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黄靖, 郭华东, 刘广, 邓玉. 基于月基观测几何的地球辐射能量模拟研究[J]. 深空探测学报(中英文), 2022, 9(3): 278-284. DOI: 10.15982/j.issn.2096-9287.2022.20210078
引用本文: 黄靖, 郭华东, 刘广, 邓玉. 基于月基观测几何的地球辐射能量模拟研究[J]. 深空探测学报(中英文), 2022, 9(3): 278-284. DOI: 10.15982/j.issn.2096-9287.2022.20210078
HUANG Jing, GUO Huadong, LIU Guang, DENG Yu. Geometric Simulation of Earth’s Outgoing Radiation Viewed from a Moon-Based Platform[J]. Journal of Deep Space Exploration, 2022, 9(3): 278-284. DOI: 10.15982/j.issn.2096-9287.2022.20210078
Citation: HUANG Jing, GUO Huadong, LIU Guang, DENG Yu. Geometric Simulation of Earth’s Outgoing Radiation Viewed from a Moon-Based Platform[J]. Journal of Deep Space Exploration, 2022, 9(3): 278-284. DOI: 10.15982/j.issn.2096-9287.2022.20210078

基于月基观测几何的地球辐射能量模拟研究

Geometric Simulation of Earth’s Outgoing Radiation Viewed from a Moon-Based Platform

  • 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。

     

    Abstract: 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.

     

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