采用夜间数据反演海面风速已经取得较好的研究成果.由于受到太阳直射光和天空背景辐射等因素的影响,星载激光雷达信号在白天的信噪比较差.基于已有的反演关系模型,采用CALIPSO星载激光雷达532 nm通道2007年1月、4月、7月和10月的单脉冲昼夜数据,将大气气溶胶光学厚度(AOD)数据用来做大气双程透过率校正,以准同步AMSR-E v7版本的海面风速为真值,进行反演海面风速的昼夜对比研究.研究结果表明,采用白天数据反演海面风速是可行的.通过采用恰当的关系模型来反演白天风速可以提高探测精度.
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