| 摘要: |
| 在对欧空局火星快车探测器搭载的MARSIS雷达的浅表层探测数据进行校准过程中,获得了火星电离层的总电子含量(total electron content, TEC)观测数据.利用该数据,计算火星低纬度地区电离层的峰值电子密度和标高;并对其进行统计分析发现,在低纬度地区,火星冬季电离层的标高和峰值电子密度均较夏季高,即冬季电离层较夏季更显著,且春季电离层的电子密度梯度最大. |
| 关键词: 火星电离层 MARSIS 统计 |
| DOI：10.15982/j.issn.2095-7777.2014.04.008 |
| 分类号: |
| 基金项目:国家重点基础研究发展计划(973计划)项目(2015CB857101);中国科学院国家天文台2014青年人才基金项目 |
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| Statistical Characteristics of Martian Equatorial Ionosphere based on MARSIS |
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WANG Mingyuan, PING Jinsong
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Key Laboratory of Lunar and Deep Space Exploration, National Astronomical Observatories, CAS, Beijing 100012, China
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| Abstract: |
| In calibrating the Martian ionosphere effects in subsurface detection of MARSIS (Mars advanced radar for subsurface and ionospheric sounding), total electron content (TEC) of the Martian ionosphere is yielded as a by-product. Using these data, the peak electron density and scale height of Martian ionosphere in equatorial region is calculated. The result shows in equatorial region Martian ionosphere is more obvious in winter than in summar and the gradient of eletron density of Martian ionosphere in spring is of the biggest. |
| Key words: Martian ionosphere MARSIS statistics |
