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MATHEMATICAL MODELING OF HEAT TRANSFER IN THE SOIL LAYER DURING A FOREST FIRE, TAKING INTO ACCOUNT THE DAILY DYNAMICS OF SOIL TEMPERATURE

Nikolay V. Baranovskiy

First published: 2019-06-20https://doi.org/10.5593/sgem2019/3.2/s13.037View metrics

Abstract

Forest fires damage biogeocenoses. Forest fires affect trees, vegetation and soils. This influence can be both positive and negative. The thermal effect of a forest fire on the soil layer is important. It is necessary to develop mathematical models for understanding the processes of thermal effects of a forest fire on the surface soil layer. Earlier, a simple mathematical model was developed which takes into account the given characteristics of a forest fire and heat transfer in the soil layer by conduction. The purpose of the work is mathematical modeling of heat transfer in the soil layer under the influence of a forest fire, taking into account the daily dynamics of soil temperature. Mathematically, the heat transfer in the soil layer is described by a system of non-stationary partial differential equations with corresponding initial and boundary conditions. When setting the boundary conditions, the daily variation of the soil temperature is taken into account. The dependences of the temperature in the vertical layer of the soil at different points during and after exposure to a forest fire are obtained. The results can be applied in the development of information and computing systems for predicting the impact of forest fires on soils. Such systems can be used for geo-ecological monitoring of forests in conditions of active forest fires.

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Title
MATHEMATICAL MODELING OF HEAT TRANSFER IN THE SOIL LAYER DURING A FOREST FIRE, TAKING INTO ACCOUNT THE DAILY DYNAMICS OF SOIL TEMPERATURE
Authors
Nikolay V. Baranovskiy
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Water Resources. Forest, Marine and Ocean Ecosystems
Publisher
STEF92 Technology
Year
2019
Pages
277-284
SWS Citekey
Baranovskiy201913277284
ISSN
1314-2704
ISBN
978-619-7408-82-9
Language
en
Publication type
Conference Paper
Keywords
forest firesoilheat transferdaily soil temperaturemathematical model
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