Номер документа в системі: | 355829 |
Автор: | Baranovskiy N. V., Yankovich E. P. |
Назва документа: | Gis-technologies and mathematical simulation to predict lightning-caused forest fire danger = Геоінформаційні технології та математичне моделювання як інструмент прогнозування лісової пожежної небезпеки від гроз |
УДК | 519.6+913(470+571)+004.4+614.84 |
Мова документу | Англійська |
Аннотація | Context. The components of the geoinformation system for monitoring, forecasting and assessment of forest fire danger caused by thunderstorm activity are developed.
Objective of the work is to create an embedded software tool for physically based forecasting, monitoring and evaluation of the probability of forest fire occurrence as a result of the impact of a lightning discharge on a tree trunk.
Method. Structural analysis is used to design elements and information flows inside and outside of the developed geographic information system. Mathematical modeling is used to determine the parameters of tree ignition by the cloud-to-ground lightning discharge. Mathematically, the process of tree trunk heating is described using a system of non-stationary heat conduction equations with a source part responsible for the heat release according to the Joule-Lenz law in the core of the tree trunk. The finite difference method is used to solve the differential heat equation. Finite-difference analogues are solve |
Кількість сторінок | P. 30-40. |