航空多角度偏振观测京津唐地区大气气溶胶

Aerosol Retrieval from Airborne Multi-Angle Polarized Measurements in Beijing-Tianjin-Tangshan Region

航空大气多角度偏振辐射计(AMPR)可以获取多角度、多波段和偏振辐射观测数据,将AMPR装载于遥感飞机对京津唐地区(工业发达、人口集中)的气溶胶进行观测,经过数据处理和反演,得到该地区的气溶胶光学厚度。反演过程中,以大气校正后的1640 nm波段观测数据作为下垫面的地表偏振信息,结合查找表的方法,综合利用多角度光谱偏振辐射信息,反演得到气溶胶的光学厚度。反演结果与同步地基观测数据对比,结果表明AMPR具备观测典型区域大气气溶胶的能力。

The Advanced Atmosphere Multi-angle Polarization Radiometer（AMPR） was developed by Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences.It provides multi-spectral,multi-angle and polarized data and can be used in the aerosol optical parameters detection.AMPR can be equipped on remote sensing plane to detect aerosol.Industry in Beijing,Tianjin and Tangshan area are well developed,the observation of aerosol in the region are representative.In inversion process,the underlying surface polarization reflectance was obtained by atmospheric correction of observation data at 1640 nm waveband.Combined with the look-up table method and the utilization of multi-angle,multi-band and polarization information,aerosol optical thickness was obtained.After the comparison of inversion results and the synchronous ground observation data,the results show that AMPR has the ability to observe aerosol in typical region.