ORIGINAL RESEARCH
Spatial Environmental Modeling for Wildfire
Progression Accelerating Extent Analysis
Using Geo-Informatics
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Research Unit of Geo-Informatics for Local Development, Department of Geo-Informatics Faculty of Informatics,
Mahasarakham University, Thailand
Submission date: 2019-09-15
Final revision date: 2019-12-05
Acceptance date: 2019-12-09
Online publication date: 2020-04-07
Publication date: 2020-05-12
Corresponding author
Patiwat Littidej
Geo-informatics, Geo-informatics, Research unit of Geo-informatics for Local Development , Department of Geo-informatics, Thailand, 44150, Mahasarakham, Thailand
Pol. J. Environ. Stud. 2020;29(5):3249-3261
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ABSTRACT
The fire situation during the dry season of Thailand, in the last 10 years, has become more severe.
The Tad Sung Forest Park area has reported the intensity of wildfires for the past 7 years. This research
has applied the geographic weighted regression (GWR) model to generate a spatial relationship analysis
model for wildfires. This research aims to create a spatial model to analyze the risk of hazardous areas
against wildfire and to analyze the factors that affect forest fire risks in order to protect against wildfires.
The service area (SALY) model was obtained through the first approach. The wildfire-GWR results of the
study showed that the model can predict at the R2 level greater than 82% and varies according to the
sub-area boundaries. Factors affecting the acceleration of wildfires are (positive coefficient) the digital
elevation model (DEM), normalized burn ratio (NBR), land surface temperature (LST) and (negative
coefficient) normalized difference vegetation index (NDVI), slope and aspect. In addition, the distance
from the road factor has little effect on wildfire intensity in most areas. The results of the research
are used to create a risk-sensitive map of wildfires through surveillance by importing the independent
variable factors in the model and using it as a prototype of the same kind of space.