大气甲烷卫星传感器和遥感算法研究综述  

Satellite Sensors and Retrieval Algorithms of Atmospheric Methane

作　　者：何卓 李正强 樊程 张莹 史正 郑杨 顾浩然 麻金继 左金辉 韩颖慧 张元勋 秦凯[4] 张灏 徐文斌[5] 朱军[6] He Zhuo;Li Zhengqiang;Fan Cheng;Zhang Ying;Shi Zheng;Zheng Yang;Gu Haoran;Ma Jinji;Zuo Jinhui;Han Yinghui;Zhang Yuanxun;Qin Kai;Zhang Hao;Xu Wenbin;Zhu Jun(State Environmental Protection Key Laboratory of Satellite Remote Sensing,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100101,China;University of Chinese Academy of Sciences,Beijing 100049,China;School of Geography and Tourism,Anhui Normal University,Wuhu 241003,Anhui,China;School of Environment and Spatial Informatics,China University of Mining and Technology,Xuzhou 221116,Jiangsu,China;Beijing Institute of Environmental Features,Beijing 100143,China;DFH Satellite Co.,Ltd.,Beijing 100094,China)

机构地区：[1]中国科学院空天信息创新研究院国家环境保护卫星遥感重点实验室,北京100101 [2]中国科学院大学,北京100049 [3]安徽师范大学地理与旅游学院,安徽芜湖241003 [4]中国矿业大学环境与测绘学院,江苏徐州221116 [5]北京环境特性研究所,北京100143 [6]航天东方红卫星有限公司,北京100094

出　　处：《光学学报》2023年第18期47-63,共17页Acta Optica Sinica

基　　金：国家重点研发计划(2020YFE0200700)。

摘　　要：全球气候治理和温室气体减排已经到了刻不容缓的地步。自工业革命以来,大气甲烷(CH_(4))体积分数一直持续上升,目前全球平均值已达约1895.7×10^(-9),加上CH_(4)全球变暖潜能值比二氧化碳(CO_(2))高约27~30倍,因此对大气CH_(4)的监测成为碳减排的重点与热点。利用卫星遥感探测速度快、覆盖范围广、获取信息丰富等优势,可以实现高精度、高时空分辨率且全球覆盖的大气CH_(4)浓度监测。据此,首先对大气CH_(4)探测卫星及传感器的发展进行梳理与介绍,从早期的被动热红外探测,到对近地CH_(4)浓度变化更为敏感的被动短波红外探测,再到以甲烷遥感激光雷达任务(MERLIN)为代表的主动型探测,CH_(4)探测传感器空间分辨率提升至5~10km,探测精度提升至10×10^(-9)以内,并朝着高时空分辨率、高精度和连续观测一体化的目标不断发展;然后,对各类传感器不同算法的原理、适用条件和反演精度等进行归纳总结,其中精度最高、应用最为广泛的全物理算法的反演精度已达到了0.3%;最后,结合大气CH_(4)卫星遥感发展现状与双碳目标的战略需求,对CH_(4)卫星遥感和反演研究的发展趋势进行总结与分析,旨在为我国大气CH_(4)卫星遥感体系建设提供一定的参考。Significance Global climate governance and greenhouse gas emission reduction are of great urgency.The volume fraction of atmospheric methane(CH_(4))has been rising continuously since the industrial revolution and is now averaging about 1895.7× 10^(-9)lobally.In addition,since the global warming potential of CH,is about 27-30 times higher than that of carbon dioxide(CO_(2)),the monitoring of atmospheric CH,becomes the focus and hotspot of carbon emission reduction.Satellite remote sensing features fast detection speed,wide coverage,and rich information.It can conduct continuous and stable observations of atmospheric CH_(4) with high temporal and spatial resolution and high precision on a global scale and can provide verification and support for the"bottom-up"emission inventory.Relying on the rapid development of satellite detection technology and the urgency to reduce greenhouse gas emissions,a large number of satellites with CH_(4) detection capabilities have emerged in the past two decades.The detection technology has become more mature with increasingly higher detection accuracy.Additionally,corresponding algorithms of various satellite sensors have also made a huge leap forward.Rapid advances in both sensors and algorithms enable us to better monitor the temporal and spatial variability of atmospheric CH_(4) and its impact on climate change.With the purpose to promote the further development of CH,satellite remote sensing and retrieval research and realize the dual carbon target,it is necessary to summarize and discuss the existing research progress and future development trends,which can provide scientific and technological support for China's low-carbon sustainable development.ProgressFirstly,the development of atmospheric CH_(4) satellites and sensors is reviewed and introduced.Early sensors mainly rely on the thermal infrared band of about 8μm for CH_(4)detection,and typical representatives include IMG,AIRS,and IASI(Table 1).Subsequently,a series of passive short-wave infrared sensors represented by SCIA

关 键 词：大气遥感 传感器 碳减排 温室气体 甲烷 反演算法 

分 类 号：P412[天文地球—大气科学及气象学]