TY  - JOUR
PY  - 2022//
TI  - Modeling wildfire spread with an irregular graph network
JO  - Fire (Basel, Switzerland)
A1  - Jiang, Wenyu
A1  - Wang, Fei
A1  - Su, Guofeng
A1  - Li, Xin
A1  - Wang, Guanning
A1  - Zheng, Xinxin
A1  - Wang, Ting
A1  - Meng, Qingxiang
SP  - e185
EP  - e185
VL  - 5
IS  - 6
N2  - The wildfire prediction model is crucial for accurate rescue and rapid evacuation. Existing models mainly adopt regular grids or fire perimeters to describe the wildfire landscape. However, these models have difficulty in explicitly demonstrating the local spread details, especially in a complex landscape. In this paper, we propose a wildfire spread model with an irregular graph network (IGN). This model implemented an IGN generation algorithm to characterize the wildland landscape with a variable scale, adaptively encoding complex regions with dense nodes and simple regions with sparse nodes. Then, a deep learning-based spread model is designed to calculate the spread duration of each graph edge under variable environmental conditions. Comparative experiments between the IGN model and widely used fire simulation models were conducted on a real wildfire in Getty, California, USA. The results show that the IGN model can accurately and explicitly describe the spatiotemporal characteristics of the wildfire spread in a novel graph form while maintaining competitive simulation refinement and computational efficiency (Jaccard: 0.587, SM: 0.740, OA: 0.800).<p />  <p>Language: en</p>
LA  - en
SN  - 2571-6255
UR  - http://dx.doi.org/10.3390/fire5060185
ID  - ref1
ER  -