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    Monitoring of Land Surface Temperature in Krasnoyarsk and its Suburban Area Based on Landsat 8 Satellite Data
[Text] : статья / Aleksandra K. Matuzko, Oleg E. Yakubailik // Журнал Сибирского федерального университета. Серия: Техника и технологии. - 2018. - Т. 11, № 8. - P934-945, DOI 10.17516/1999-494X-0115 . - ISSN 1999-494X
   Перевод заглавия: Мониторинг температуры земной поверхности в окрестностях Красноярского края на основе данных спутника Landsat 8
УДК

Аннотация: The problem of temperature anomalies is typical for all major cities in the world. Space thermal images are a powerful source of information for analyzing and determining outlines of temperature anomalies within a single territory. Determination of the nature and boundaries of temperature anomalies will help to understand the causes of the unfavorable ecological situation in Krasnoyarsk: where, in addition to high industrial emissions, atmospheric processes also exert their influence, which lead to the fact that impurities linger and concentrate over the city. The development of advanced space technologies allows the collection of a variety of diverse data more efficiently and at a lower cost than the organization of an appropriate ground network of observation posts and points. One of the most interesting and important indicators about the surface of the Earth is the land surface temperature. Land surface temperature is determined by the balance of incoming and outgoing energy. The main and overwhelming source of energy coming to the surface of the Earth is solar radiation. The 10th and 11th bands of Landsat 8 satellite measure thermal infrared radiation (TIR). The thermal infrared range is particularly useful for determining the temperature difference between the city and surrounding rural areas, and for studying the phenomenon of an urban heat island (UHI).
Проблема температурных аномалий характерна для всех крупных городов мира. Космические тепловые снимки являются весомым источником информации для анализа и определения контуров температурных аномалий в пределах одной территории. Определение природы и границ температурных аномалий поможет понять причины неблагоприятной экологической ситуации в Красноярске: где, помимо высоких промышленных выбросов, оказывают влияние атмосферные процессы, которые приводят к тому, что примеси задерживаются и концентрируются над городом. Развитие передовых космических технологий позволяет осуществлять сбор множества разнообразных данных более эффективно и с меньшими затратами, чем организация соответствующей наземной сети пунктов и постов наблюдения. Одним из наиболее интересных и важных показателей о поверхности Земли служит температура земной поверхности. Температура на поверхности Земли определяется балансом приходящей и уходящей энергии. Основным и подавляющим источником энергии, поступающей к поверхности Земли, является солнечное излучение. Каналы 10-й и 11-й Landsat 8 работают в том же диапазоне, что и канал TIR на более ранних спутниках программы Landsat. Каналы 10-й и 11-й спутника Landsat 8 измеряют тепловое инфракрасное излучение или TIR (thermal infrared). Разрешение для тепловых каналов 100 м.

РИНЦ

Держатели документа:
Institute of Computational Modelling SB RAS

Доп.точки доступа:
Matuzko, Aleksandra K.; Матузко А.К.; Yakubailik, Oleg E.; Якубайлик О.Э.

    Моделирование летнего гидротермического режима в нижнем бьефе Красноярской ГЭС
[Текст] : статья / Николай Яковлевич Шапарев, Юрий Иванович Шокин // Вычислительные технологии. - 2018. - Т. 23, № 6. - С. 107-114, DOI 10.25743/ICT.2018.23.6.010 . - ISSN 1560-7534
   Перевод заглавия: Modelling of summertime hydrothermal regime in the downstream pool of Krasnoyarsk hydroelectric power station

Кл.слова (ненормированные):
река Енисей -- температура воды -- моделирование -- water temperature -- Yenisei River -- modelling

Аннотация: Предлагается модель летнего гидротермического режима р. Енисей в нижнем бьефе Красноярской ГЭС на основе детерминированного подхода. На теплообмен воды с окружающей средой влияют следующие физические процессы: поглощение водой прямой и рассеянной солнечной радиации; поглощение поверхностью воды тепловой инфракрасной радиации (ТИР), исходящей из атмосферы; излучение поверхностью воды ТИР; испарительный и конвективный теплообмен. Результаты моделирования сравниваются с температурными данными, полученными с гидропостов.
Here we consider the summertime hydrothermal regime in a 124-km river occurring within the interval (reach) downstream of the Krasnoyarsk HPP on July 3, 2016 based on the deterministic modelling approach. The reach area is divided by 4 cross-section lines (0.5, 40, 77, 124 km) with gauging stations at the first, second and forth section lines to measure water temperature. Temperature measurements at the gauging stations are taken at time (at hour 08:00 and 20:00). Water temperature at the first gauging station was 7.2<sup> ∘ </sup> C and remained constant during the time period under consideration. To carry out mathematical simulation by analogy with other authors, we use the Fourier equation. We have proposed a simple model for simulating summertime hydrothermal regime of a river based on calculation of water temperature in a coordinate system moving with water. The physically based estimation of water heat budget takes into account absorption of solar radiation by water surface, emission and absorption of atmospheric thermal infrared radiation (TIR) by water, convective heating of water as well as heat loss due to evaporative processes. The temporal fluctuation pattern of direct and scattered solar radiation depends on the zenith angle and atmospheric absorption. The dominant water heating factor is solar radiation during the daytime and atmospheric TIR at night. Emits TIR defined by the Stefan-Boltzmann law. Water temperatures 124 km downstream of the Krasnoyarsk HPP on the Yenisei River computed using the proposed model with consideration of morphometric characteristics are close to the recorded temperatures observed at the gauging stations, which proves that the deployed physical-mathematical model providing an adequate description of the actual hydrothermal processes. Our spatial-temporal analysis has revealed no diurnal fluctuations of water temperature, which we attribute to the fact that “cold” water leaving the dam enters the “warm” surrounding environment providing a permanent source of water heating.

