基于Landsat 8遥感数据的森林火灾过火面积估算——以贵州毕节市赫章县"3·18"火灾为例
Estimation of Forest Fire Burned Area Based on Landsat 8 Remote Sensing Data——A Case Study of"3·18"Forest Fire in Hezhang County,Bjjie City,Guizhou Province
董奎 1董平 2陈兰3
作者信息
- 1. 毕节市天然林资源保护中心,贵州 毕节 551700
- 2. 四川山海图农林科技有限公司,四川 成都 610081
- 3. 毕节市林业调查规划设计院,贵州 毕节 551700
- 折叠
摘要
以贵州省毕节市赫章县 2021 年 3 月 18 日较大森林火灾为例,利用火灾前后Landsat 8 遥感数据及ENVI遥感数据处理分析软件,通过图像预处理、计算归一化植被指数和燃烧面积指数等方法,提取森林火灾过火区域,计算过火面积.结果表明,利用Landsat 8 数据能够较好地提取森林火灾过火区域,过火面积估算准确率达96.2%.
Abstract
Taking the forest fire in Hezhang County,Bijie City,Guizhou Province on March 18,2021 as an example,this paper used Landsat 8 remote sensing data,and remote sensing data processing and anal-ysis software(ENVI),to extract and calculate the burned area based on image preprocessing,calculation of normalized vegetation index and burned area index.The results showed that the burned area of forest fire could be extracted well by using Landsat 8 data,and the accuracy of burned area was 96.2%.
关键词
Landsat/8遥感数据/森林火灾/过火面积/归一化植被指数/燃烧面积指数Key words
Landsat 8 remote sensing data/forest fire/burned area/normalized vegetation index/burn-ed area index引用本文复制引用
出版年
2024
NETL
NSTL
万方数据