Muham mademin·Muhammad,Tashpolat·Tiyip,Mamatsawut,et al.Study on Atmospheric Correction of Remote Sensing Data Application Based on 6S Model[J].Research of Soil and Water Conservation,2011,18(03):15-18.
基于6S模型的遥感数据大气校正应用研究
- Title:
- Study on Atmospheric Correction of Remote Sensing Data Application Based on 6S Model
- 关键词:
- 6S模型; 大气校正; 光谱响应特征; 归一化植被指数(NDVI)
- Keywords:
- 6S model; atmospheric correction; spectral response characteristics; normalized difference vegetation index(NDVI)
- 分类号:
- TP79;P422
- 摘要:
- 基于辐射传输理论的大气校正模型，具有明确的物理意义，易于操作，应用广泛。该文首先对Landsat-5 TM图像大气校正参数的确定进行了详尽分析并采用6S模型对图像进行了大气校正，然后从光谱响应曲线、归一化植被指数（NDVI）等方面，探讨了大气校正对TM图像地物光谱响应特征的影响。研究表明，TM图像经大气校正后，地物在可见光，近红外和短波红外波段反射率明显减小；大气校正后的NDVI增幅明显；采用的参数确定方法可为类似研究提供参考与借鉴。
- Abstract:
- Based on the radiative transfer model,atmospheric correction model has specific physical meaning,and it can be applied widely and easily.In this study,firstly the parameter determination on Landsat-5 TM image is analyzed carefully,and the atmospheric correction of the image is carried out with 6S model.Then,influence of atmospheric correction on typical object spectral response characteristics of TM image is discussed on the spectral response curves,the normalized difference vegetation index(NDVI) and visibility,respectively.The results show that:surface reflectance of typical objects decreases evidently after atmospheric correction in visible band,but in near infrared band and shortwave-infrared band surface reflectance increases.NDVI of typical objects increases after atmospheric correction.Finally,methods of the parameter determination here can be used as the reference in similar studies.
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备注/Memo
收稿日期:2010-11-13;改回日期:2010-12-20。
基金项目:国家自然科学基金“干旱区土壤盐渍化微波遥感监测方法研究与验证”（40961025）;国家自然科学基金“干旱区土壤盐渍化多源遥感监测与预警网络传输系统研究”（40901163）
作者简介:买买提依明·买买提（1985- ），男（维吾尔族），新疆人，硕士，研究方向为干旱区资源环境及遥感应用研究。E-mail：mamatemenrs@sina.com
通讯作者:塔西甫拉提·特依拜（1958- ），男（维吾尔族），新疆人，教授，博士，主要研究方向为干旱区资源遥感与3S技术应用。E-mail：tash@xju.edu.cn