Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 90761 10.2205/2025ES000976 pttsvb Спецвыпуск: "Наука о данных, геоинформатика и системный анализ в изучении Земли" Special Issue: “Data Science, Geoinformatics and Systems Analysis in Geosciences” Спецвыпуск: "Наука о данных, геоинформатика и системный анализ в изучении Земли" Identification of Icings Spreading Patterns in Selenga Middle Mountains by Methods of Geoinformation Analysis Identification of Icings Spreading Patterns in Selenga Middle Mountains by Methods of Geoinformation Analysis https://orcid.org/0000-0001-9365-7340 Черных Владимир Николаевич Chernykh Vladimir Nikolaevich geosibir@yandex.ru

кандидат географических наук;

candidate of geographical sciences;

 https://orcid.org/0000-0001-8340-7268 Цыдыпов Баир Зугдырович Tsydypov Bair Zugdyrovich bz61@mail.ru

кандидат технических наук;

candidate of technical sciences;

 https://orcid.org/0000-0002-2282-7848 Аюржанаев Александр Андреевич Ayurzhanaev Alexander Andreevich aaayurzhanaev@yandex.ru

кандидат технических наук;

candidate of technical sciences;

 https://orcid.org/0000-0003-3428-6724 Жарникова Маргарита Андреевна Zharnikova Margarita Andreevna rita_zharnikova@mail.ru

кандидат географических наук;

candidate of geographical sciences;

 https://orcid.org/0000-0002-4099-7226 Содномов Батор Валерьевич Sodnomov Bator Valeryevich sodnomov@binm.ru https://orcid.org/0000-0001-6411-3985 Алымбаева Жаргалма Баторовна Alymbaeva Zhargalma Batorovna alymbaeva@binm.ru

кандидат биологических наук;

candidate of sciences in biology;

 Байкальский институт природопользования СО РАН Россия Baikal Institute of Nature Management SB RAS Russian Federation Байкальский институт природопользования СО РАН Улан-Удэ Россия Baikal Institute of Nature Management SB RAS Ulan-Ude Russian Federation Байкальский институт природопользования СО РАН Россия Baikal Institute of Nature Management SB RAS Russian Federation Байкальский институт природопользования СО РАН Россия Baikal Institute of Nature Management SB RAS Russian Federation Байкальский институт природопользования СО РАН Россия Baikal Institute of Nature Management SB RAS Russian Federation Байкальский институт природопользования СО РАН Россия Baikal Institute of Nature Management SB RAS Russian Federation 23 05 2025 23 05 2025 25 2 1 7 15 11 2024 15 04 2025 https://rjes.ru/en/nauka/article/90761/view

The purpose of this work is to determine the main regularities of icing distribution in the Selenga middle mountains. The objectives of the study included mapping of icings using Landsat imagery and geoinformation analysis of their spatial differentiation. The geoinformation analysis of the distribution of icings in the Selenga mid-mountain depending on various environmental factors (tectonics, relief, permafrost, meteorological indicators) revealed the main regularities of their formation. The relation of the glaciers to different categories according to the main classification features was determined. Icings of the Selenga mid-mountain are divided into 4 size classes (medium, large, very large and giant), 2 main genetic types are identified according to the prevailing sources of supply (groundwater and spring icings), the number of slope and valley icings is determined. The role of relief and snow cover influence on the distribution of icings in the territory was assessed. It has been established that in the current climatic conditions in the Selenga middle mountains 7.7 thousand icings are formed, most of which (70%) belong to groundwater icings. The maximum number of glaciers is observed in areas with a transitional type of permafrost distribution, while valley glaciers prevail in mountainous areas at altitudes from 850 to 1000 m. They are formed along watercourses in intermountain hollows and in the spurs of mountain ranges.

The purpose of this work is to determine the main regularities of icing distribution in the Selenga middle mountains. The objectives of the study included mapping of icings using Landsat imagery and geoinformation analysis of their spatial differentiation. The geoinformation analysis of the distribution of icings in the Selenga mid-mountain depending on various environmental factors (tectonics, relief, permafrost, meteorological indicators) revealed the main regularities of their formation. The relation of the glaciers to different categories according to the main classification features was determined. Icings of the Selenga mid-mountain are divided into 4 size classes (medium, large, very large and giant), 2 main genetic types are identified according to the prevailing sources of supply (groundwater and spring icings), the number of slope and valley icings is determined. The role of relief and snow cover influence on the distribution of icings in the territory was assessed. It has been established that in the current climatic conditions in the Selenga middle mountains 7.7 thousand icings are formed, most of which (70%) belong to groundwater icings. The maximum number of glaciers is observed in areas with a transitional type of permafrost distribution, while valley glaciers prevail in mountainous areas at altitudes from 850 to 1000 m. They are formed along watercourses in intermountain hollows and in the spurs of mountain ranges.

 icing permafrost groundwater terrain Selenga mid-mountains snow cover tectonic faults geoinformation analysis icing permafrost groundwater terrain Selenga mid-mountains snow cover tectonic faults geoinformation analysis The work was financially supported by the Russian Science Foundation, project No. 23-27-00402 “Icings of the northern (Russian) part of the Selenga River basin”. The work was financially supported by the Russian Science Foundation, project No. 23-27-00402 “Icings of the northern (Russian) part of the Selenga River basin”.

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