Atmospheric correction of MERIS data on the black pixel assumption in oxygen and water vapor absorption bands. [J]. Journal of Remote Sensing 17(4):768-787(2013)
Atmospheric correction of MERIS data on the black pixel assumption in oxygen and water vapor absorption bands. [J]. Journal of Remote Sensing 17(4):768-787(2013) DOI: 10.11834/jrs.20132102.
Atmospheric correction of MERIS data on the black pixel assumption in oxygen and water vapor absorption bands
3次校正的均方根百分比RMSP(Root Mean Square of Percentage)、都在25%以下;与Beam自带的二类水体大气校正算法、气溶胶厚度辅助的6S大气校正以及改进的暗像元算法进行精度比较
结果表明该方法校正精度较高。由于该方法不需要同步实测气溶胶数据
因此具有一定的适用性。
Abstract
A Medium-Resolution Imaging Spectrometer ( MERIS) sensor
with reasonable ocean color bands and a high spatial resolution of 300 m
has considerable potential with respect to the monitoring of inland waters. In the quantitative retrieval of water environmental parameters by using a remote sensing image
accurate atmospheric correction is very significant. In the present study
oxygen and water vapor absorption bands are used for improving the traditional black pixel assumption based on the near-infrared bands. The method of calculating aerosol parameters through MERIS Level 2p data is developed; this method is assessed using MERIS Level 1p data recorded on Nov. 11
2007; Nov. 20
2008; and April 25
2009. Meanwhile
the in situ measured data are used for a comparison with the modeled values. The obtained results show that the proposed method is efficacious with RMSP of less than 25% . Another important work is also carried out
that is
a comparison of the proposed method with other algorithms such as a case Ⅱ atmospheric correction algorithm embedded in a MERIS ( Beam) processor
aerosol-thickness-aided 6S
and modified black pixel algorithm. The results indicate that the proposed algorithm has certain applicability considering
because it is independent of the synchronous measured aerosol data.