摘要
月基平台以其整体性、多角度、长周期等特点,可望实现对地球整体辐射收支进行精确估算。为了评估月基平台对地球辐射能量的观测能力,建立了基于地月几何关系的一一映射算法,使用戈达德地球观测系统模型第五版(Goddard Earth Observation System model version 5,GEOS-5)数据作为模型输入,用以模拟月基视场地球向外辐射能量,从而形成对月基观测的地球辐射能量规律性认识。结果表明:月基传感器可以观测包括极区在内约178°跨度的经纬度区域;月球变轨道倾角将为地球高纬度地区提供更好的观测条件,极区观测高度角可达到60°。该模拟方法可以为观测地球向外辐射提供有效支持,为后续研究打下坚实的基础。
Due to the characteristics of integrity,multi-angle and long period,a Moon-based platform is expected to accurately estimate Earth outgoing radiation.To evaluate this platform’s capabilities,this paper established a one-to-one mapping algorithm based on the geometric relationship and used the Goddard Earth Observing System model version 5(GEOS-5)data as model input to simulate Earth’s outgoing radiation viewed from a Moon-based platform,so as to learn about the regularity of Earth outgoing radiation viewed from the Moon-based platform.Results show that a Moon-based platform can cover about 178°both in latitudinal and longitudinal direction in one image,including the polar regions.The changing inclination of the orbit of the Moon gives a better observation condition for high latitude regions,and the viewing zenith angle in polar regions can reach to 60°.These results indicate the simulation method can effectively support the observation of Earth’s outgoing radiation observation and lay the foundation for future research.
作者
黄靖
郭华东
刘广
邓玉
HUANG Jing;GUO Huadong;LIU Guang;DENG Yu(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;College of Resources and Environment,University of Chinese Academy of Space Technology,Beijing 100049,China;School of Earth and Space Sciences,Peking University,Beijing 100871,China)
出处
《深空探测学报（中英文）》
CSCD
北大核心
2022年第3期278-284,共7页
Journal Of Deep Space Exploration
基金
国家自然科学基金(41590852)。
关键词
月基对地观测
地球向外辐射
模拟研究
几何模型
Moon-based Earth observation
Earth outgoing radiation
simulation study
geometric modelling
作者简介
黄靖(1996-),女,博士生,主要研究方向:月基对地观测。通讯地址:中国科学院空天信息创新研究院(100094)电话:(010)82178182,E-mail:huangjing@radi.ac.cn;通讯作者:刘广(1979-),男,教授,博士生导师,主要研究方向:月基对地观测,微波遥感对地观测研究。通讯地址:中国科学院空天信息创新研究院(100094)电话:(010)82178103,E-mail:liuguang@radi.ac.cn。
