lang="en">Savitsky V.A. On the asymmetry of river bends // Geomorfologiya. 1995. No. 3. P. 73-79. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Langbein, W.B., Leopold L.B. River meanders—Theory of minimum variance, U.S. Geol. Surv. Prof. Pap., 422H, 1966. P. 1–19.</mixed-citation><mixed-citation xml:lang="en">Von Schelling, H. Most frequent particle paths in a plane // Am. Geophys. Union Trans., Vol. 32, 1951, P. 222–226.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Limaye, A.B. A geometric algorithm to identify river meander bends: 2. Test for characteristic shapes. Journal of Geophysical Research: Earth Surface, 130, e2024JF007909. 2025. https://doi.org/10.1029/2024JF007909</mixed-citation><mixed-citation xml:lang="en">Von Schelling, H. Most frequent random walks // Gen. Elec. Co. Rept. 64GL92, Schenectady, N.Y. 1964.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Lopez Dubon, S., Sgarabotto, A., Lanzoni, S. A curvature-based framework for automated classification of meander bends // Water Resources Research, 61, 2025. https://doi.org/10.1029/2024WR037583</mixed-citation><mixed-citation xml:lang="en">Zamyshlyaev V.I. Mathematical modeling of plan re-formations of meandering rivers channels. Diss... kand. texn. nauk. 1982. 184 p. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Von Schelling, H. Most frequent particle paths in a plane // Am. Geophys. Union Trans., Vol. 32, 1951, P. 222–226.</mixed-citation><mixed-citation xml:lang="en">Zamyshlyaev V.I. Mathematical model of plan deformation of river channels // Tr. GGI [Proceedings of the State Hydrological Institute], 1983, iss. 288, P. 56–72. (In Russ.)</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Von Schelling, H. Most frequent random walks // Gen. Elec. Co. Rept. 64GL92, Schenectady, N.Y. 1964.</mixed-citation><mixed-citation xml:lang="en">Zamyshlyaev V.I. “Meander” and “bend” as morphological units of planimetry of a meandering channel: an analysis of existing concepts // E’roziya pochv i ruslovy’e processy (in print). 2025 (In Russ.)</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
