风生海中气泡对海色遥感大气校正的影响及定量修正

海中气泡对海水后向散射系数和反射比有不可忽略的贡献，但在迄今为止的海色遥感业务化算法中尚未考虑海中气泡的影响。风浪破碎是海中气泡的主要成因。申请人的前期研究发现：MODIS大气校正得到的遥感反射比数据产品在风速较大情况下存在明显误差。本项目拟利用长时间序列的现场和卫星观测数据，进一步深入研究风生海中气泡对大气校正数据产品（遥感反射比和气溶胶光学厚度）的影响。在分析海中气泡反射比光谱的基础上，利用中国海海洋光学现场实验数据，给出大气校正中海中气泡的定量修正方法。本项目的研究将对完善海色遥感反演理论，提高海色遥感大气校正精度具有重要意义。

Oceanic air bubbles have non-negligible contributions to seawater backscattering coefficient and reflectance. However, the effects of oceanic air bubbles have been neglected in operational algorithm for remote sensing of ocean color. In the previous study it was found that there was a significant error in remote-sensing reflectance after atmospheric correction of MODIS imagery in the case of high wind speed. This porject is to do further research on the effects of wind- generated air bubbles on products of atmospheric correction (i.e.,remote-sensing reflectance and aerosol optical depth) using long-term field and satellite observations. Based on analysis of spectral reflectance of oceanic air bubbles,a quantitative correction of oceanic air bubbles in atmospheric correction algorithm is to be given using ocean optics field data in China seas. This project is significant to improving the retrival theory of ocean color remote snesing and the precision of atmospheric correction of ocean color imagery.