| Budget Amount *help |
¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2018: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2017: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2015: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
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| Outline of Final Research Achievements |
By examining how the orientation of large-scale structures in ancient Japan was determined, I found it was not the measurement of magnetic north or the true north using circumpolar stars and polaris, but the measurement of the true east-west direction using the sun. Comparing Fujiwara and Nara capital, the linearity of both roads is fairly good, and there is almost no difference. On the other hand, the accuracy of right-angled drawing at Fujiwara capital is low, which suggests that there was a leap in surveying technology between the two capitals. The large scale and the small scale specified by Taiho Codes correspond to Koguryo scale and the large scale of Tang in order. Koguryo scale probably derived from the back side of the scale of Southern Dynasty in China.
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