remote sensing Article Analysis of Long-Term Moon-Based Observation Characteristics for Arctic and Antarctic Yue Sui 1,2,3, Huadong Guo 1,2, Guang Liu 1,2,* and Yuanzhen Ren 4 1 Aerospace information research institute, Chinese Academy of Sciences, Beijing 100094, China;
[email protected] (Y.S.);
[email protected] (H.G.) 2 Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China 3 University of Chinese Academy of Sciences, Beijing 100049, China 4 Beijing Institute of Radio Measurement, The Second Academy of China Aerospace Science and Industry Corporation (CASIC), Beijing 100854, China;
[email protected] * Correspondence:
[email protected]; Tel.: +86-10-8217-8103 Received: 20 September 2019; Accepted: 26 November 2019; Published: 27 November 2019 Abstract: The Antarctic and Arctic have always been critical areas of earth science research and are sensitive to global climate change. Global climate change exhibits diversity characteristics on both temporal and spatial scales. Since the Moon-based earth observation platform could provide large-scale, multi-angle, and long-term measurements complementary to the satellite-based Earth observation data, it is necessary to study the observation characteristics of this new platform. With deepening understanding of Moon-based observations, we have seen its good observation ability in the middle and low latitudes of the Earth’s surface, but for polar regions, we need to further study the observation characteristics of this platform. Based on the above objectives, we used the Moon-based Earth observation geometric model to quantify the geometric relationship between the Sun, Moon, and Earth.