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110年 - 110 國立中央大學_碩士班招生考試_太空科學與工程學系：太空物理學#103812

科目：研究所、轉學考(插大)◆太空物理學 | 年份：110年 | 選擇題數：0 | 申論題數：9

試卷資訊

所屬科目：研究所、轉學考(插大)◆太空物理學

選擇題 (0)

申論題 (9)

1. Explain the generation mechanism of equatorial plasma fountain of the Farth's ionosphere. (10%)
2. Describe the technique of Ionospheric electron density deriving by FORMOSAT-3/COSMICI (10%) and Ionosonde (10%), respectively.
3. Describe the features of the Hall (10%) and Pedersen (10%) conductivity with respect to the altitude throughout the ionosphere. Space Physics: Magnetosphere (50 points)
(a) explain the possible causes of South Atlantic Anomaly (8 points), and

(b) discuss the spatial dependence of drift period for those particles with pitch angle of 60°(10 points).
(a) Where is the strong current? What's the direction of the current? Explain your answer by plotting the trajectories of charged particles. (8 points)
(b) Explain the cquilibrium plasma sheet based on the given magnetic field structure under the MHD condition. (8 points)
(c) Discuss your answer in (a) with the direction of cross tail current. (8 points)

6.The solar wind density measured by a spacecraft changes from 618e07306d748.jpgand the strength of interplanetary magnetic field changes from 25 nT to 8 nT on average. What kinds of such a structure can be? Explain your answer in detail. (8 points)