摘要
卫星遥感数据的大气辐射校正是定量遥感的基础与关键。目前大气辐射校正方法的局限性已经严重影响了定量遥感科学进展。鉴于此,COST模型在TM/ETM数据上的实用性逐步得到学者们的共识。本文详细阐述了COST模型的理论及其算法,模型参数的确定及其获取途径。COST模型在完成TM/ETM卫星遥感数据大气辐射纠正的同时实现了地表反射率反演,为TM/ETM卫星遥感数据的应用研究奠定了基础。文章进一步借助地面光谱仪的实测数据对研究区地表反射率反演结果进行了空间维和光谱维的分析验证,结果认为COST模型完全能够满足卫星遥感数据基本应用研究的需要。
Atmospheric and radiometric correction is the basis and key for quantificational remote sensing. Nowaday the limitation of the method of atmospheric and radiometric correction had been strictly effecting the development of RS science. Herein above statement, common understanding had been building on the utility of COST model. The paper expatiated the COST model method and arithmetic, and how to confirm the parameters. With COST model finishing atmospheric and radiometric correction of TM/ETM, retrieve of earth reflection had been carried out. This work established the foundation of application study of the remote sensing data of TM/ETM. Furthermore the paper analysiced and tested the retrieved result from spational and spectral dimentions by the surveying data of ground spectrum apparatus. It is considering that the COST model completely meet the need of application study of remote sensing data of TM/ETM.
出处
《山东农业大学学报（自然科学版）》
CSCD
北大核心
2005年第4期545-551,共7页
Journal of Shandong Agricultural University：Natural Science Edition
基金
文章由国家自然科学基金项目(40271007)资助
关键词
大气辐射校正
COST模型
地表相对反射率
卫星遥感数据
atmospheric and radiometric correction
COST model
earth relative reflection
Landsat Thematic Mapper data
