FY-3A/MERSI气溶胶光学厚度资料在北京及其周围地区的精度评价

大气与环境光学学报 ›› 2017, Vol. 12 ›› Issue (6): 435-445.

FY-3A/MERSI气溶胶光学厚度资料在北京及其周围地区的精度评价

唐维尧1,2, 鲍艳松1,2, 马骁3, 徐徐3, 徐俊杰2, 李冉2,郭斌2, 朱柳桦2, 王富婷2

(1 南京信息工程大学气象灾害教育部重点实验室/气候与环境变化国际合作联合实验室/气象灾害预报预警与评估协同创新中心/中国气象局气溶胶与云降水开放重点实验室，江苏南京，210044;
2 南京信息工程大学大气物理学院，南京，210044;
3 南京信息工程大学大气科学学院，江苏南京，210044)

出版日期:2017-11-28 发布日期:2017-11-13
通讯作者: 唐维尧（1994-），男，贵州安顺人，研究生，主要从事卫星遥感资料同化方面的研究。 E-mail:496504360@qq.com
作者简介:唐维尧（1994-），男，贵州安顺人，研究生，主要从事卫星遥感资料同化方面的研究。
基金资助:
Supported by Six Talent Peaks Project in Jiangsu Province 455(江苏省“六大人才高峰”高层次人才项目, 2015-JY-013), College Student Practice Innovative Training Program of Jiangsu Province(江苏省大学生创新创业训练计划项目, 201510300047), Techno Solutions College Students Scientific Innovative Program of NUIST Atmospheric Physics School(南京信息工程大学大气物理学院天诺基金, 2015TNJY012)

Accuracy Evaluation of FY-3A/MERSI Aerosol Optical Depth Data in Beijing and Its Adjacent Region

TANG Weiyao1,2, BAO Yansong1,2, MA Xiao3, XU Xu3, XU Junjie2, LI Ran2,GUO Bin2, ZHU Liuhua2, WANG Futing2

(1 Key Laboratory of Meteorological Disaster, Ministry of Education/Joint International Research Laboratory of Climate and Environment Change/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/Key Laboratory of the China Meteorological Administration Aerosol and Cloud Precipitation, Nanjing University of Information Science and Technology, Nanjing 210044, China;
2 School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China;
3 School of Atmospheric Science, Nanjing University of Information Science and Technology, Nanjing 210044, China)

Published:2017-11-28 Online:2017-11-13
Supported by:
Supported by Six Talent Peaks Project in Jiangsu Province 455(江苏省“六大人才高峰”高层次人才项目, 2015-JY-013), College Student Practice Innovative Training Program of Jiangsu Province(江苏省大学生创新创业训练计划项目, 201510300047), Techno Solutions College Students Scientific Innovative Program of NUIST Atmospheric Physics School(南京信息工程大学大气物理学院天诺基金, 2015TNJY012)

摘要/Abstract

摘要：

采用波长插值和时空匹配的方法，对气溶胶自动观测网（aerosol robotic network, AERONET）和风云三号卫星中分辨率光谱成像仪（FY3A-MERSI）气溶胶光学厚度（aerosol optical depth, AOD）产品进行匹配，并进一步使用AERONET AOD数据对北京以及周围地区的FY-3A/MERSI AOD产品精度进行验证分析。实验结果表明：⑴FY-3A AOD与AERONET AOD具有较高的相关性（R=0.733），总体偏低于AERONET AOD(bias=-0.012)；⑵下垫面植被覆盖度越高，FY-3A AOD反演精度越高；气溶胶浓度较低精度越高，反之反演精度越低；并且在春冬季节的反演精度高于夏秋季节。此结论可为北方地区的FY-3A/MERSI气溶胶产品使用提供参考。

关键词: MERSI, 气溶胶光学厚度, 气溶胶自动观测网, 暗像元算法

Abstract:

Automatic aerosol observation network (AERONET) and FY-3A Moderate Resolution Imaging Spectrometer (FY3A-MERSI) are matched by utilizing the method of band interpolation and temporal-spatial matching. The inversion precision of FY-3A/MERSI AOD products in Beijing, China and its adjacent regions is verified and analyzed by using AERONET AOD data. The results show: (1) FY-3A AOD data presents a high relativity (R=0.733) with AERONET AOD data and generally less than it (bias=-0.012). (2) The higher the underlying surface vegetation coverage is, the higher the FY-3A AOD data retrieving accuracy is, and the accuracy in winter-spring season is higher than that in summer-autumn season. Also, the retrieval precision is greater in low aerosol concentration condition. The above conclusions can provide reference for the application of FY-3A/MERSI aerosol product in northern China.

Key words: medium resolution spectral imager, aerosol optical depth, aerosol robotic network, algorithm of dark target

中图分类号:

P414.4

唐维尧鲍艳松马骁徐徐徐俊杰李冉郭斌朱柳桦王富婷. FY-3A/MERSI气溶胶光学厚度资料在北京及其周围地区的精度评价[J]. 大气与环境光学学报, 2017, 12(6): 435-445.

TANG Wei-Yao, BAO Yan-Song, MA Xiao, XU Xu, XU Jun-Jie, LI Ran, GUO Bin, ZHU Liu-Hua, WANG Fu-Ting. Accuracy Evaluation of FY-3A/MERSI Aerosol Optical Depth Data in Beijing and Its Adjacent Region[J]. Journal of Atmospheric and Environmental Optics, 2017, 12(6): 435-445.

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