基于GEMI算法提取森林火灾迹地研究

摘要

基于MODIS数据在森林火灾迹地识别研究中,国内外学者利用各种植被指数算法对大区域火灾迹地损毁程度进行评估,并取得了一定的效果,但对潜在的火灾迹地进行侦测识别方面的研究还相对滞后.为此,利用GEMI指数算法编写程序,构建CEMI指数,设定相关阈值.通过大量的实验研究发现,该算法可有效突出显示火灾迹地.%Based on MODIS data and using a variety of vegetation index algorithm, domestic and foreign scholars have conducted a damage assessment for large regional fire slash, and have achieved a certain effect, but the study on detection of potential fire have been lagging behind. This study took GEMI Index algorithm to set programming, build CEMI index and threshold, and found that the algorithm was effective to highlight the fire slash by a large number of experimental studies.