基于AVHRR、MODIS和MVRIS数据的辐射雾变化检测与分析

Fog Dynamic Change Detection Based on AVHRR,MODIS and MVIRS Data

摘要: 以过境时间不同的NOAA-16/AVHRR、NOAA-17/AVHRR、FY1-D/MVRIS、TERRA/MODIS和AQUA/MODIS五种遥感影像数据组成一组序列影像,对发生在湖北省2005年2月4日的辐射雾进行了一次变化检测与分析。经地面验证,序列影像数据在雾变化检测的研究方面具有很大的潜力,检测结果动态地显示了该次大雾的形成、发展、稳定、消散的过程。将检测结果与该区域的DEM和水系矢量图结合分析发现,二者在辐射雾的变化发展过程中起着非常重要的作用。

Abstract: Images from AVHRR,MODIS,and MVIRS provides an excellent time series data set for fog detection because of their different ascending node.The potential of this series data in fog detection are researched in Hubei Province on 2005-02-04.Validated from ground truth data,this series data has great potential in fog detection.According to the results,DEM and the water system vector graph of this area,the characteristic of dynamic changes of fog is analyzed.