| 森林过火面积的遥感测算方法 |
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| 引用本文： | 易浩若,纪平.森林过火面积的遥感测算方法[J].遥感技术与应用,1998,13(2):10-14. |
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| 作者姓名： | 易浩若 纪平 |
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| 作者单位： | (中国林业科学研究院资源信息研究所 北京 100091) |
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| 摘 要： | 根据对近年来多次特大森林火灾和相应的气象卫星资料的分析,提出利用NOAA/AVHRR数据测算森林大火的过火面积的四种方法,即灰度修正像元法、植被修正像元法、坐标法和蔓延法。在GIS地面信息数据库支持下,利用这4种方法能准确、快速地计算出过火面积。经今春应急评估试运行验证,森林大火过火面积测算精度达90%。
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| 关 键 词： | 森林火灾 NOAA/AVHRR数据 过火面积测算 |
| 收稿时间： | 1998-01-04 |
| 修稿时间： | 1998年1月4日 |
The Methods of Evaluating Burned Area of Forest Fire by Using Remote Sensing |
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| YI Haoruo,JI Ping.The Methods of Evaluating Burned Area of Forest Fire by Using Remote Sensing[J].Remote Sensing Technology and Application,1998,13(2):10-14. |
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| Authors: | YI Haoruo JI Ping |
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| Affiliation: | (Research Institute ofForest Resource Information Technology,The Chinese Academy ofForestry,Beijing100091) |
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| Abstract: | Four methods of evaluating burned area of big forest fire,counting pixels corrected by pixel-value,counting pixels corrected by NDVI,calculating coordinators of boundary pixels and spreading-method,are presented through analyzing the material about vast area of forest fire in resent years and relative NOAA/AVHRR data.The above methods,based on GIS database,to evaluate the burned area of forest fire are accurate and fast.In this spring,there was a forest fire in the Inner Mongolia,the accuracy of evaluating burned area by using these methods is 90 percent. |
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| Keywords: | Forest fire NOAA/AVHRR data Burned area evaluating |
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