鄱阳湖HJ-1A/B卫星CCD影像大气校正研究  

Atmospheric Correction Method for Poyang Lake HJ-1A /B CCD Image

作　　者：于之锋[1,2] 陈晓玲[1,3] 田礼乔[1] 周斌[2] 

机构地区：[1]武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号430079 [2]杭州师范大学遥感与地球科学研究院,杭州市文一西路1378号311121 [3]江西师范大学鄱阳湖湿地与流域研究教育部重点实验室,南昌市紫阳大道99号330022

出　　处：《武汉大学学报（信息科学版）》2012年第9期1078-1082,共5页Geomatics and Information Science of Wuhan University

基　　金：国家973计划资助项目(2011CB707106);国家自然科学基金资助项目(40906092;41071261;40971193;41101415);国家自然基金委创新研究群体科学基金资助项目(41021061);中央高校基本科研业务费专项资金资助项目;杭州师范大学遥感与地球科学研究院开放基金资助项目(PDKF2010YG06);中国博士后科学基金资助项目(20100480861)

摘　　要：以准同步的Terra/MODIS反演的气溶胶为辅助,采用FLAASH模型对2009-10-24鄱阳湖HJ-1A/B卫星CCD影像进行大气校正处理。结果表明,大气影响可以被有效去除,在水体遥感反射率较高的红、绿波段,大气校正精度较高,平均相对误差分别为13.4%和9.8%;而在水体遥感反射率较低的近红外、蓝波段,大气校正精度较低,这可能与波段不同的信噪比和陆地邻近像元效应有关。The CCD sensors on board HJ-1A/B satellites launched by China can capture images with high spatial and temporal resolution,which makes them have great potential in quantitatively monitoring the water quality of inland lakes by remote sensing technologies.The atmospheric correction problem is the first important issue to be resolved.With the assistance of quasi-synchronous Terra/MODIS aerosol data,the HJ-1A/B CCD image on October 24,2009 was done the atmospheric correction processing using FLAASH model.The atmospheric effects have been effectively removed,and the atmospheric correction method worked well at the red and green bands with relatively high remote sending reflectance,while it worked poorly at the near-infrared and blue bands with relatively low remote sensing reflectance.It may be related with signal to noise ratio and land adjacent pixels effect at different bands.This study can provide reference for the atmospheric correction of inland lake HJ-1A/B satellites CCD images.

关 键 词：Terra/MODIS HJ-1A/BCCD 气溶胶 大气校正 鄱阳湖 

分 类 号：P237.3[天文地球—摄影测量与遥感]