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大气科学  2000 

多波段光度计遥感气溶胶误差分析及订正

DOI: 10.3878/j.issn.1006-9895.2000.06.12

Keywords: 光度计,大气光学厚度,气溶胶

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Abstract:

结合1998年实际遥感气溶胶所用多波段光度计,详细分析了由于仪器定标、仪器视场角、滤光片宽度、气体吸收等方面带来的误差,并提出了相应的订正方法,特别是针对水汽的吸收,提出了三波段差分吸收订正法。结果表明,通过误差订正,遥感精度有很大提高,气溶胶光学厚度在0.1左右,相对误差不超过10%,中等大气浑浊度情况下相对误差2%左右。

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