Modeling of systems and processes Modeling of systems and processes Моделирование систем и процессов 2219-0767 90822 10.12737/2219-0767-2024-17-4-7-15 Технические науки Технические науки Modeling of the temperature field in forest fires Моделирование температурного поля при лесных пожарах Асадов Хикмет Гамидович Asadov Hikmet Hamidovich Байрамов Г. З. Bayramov G. Z. Национальное Аэрокосмическое Агентство Баку Азербайджан National Aerospace Agency Baku Azerbaijan Национальное Аэрокосмическое Агентство Россия National Aerospace Agency Russian Federation 27 12 2024 27 12 2024 17 4 7 15 16 11 2024 15 11 2024 https://zh-szf.ru/en/nauka/article/90822/view

Разработана многозональная одномерная модель на основе одномерной Гауссовой модели возгорания в лесу Решена оптимизационная задача вычисления среднеинтегральной температуры в лесу с многозональным расположением огня. Показано, что при использовании гауссовой многозональной модели возгорания среднеинтегральная температура уменьшается с ростом дистанции от края до центра территории многозональных пожаров. Рассмотрена возможность применения одномерной Гауссовой модели однозонального расположения огня для раннего обнаружения возгорания в лесу по эмиссионным и абсорбционным признакам. Показано, что совместное использование этих признаков, в сочетании с Гауссовой моделью позволяет повысить чувствительность обнаружения возгорания в лесу. Предложен эмиссионно-абсорбционный метод раннего обнаружения лесных возгораний. Показано, что чувствительность обнаружения возгорания в предложенном методе выше, чем при одинарном использовании эмиссионного и адсорбционного методов. Предложен комплексный индекс- показатель пожаробезопасности лесов, учитывающий такие факторы как влагосодержание почвы, скорость ветра, высоту местности, отражательный спектр почвы и его зависимость от влагосодержания почвы. Отмечен экстремальный характер предложенного комплексного индекса в зависимости от влагосодержания почвы. Это свойство позволяет сбалансировать доли повышения пожарной безопасности за счет частных критериев безопасности (принцип Парето оптимизации) для достижения максимальной достоверности полученной суммарно-взвешенной оценки

A multi-zone one-dimensional model based on a one-dimensional Gaussian model of fire in the forest has been developed. The optimization problem of calculating the average integral temperature in a forest with a multi-zone location of fire has been solved. It is shown that when using the Gaussian multizonal ignition model, the average integral temperature decreases with increasing distance from the edge to the center of the territory of multizonal fires. The possibility of using a one-dimensional Gaussian model of a single-zone fire location for early detection of fire in the forest by emission and absorption characteristics is considered. It is shown that the combined use of these features, in combination with the Gaussian model, makes it possible to increase the sensitivity of fire detection in the forest. An emission-absorption method for early detection of forest fires is proposed. It is shown that the sensitivity of fire detection in the proposed method is higher than with the single use of emission and adsorption methods. A comprehensive index is proposed - an indicator of forest fire safety, taking into account such factors as soil moisture content, wind speed, terrain height, soil reflective spectrum and its dependence on soil moisture content. The extreme nature of the proposed complex index is noted depending on the moisture content of the soil. This property allows you to balance the proportion of fire safety improvement due to particular safety criteria (Pareto optimization principle) in order to achieve maximum reliability of the resulting total-weighted assessment

 моделирование лесные пожары; эмиссионно-абсорбционный способ раннее обнаружение лесных пожаров многокритериальная оптимизация чувствительность forest fire modeling; emission-absorption method early detection of forest fires multi-criteria optimization sensitivity

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