Место работы автора, адрес/электронная почта: Институт мерзлотоведения им. П. И. Мельникова СО РАН ; 677010, г. Якутск, ул. Мерзлотная, 36 ; e-mail: nikita.tananaev@gmail.com ; http://mpi.ysn.ru/
Ученая степень, ученое звание: канд. геогр. наук
Область научных интересов: Гидрология криолитозоны, сток взвешенных наносов, флювиальная геоморфология, органическое вещество в водотоках криолитозоны, гидротехнические мероприятия в криолитозоне, моделирование гидрологических процессов, статистическая гидрология
ID Автора: SPIN-код: 1859-8831, РИНЦ AuthorID: 168435
Количество страниц: 8 с.
Extratropical cyclones over the Sakha Republic (Yakutia) bring rains and reduce the probability of forest res, but can cause fast rain ood events caused by heavy precipitation. In this study, recurrence of cyclonic events over the Sakha Republic (Yakutia) in summer months between 1950 and 2022 is considered. Recurrence of cyclonic events was de ned as the count of cyclone centers over Yakutia or subregions at a standard time of observations. Extratropical cyclone centers database from University of Manitoba (Canada) based on ERA5 reanalysis was used in this study. Cyclonic weather over the territory of the Sakha Republic (Yakutia) persists for 27.5 days on average. The largest count of cyclonic events is noted in the North-Eastern and North-Western sub-regions, while the smallest is in the Southern and Central sub-regions. Across summer months, cyclones are most active in June in all regions except for the Southern sub-region. Here, increased July cyclonic activity is determined by conditions favorable for atmospheric blocking, limited zonal transport promoting the northward intrusion of southern cyclones. There is no pronounced trend in the frequency of occurrence of cyclones except for some regions and months: Western Area, June, increasing; the Sakha Republic (Yakutia), August, decreasing. An absolute minimum in the number of cyclonic events was established for 2019-2021, which, as we believe, was one of the main reasons for the maximum of forest re activity in the Sakha Republic (Yakutia) observed in these years, along with the Lena River extremely low ows of 2019. An analysis of the circulation conditions leading to such extremes will make it possible to assess the risk of recurrence of similar situations under the future climate.
Игнатьева, Ю. И. Повторяемость циклонов над территорией Республики Саха (Якутия) в летние месяцы / Ю. И. Игнатьева, Н. И. Тананаев ; Северо-Восточный федеральный университет им. М. К. Аммосова, Камчатский государственный университет им. Витуса Беринга // Вестник Северо-Восточного федерального университета им. М. К. Аммосова. - 2024. - N 2 (34). - C. 46-53. - DOI: 10.25587/2587-8751-2024-2-46-53
DOI: 10.25587/2587-8751-2024-2-46-53
Количество страниц: 7 с.
In Russia, the year 2021 saw some of the largest forest fires in the country in decades. The area covered by fire in the Sakha Republic (Yakutia) amounted to almost 8 million hectares. The official cause was considered to be unauthorized burning of dry grass on agricultural lands. Other factors influencing the growth of the number of fires and the area of their spread should be considered. This article analyzes the impact of climate change on the frequency and severity of forest fires. The effects of climate change on forest ecosystems, the possible increase in the probability of forest fires and the amount of economic damage from the emergency situation in recent years were analyzed. The paper also presents an analysis of changes in the average monthly temperature on the territory of the Sakha Republic (Yakutia) according to climate modeling data, based on which possible changes in the number of forest fires due to temperature changes were identified. Recommendations for risk reduction and adaptation to changing climatic conditions in the context of forest fires are proposed.
Влияние климатических изменений на частоту и интенсивность лесных пожаров: перспективы, последствия и риски / П. О. Постникова, С. П. Парникова, Н. И. Тананаев [и др.] ; Республиканский лицей-интернат, Северо-Восточный федеральный университет им. М. К. Аммосова // Вестник Северо-Восточного федерального университета им. М. К. Аммосова. Серия "Экономика. Социология. Культурология". - 2024. - N 1 (33). - C. 56-62. - DOI: 10.25587/2587-8778-2024-1-56-62
DOI: 10.25587/2587-8778-2024-1-56-62