The Temporal Variation of Optical Depth in the Candidate Landing Area of China’s Mars Mission (Tianwen-1)
The atmospheric dust is an important factor in the evolution of the Martian climate and has a major impact on the scientific exploration of the Martian lander or rover and its payload. This paper used remote sensing images to calculate atmospheric optical depth that characterizes the spatial distrib...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/13/5/1029 |
| _version_ | 1797542150445989888 |
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| author | Zhencheng Tang Jianjun Liu Xing Wang Xin Ren Wei Yan Wangli Chen |
| author_facet | Zhencheng Tang Jianjun Liu Xing Wang Xin Ren Wei Yan Wangli Chen |
| author_sort | Zhencheng Tang |
| collection | DOAJ |
| description | The atmospheric dust is an important factor in the evolution of the Martian climate and has a major impact on the scientific exploration of the Martian lander or rover and its payload. This paper used remote sensing images to calculate atmospheric optical depth that characterizes the spatial distribution of the atmospheric dust of Mars. The optical depth calculated by the images of the High Resolution Imaging Science Experiment (HiRISE) in the inspection area of the Spirit rover had a similar temporal variation to the optical depth directly measured by the Spirit rover from the sunlight decay. We also used the HiRISE images to acquire the seasonal variation of optical depths in the candidate landing area of China’s Mars Mission (Tianwen-1). The results have shown that the seasonal pattern of the optical depth in the candidate landing area is consistent with the dust storm sequences in this area. After Tianwen-1 enters the orbit around Mars, the images collected by the Moderate Resolution Imaging Camera (MoRIC), and the High Resolution Imaging Camera (HiRIC) can be used to study the atmospheric optical depth in the candidate landing area, providing reference for the safe landing and operation of the lander and rover. |
| first_indexed | 2024-03-10T13:26:34Z |
| format | Article |
| id | doaj.art-dbc9b53837824f468b155cd6d9cdd195 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T13:26:34Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-dbc9b53837824f468b155cd6d9cdd1952023-11-21T09:39:50ZengMDPI AGRemote Sensing2072-42922021-03-01135102910.3390/rs13051029The Temporal Variation of Optical Depth in the Candidate Landing Area of China’s Mars Mission (Tianwen-1)Zhencheng Tang0Jianjun Liu1Xing Wang2Xin Ren3Wei Yan4Wangli Chen5Key Laboratory of Lunar and Deep Space Exploration, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Lunar and Deep Space Exploration, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Lunar and Deep Space Exploration, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Lunar and Deep Space Exploration, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Lunar and Deep Space Exploration, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, ChinaKey Laboratory of Lunar and Deep Space Exploration, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, ChinaThe atmospheric dust is an important factor in the evolution of the Martian climate and has a major impact on the scientific exploration of the Martian lander or rover and its payload. This paper used remote sensing images to calculate atmospheric optical depth that characterizes the spatial distribution of the atmospheric dust of Mars. The optical depth calculated by the images of the High Resolution Imaging Science Experiment (HiRISE) in the inspection area of the Spirit rover had a similar temporal variation to the optical depth directly measured by the Spirit rover from the sunlight decay. We also used the HiRISE images to acquire the seasonal variation of optical depths in the candidate landing area of China’s Mars Mission (Tianwen-1). The results have shown that the seasonal pattern of the optical depth in the candidate landing area is consistent with the dust storm sequences in this area. After Tianwen-1 enters the orbit around Mars, the images collected by the Moderate Resolution Imaging Camera (MoRIC), and the High Resolution Imaging Camera (HiRIC) can be used to study the atmospheric optical depth in the candidate landing area, providing reference for the safe landing and operation of the lander and rover.https://www.mdpi.com/2072-4292/13/5/1029remote sensing imagestemporal variation of optical depthTianwen-1candidate landing area |
| spellingShingle | Zhencheng Tang Jianjun Liu Xing Wang Xin Ren Wei Yan Wangli Chen The Temporal Variation of Optical Depth in the Candidate Landing Area of China’s Mars Mission (Tianwen-1) Remote Sensing remote sensing images temporal variation of optical depth Tianwen-1 candidate landing area |
| title | The Temporal Variation of Optical Depth in the Candidate Landing Area of China’s Mars Mission (Tianwen-1) |
| title_full | The Temporal Variation of Optical Depth in the Candidate Landing Area of China’s Mars Mission (Tianwen-1) |
| title_fullStr | The Temporal Variation of Optical Depth in the Candidate Landing Area of China’s Mars Mission (Tianwen-1) |
| title_full_unstemmed | The Temporal Variation of Optical Depth in the Candidate Landing Area of China’s Mars Mission (Tianwen-1) |
| title_short | The Temporal Variation of Optical Depth in the Candidate Landing Area of China’s Mars Mission (Tianwen-1) |
| title_sort | temporal variation of optical depth in the candidate landing area of china s mars mission tianwen 1 |
| topic | remote sensing images temporal variation of optical depth Tianwen-1 candidate landing area |
| url | https://www.mdpi.com/2072-4292/13/5/1029 |
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