| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
We have analyzed Martian magnetic fields observed by Mars Global Surveyor (NASA). Applying the Surface Vector Mapping (SVM) method, we provided the magnetic anomaly maps on the Martian surface with high precision of spatial resolution. The results shows dominance of shorter wavelength components (about 5 degrees in latitude) than in previous studies. Strong magnetic anomalies are often seen at areas of high topography but not at low topography areas. This correlation suggests that main sources of the magnetic anomalies are contained in the Martian crust of <10 km depth. Such shallow magnetic carriers are not explained by the previous model. We also compared magnetic anomalies of Mars with those of Moon, Mercury and Earth on the basis of SVM maps. Similarities and differences of the crustal magnetic anomalies may reflect intrinsic and individual processes of the terrestrial planets and satellite.
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