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Open AccessArticle

Analysis of Long-Term Moon-Based Observation Characteristics for Arctic and Antarctic

by 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
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
*
Author to whom correspondence should be addressed.
Remote Sens. 2019, 11(23), 2805; https://doi.org/10.3390/rs11232805
Received: 20 September 2019 / Revised: 23 November 2019 / Accepted: 26 November 2019 / Published: 27 November 2019
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. Assuming the sensor is at the center of the nearside of the Moon, the coverage characteristics of the earth feature points are counted. The observation intervals, access frequency, and the angle information of each point during 100 years were obtained, and the variation rule was analyzed. The research showed that the lunar platform could carry out ideal observations for the polar regions. For the North and South poles, a continuous observation duration of 14.5 days could be obtained, and as the latitude decreased, the duration time was reduced to less than one day at the latitude of 65° in each hemisphere. The dominant observation time of the North Pole is concentrated from mid-March to mid-September, and for the South Pole, it is the rest of the year, and as the latitude decreases, it extends outward from both sides. The annual coverage time and frequency will change with the relationship between the Moon and the Earth. This study also proves that the Moon-based observation has multi-angle observation advantages for the Arctic and the Antarctic areas, which can help better understand large-scale geoscientific phenomena. The above findings indicate that the Moon-based observation can be applied as a new type of remote sensing technology to the observation field of the Earth’s polar regions. View Full-Text
Keywords: Moon-based Earth observation; Antarctic and Arctic regions; geometric simulation; coverage characteristics Moon-based Earth observation; Antarctic and Arctic regions; geometric simulation; coverage characteristics
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Sui, Y.; Guo, H.; Liu, G.; Ren, Y. Analysis of Long-Term Moon-Based Observation Characteristics for Arctic and Antarctic. Remote Sens. 2019, 11, 2805.

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