РИНЦ

Держатели документа:
Институт вычислительного моделирования СО РАН
Институт вычислительных технологий СО РАН
Сибирский федеральный университет

Доп.точки доступа:
Шапарев, Николай Яковлевич; Shaparev Nikolay Yakovlevich; Шокин, Юрий Иванович; Shokin Yuriy Ivanovich

    Modelling and remote sensing of water temperature of the Yenisei river (Russia)
/ N. Y. Shaparev, Y. I. Shokin, O. E. Yakubailik // IOP Conference Series: Earth and Environmental Science : Institute of Physics Publishing, 2018. - Vol. 211: International Conference and Early Career Scientists School on Environmental Observations, Modeling and Information Systems, ENVIROMIS 2018 (5 July 2018 through 11 July 2018, ) Conference code: 143586, Is. 1, DOI 10.1088/1755-1315/211/1/012022 . -
Аннотация: The summertime hydrothermal regime of the Yenisei River downstream of the Krasnoyarsk hydroelectric power plant is modeled using a remote sensing and deterministic approach. The Fourier equation is used, and the following physical processes contributing to the heat exchange between the water and the surroundings are taken into consideration: the absorption of direct and scattered solar radiation by water, the absorption of downwelling thermal infrared radiation (TIR) from the atmosphere by water surface, TIR back from the water surface, the convection of heat and the heat loss due to evaporation of water. A clear-skies river thermal regime under no wind condition is studied at 32-km downstream the power plant, and the obtained results are compared against remote sensing data. © Published under licence by IOP Publishing Ltd.

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Держатели документа:
Institute of Computational Modelling of the Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/44, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodny pr., 79., Krasnoyarsk, 660041, Russian Federation
Institute of Computational Technologies of the Siberian Branch of the Russian Academy of Sciences, Academician M.A. Lavrentiev avenue, 6., Novosibirsk, 630090, Russian Federation

Доп.точки доступа:
Shaparev, N. Y.; Shokin, Y. I.; Yakubailik, O. E.

    Radiative processes role in the thermal regime of a river
/ N. Y. Shaparev // Proceedings of SPIE - The International Society for Optical Engineering : SPIE, 2019. - Vol. 11208: 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics 2019 (30 June 2019 through 5 July 2019, ) Conference code: 156374. - Ст. 1120802, DOI 10.1117/12.2538261 . -
Аннотация: We use a deterministic approach to simulate summer hydrothermal regime of a stream. Our simple model involves calculating water temperature in a coordinate system moving with the water. The physically based estimation of water heat budget takes into account absorption of solar radiation by water surface, emission of thermal infrared radiation (TIR) by water and absorption of atmospheric TIR, as well as convective heating of water and heat loss due to evaporative processes. The proposed model is applied to simulate stable diurnal thermal regime of the Yenisei River, employing the Fourier equation for mathematical modeling. We assess the contribution of each of the physical processes into water temperature and come up with a stable temporal diurnal thermal regime for the Yenisei River. © 2019 SPIE.

Scopus

Держатели документа:
Institute of Computational Modeling, Federal Research Center, Krasnoyarsk Science Center of SB RAS, Krasnoyarsk, 660036, Russian Federation
National Research Tomsk State University, Tomsk, 634050, Russian Federation

Доп.точки доступа:
Shaparev, N. Y.

    Search of changes in the temperature of urban environment with use of satellite data on the example of the Krasnoyarsk
/ A. A. Gosteva, A. K. Matuzko, O. E. Yakubailik // CEUR Workshop Proceedings : CEUR-WS, 2019. - Vol. 2534: 2019 All-Russian Conference ""Spatial Data Processing for Monitoring of Natural and Anthropogenic Processes"", SDM 2019 (26 August 2019 through 30 August 2019, ) Conference code: 156641. - P401-405 . -
Аннотация: Changes in the urban environment can be detected using satellite images of different spatial resolutions in the visible and far infrared range. Landsat data is currently the most accessible, complete, and open for studying these changes. Thermal imaging is widely used for research and monitoring of man-made objects such as pipelines, urban facilities, industrial facilities and pollution. The paper presents the results of the assessment of the land surface temperature in the Krasnoyarsk city for the two-year period from September 2016 to September 2018 based on the analysis of Landsat-8 satellite images. Copyright © 2019 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0).

Scopus

Держатели документа:
Federal Research Center Krasnoyarsk Science Center of the SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Computational Modelling SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Gosteva, A. A.; Matuzko, A. K.; Yakubailik, O. E.