北京航空航天大学学报 ›› 2010, Vol. 36 ›› Issue (10): 1221-1224.

• 论文 • 上一篇    下一篇

澳大利亚东南部森林山火HJ卫星遥感监测

李家国1, 顾行发1, 余涛1, 魏斌2   

  1. 1. 中国科学院 遥感应用研究所,北京 100101;
    2. 环保部卫星环境应用中心,北京 100029
  • 收稿日期:2009-08-10 出版日期:2010-10-31 发布日期:2010-11-12
  • 作者简介:李家国(1982-),男,安徽巢湖人,博士生,jacoli@126.com.
  • 基金资助:

    863计划资助项目(2006AA12Z113); 中国科学院知识创新工程重要方向资助项目(kzcx2-yw-303); 国防科技工业民用专项科研技术研究资助项目(07K00100KJ)

Detection of Australian southeast forest fire using HJ satellite

Li Jiaguo1, Gu Xingfa1, Yu Tao1, Wei Bin2   

  1. 1. Institute of Remote Sensing Applications, Chinese Academy of Science, Beijing 100101, China;
    2. Satellite Environmental Application Center, Ministry of Environmental Protection, Beijing 100029, China
  • Received:2009-08-10 Online:2010-10-31 Published:2010-11-12

摘要: 以2009年2月发生在澳大利亚东南部的森林山火为研究对象,利用HJ-1B遥感影像识别森林山火,分析HJ-1B在林火灾害事故中的监测能力,通过对HJ-1B IRS B07设计参数及数据特点进行分析,提出适用于HJ-1B卫星林火监测的归一化火点指数(Ku)算法.研究表明:Ku值大于0.40为潜在可能的火点像元,云耀斑和地表虚假高温点是影响林火监测的主要噪声.由于HJ-1B没有获取到研究区域未着火前的影像数据,利用MODIS(Moderate-resolution Imaging Spectroradiometer)空间分辨率为250 m的通道1和通道2计算植被指数,其结果能较好的应用于HJ-1B林火监测算法中.通过对比分析HJ-1B林火监测结果和MODIS林火产品MOD14认为,HJ-1B能更好的监测出澳大利亚东南部森林火灾,反映出火灾的局部空间分布和细节特征.

Abstract: By detecting forest fire happened in Australian southeast from remote sensing imagery to demonstrate the application ability of HJ-1B satellite in disaster. After analyzing the character of HJ-1B IRS B07 system parameters and data trait, a normalized forest fire index, Ku, was constructed. Pixels are potential fore fire points where Ku are greater than 0.40. Cloud dazzling points and surface high-temperature points are the main noises disturbing the fire point detection. MODIS 250m spatial resolution band 1 and band 2 were used to get normalized difference vegetation index(NDVI) for the lack of HJ-1B data earlier than the fire happened date and its results are suitable for the forest fire detection. The compare of detection results by HJ-1B and moderate-resolution imaging spectroradiometer(MODIS) fire product, MOD14, shows that HJ-1B is better than MOD14 on presenting fire spatial structure for the reason of its higher spatial resolution, 300m.

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