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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">658283</article-id><article-id pub-id-type="doi">10.31857/S0002351523050085</article-id><article-id pub-id-type="edn">HBBAFE</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">Stability of the Vertical Distribution of Dust Aerosol in Light and Moderate Winds</article-title><trans-title-group xml:lang="ru"><trans-title>Устойчивость вертикального распределения пылевого аэрозоля при слабых и умеренных ветрах</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Malinovskaya</surname><given-names>Е. A.</given-names></name><name xml:lang="ru"><surname>Малиновская</surname><given-names>Е. А.</given-names></name></name-alternatives><email>elen_am@inbox.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chkhetiani</surname><given-names>O. G.</given-names></name><name xml:lang="ru"><surname>Чхетиани</surname><given-names>О. Г.</given-names></name></name-alternatives><email>elen_am@inbox.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Golitsyn</surname><given-names>G. S.</given-names></name><name xml:lang="ru"><surname>Голицын</surname><given-names>Г. С.</given-names></name></name-alternatives><email>elen_am@inbox.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lebedev</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Лебедев</surname><given-names>В. А.</given-names></name></name-alternatives><email>elen_am@inbox.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт физики атмосферы им. А.М. Обухова РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-09-01" publication-format="electronic"><day>01</day><month>09</month><year>2023</year></pub-date><volume>59</volume><issue>5</issue><fpage>623</fpage><lpage>634</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, Е.А. Малиновская, О.Г. Чхетиани, Г.С. Голицын, В.А. Лебедев</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Е.А. Малиновская, О.Г. Чхетиани, Г.С. Голицын, В.А. Лебедев</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Е.А. Малиновская, О.Г. Чхетиани, Г.С. Голицын, В.А. Лебедев</copyright-holder><copyright-holder xml:lang="ru">Е.А. Малиновская, О.Г. Чхетиани, Г.С. Голицын, В.А. Лебедев</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/658283">https://journals.eco-vector.com/0002-3515/article/view/658283</self-uri><abstract xml:lang="en"><p id="idm45181323993024">The profiles of dust aerosol mass concentration obtained with multilevel (0.2, 0.4, 0.8, 1.6, and 3.2 m) daytime measurements in arid conditions in 2020–2022 show a power dependence on height. We distinguish three main types of changes in concentration with height: a) in low wind (degrees are close to –0.5); b) spike changes in concentration when wind increases (degrees reach and exceed –1); c) inversions (concentration increases with height at two or three lower levels of measurements): weak – about –20 mkg/cm<sup>3</sup>, significant – more than 50 mkg/cm<sup>3</sup>. The power dependence of –0.5 is explained by the collective effect of the rise of the ensemble of closely located bubbles of air warmed around the dust particles. In weak and moderate winds, this mode is more common. Burst changes in concentration are associated with the emergence of turbulent structures.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181323990160">Профили массовой концентрации пылевого аэрозоля, полученные при многоуровневых (0.2, 0.4, 0.8, 1.6 и 3.2 м) дневных измерениях в аридных условиях в 2020–2022 г., демонстрируют степенную зависимость от высоты \({{z}^{{ - \alpha }}}\). Выделяются три основных типа изменений концентрации с высотой: а) при слабом ветре – степени близки к –0.5; б) всплесковое изменение концентрации при усилении ветра – степени достигают –1 и могут принимать более низкие значения; в) инверсии – рост концентрации с высотой на двух-трех нижних уровнях измерений: слабые – около –20 мкг/м<sup>3</sup>, значительные – больше 50 мкг/м<sup>3</sup>. Степенная зависимость –0.5 объясняется коллективным эффектом подъема ансамбля близко расположенных пузырьков прогретого вокруг пылинок воздуха. При слабых и умеренных ветрах этот режим наблюдается чаще. Всплесковые изменения концентрации обусловлены возникновением турбулентных структур.</p></trans-abstract><kwd-group xml:lang="en"><kwd>dust aerosol</kwd><kwd>wind and convective transport</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>пылевой аэрозоль</kwd><kwd>ветровой и конвективный вынос</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Баренблатт Г.И., Голицын Г.С. Локальная структура развитых пыльных бурь. М.: МГУ. 1973. 44 с.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Бютнер Э.К. Динамика приповерхностного слоя воздуха. Л.: Гидрометиздат, 1978. 156 с.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Васильченко И.В. Приближенный термодинамический анализ локальных восходящих токов в атмосфере // Тр. ГГО. Вып. 72. 1957. С. 3–18.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Вульфсон Н.И. Исследование конвективных движений в свободной атмосфере. 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