基于卫星遥感与降雨的山火风险评估  

Wildfire risk assessment based on satellite remote sensing and precipitation

作　　者：张校志 李陶[1] 陈志国[1] 刘艳[2] 陈孝明 阮羚 

机构地区：[1]武汉大学卫星导航定位研究中心,湖北武汉430079 [2]中国电力科学研究院高电压研究所,湖北武汉430074 [3]国网湖北省电力公司电力科学研究院,湖北武汉430077

出　　处：《消防科学与技术》2018年第1期106-110,共5页Fire Science and Technology

基　　金：国家自然科学基金资助项目"高分辨率雷达卫星监测特高压铁塔及导线形变关键技术研究"(41274048);国家自然科学基金资助项目"InSAR与GNSS融合的土石坝表面变形监测理论与方法研究"(41674032)

摘　　要：研究了湖北省超特高压输电走廊区域的地表植被覆盖及植被归一化指数(NDVI)、卫星遥感火点、降雨量等因素与湖北冬春季输电走廊山火发生之间的关系,提出了一种月度输电走廊山火风险评估模型。该模型以基于地表植被覆盖和历史火点密度的湖北省山火风险平均结果为基础,引入每月的MODIS NDVI和当月的湖北地区89个气象站降雨量数据作为变量,以实际走廊山火事故作为评价指标,构建评价函数。利用湖北地区2015年冬春季输电走廊山火故障数据进行验证,结果表明该模型获取的山火评估结果与故障数据具有较好的一致性。Analyzed the correlations of Normalized Difference Vegetation Index （NDVI）, historical wildfire, precipitation and other factors between wildfire along extra-high voltage power lines in Huhei during winter and spring, on basis of these a monthly wild fire risk assessment model was proposed. The model derived from an average assessment that integrales land covers and historical wildfire density, introduced monthly MODIS NDVI and precipitation data from 89 stations in Hubei province as variable, and actual fire accident as evaluating indicator, to build the evaluating function. Fire accidents data of Hubei in 2015 winter and spring were utilized for verification, and the result showed that these assessments were convincing in timeliness and in correspond with the fire accident data.

关 键 词：输电走廊 遥感 山火风险 降水量 地表覆盖 

分 类 号：X913.4[环境科学与工程—安全科学] S762[农业科学—森林保护学]