期刊名称：American Journal of Geographic Information System
印刷版ISSN：2163-1131
电子版ISSN：2163-114X
出版年度：2013
卷号：2
期号：3
页码：47-65
DOI：10.5923/j.ajgis.20130203.03
语种：English
出版社：Scientific & Academic Publishing Co.
摘要：Modelling bushfire spread is full of challenge owing to its complexity. A novel and accurate manner of integrating satellite imagery with digital elevation model to model large scale bushfire has been proposed. In this modelling, the burning zone and smouldering zone were already classified in the digital image in terms of the difference of gray level of each colour component and the separated time interval was generated. The technique of indexing the same observed objects between two and three dimensional systems was illustrated in detail. By means of such a technique, the classified data from satellite imagery successfully integrated with the corresponding digital elevation model. A simple model for determining the direction of bushfire spread with a constant average velocity in landscapes was then proposed. A modelling bushfire spread as an application was performed in digital elevation model. Reversely displaying selected information which gained and implemented in digital elevation model has been achieved in the original remote sensing imagery to verify the results of modelling. Several desired features of modelling bushfires shown in results accurately appeared.
关键词：Bushfires Modeling; Digital Elevation Model; Digital Image Processing; Linear Indexing
