Table 3 ICH Ellipse Data at different times
Time | CenterX ( °E) | CenterY ( °N) | Ellipticity | Rotation ( °) | Area (km²) |
|---|---|---|---|---|---|
Pre-Qin Period | 112.05 | 24.24 | 0.713 | 80.38 | 375,851 |
Han and Jin Dynasties | 113.68 | 24.30 | 0.727 | 82.38 | 306,782 |
Sui and Tang Dynasties | 114.51 | 24.49 | 0.73 | 77.02 | 364,311 |
Song and Yuan Dynasties | 113.52 | 24.24 | 0.714 | 78.60 | 377,343 |
Ming Dynasty | 113.26 | 24.11 | 0.709 | 78.89 | 358,087 |
Qing Dynasty | 112.32 | 24.05 | 0.716 | 78.39 | 364,933 |
Modern period | 114.01 | 24.07 | 0.773 | 79.49 | 278,317 |
