光学学报, 2020, 40 (6): 0601003, 网络出版: 2020-03-06
大气CO2反演误差分析与精度验证 下载: 1015次
Atmospheric CO2 Inversion Error Analysis and Accuracy Verification
大气光学 温室气体监测仪 总碳柱观测网 反演 验证 atmospheric optics greenhouse-gases monitor instrument total carbon column observing network inversion verification
摘要
搭载于高分五号卫星平台的大气主要温室气体监测仪(GMI)主要用于测量大气温室气体CO2和CH4的柱浓度。为保证GMI遥感数据温室气体的反演精度,需分析温室气体反演中气溶胶等因素对反演结果的影响,并以此作为反演算法校正的要素。在此基础上,利用全球总碳柱观测网(TCCON)站点对GMI反演结果进行验证。结果表明,GMI近红外反演结果误差范围为-1.06±2.93×10 -6(-0.26±0.72%),反演精度在1%以内。
Abstract
In this study, the atmosphere major greenhouse-gases monitor instrument (GMI) loaded on the GF-5 satellite platform is used to measure the column concentration of atmospheric greenhouse gases CO2 and CH4. To ensure the accuracy of the greenhouse gas inversion in GMI remote sensing data, the influence of aerosol and other factors in greenhouse gas inversion on inversion results is analyzed and used as the correction factor of the inversion algorithm. Given this, the GMI inversion results are verified using the total carbon column observing network (TCCON) site. Furthermore, results show that the GMI near-infrared inversion results exhibit a low bias with -1.06±2.93×10 -6(-0.26±0.72%), and the inversion accuracy is within 1%.
李勤勤, 王先华, 叶函函, 吴时超, 李超, 王晓迪. 大气CO2反演误差分析与精度验证[J]. 光学学报, 2020, 40(6): 0601003. Qinqin Li, Xianhua Wang, Hanhan Ye, Shichao Wu, Chao Li, Xiaodi Wang. Atmospheric CO2 Inversion Error Analysis and Accuracy Verification[J]. Acta Optica Sinica, 2020, 40(6): 0601003.