原文名：Atmospheric and spectral corrections for estimating surface albedo from

satellite data using 6S code

发表于：Remote Sensing of Environment 76 (2000) 202-212

利用6S进行卫星数据估算地表发射率的大气和光谱校正

Wenjing Zhao^a,*, Masayuki Tamura^a, Hidenori Takahashi^b

^a信息处理与分析部，社会与环境系统部门，国家环境研究协会，日本环境政府，16-2 Onogawa，筑波，Ibaraki 305-0053,日本

^b北海道大学地球环境科学研究院，Sapporo 060-0810,日本

2000年2月1日接收；2000年11月6日接受

摘要：表面反射率是气候模型一个重要的物理参数，它控制着地表和大气之间的辐射交换。因此，地表反射率的准确量测直接影响到气候模型的结果。相比传统技术，卫星遥感技术为气候模型提供了更加准确的像素级精度的地表反射率估计手段。而大气效应和频带限制是影响卫星传感器进行地表发射率精确估计的两个重要因素。相当多的以及全球化研究所提供的基于物理的研究模型并不是针对某一卫星场景、测试站或者目标类建立的，因此其结果也并非最优化。6S大气代码可以完成这一使命。因此，本文正是提出了一种利用6S进行卫星数据估算地表发射率的大气和光谱校正的方法。该方法在日本钏路泥潭的测试结果与其他估计、观测的反射率进行了对比研究。结果表明卫星推算出的反射率和真实场观测到的结果吻合良好，平均误差为6%。在光谱到宽波段的反射率转换（光谱校正）中，结果表明补偿的频带限制要优于扩展的频带限制，平均误差从25%降到6%。结果还说明，要想更加准确的估计地表反射率，需要更高的光谱分辨率。

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