DOI: 10.1016/j.jag.2015.05.006
Scopus记录号: 2-s2.0-84943605716
论文题名: Fire danger assessment in Iran based on geospatial information
作者: Eskandari S ; , Chuvieco E
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2015
卷: 42 起始页码: 57
结束页码: 64
语种: 英语
英文关键词: Fire ignition probability
; Fire propagation probability
; Geographic information system
; Iran
Scopus关键词: database
; fire
; GIS
; hazard assessment
; numerical model
; probability
; satellite data
; spatial analysis
; Iran
英文摘要: Fire danger assessment is a vital issue to alleviate the impacts of wildland fires. In this study, a fire danger assessment system is proposed, which extensively uses geographical databases to characterize the spatial variations of fire danger conditions in Iran. This assessment requires three steps: (i) generation of the required input variables, (ii) methods to integrate those variables for creating synthetic indices and (iii) validation of those indices versus fire occurrence data. This fire danger model is based on previous works but adapted to Iranian conditions. It includes an estimation of the fire ignition potential (both considering human and climatic factors) and fire propagation potential. The former was generated from a logistic regression approach based on a wide range of input variables. The fire propagation probability was estimated from the Flammap fire behavior model. A first stage for validation of our fire danger system was based on comparing the estimated danger values to actual fire occurrence, based on satellite detected active fires and burned areas. The logistic regression model for fire ignition probability estimated 72.7% of true ignitions. Detected hotspots occurred more frequently in areas with higher fire ignition probability (average value: 0.65) than non hotspots (average value: 0.4). Propagation probability showed higher values for areas with higher proportion of burned area (r = 0.68, p < 0.001). © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79571
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Forestry, Sari Agricultural Sciences and Natural Resources University, Kilometer 9, Darya Road, Sari, Iran; Department of Geology, Geography and Environment, University of Alcala, Colegios 2, Alcala de Henares, Spain
Recommended Citation:
Eskandari S,, Chuvieco E. Fire danger assessment in Iran based on geospatial information[J]. International Journal of Applied Earth Observation and Geoinformation,2015-01-01,42