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Table 1
Contribution to secular angular acceleration (″ cy−2) and LOD rate(ms cy−1) by Earth modeling and tides.
| Earth modeling | Solid tides | Ocean tides | ||
|---|---|---|---|---|
| (IERS2010) | (WB2016) | Total | ||
| Coupled core–mantle | (″ cy−2) | −59.3 | −1269.3 | −1328.6 |
| secular evolution | (ms cy−1) | 0.108 | 2.310 | 2.418 |
| Decoupled core–mantle | (″ cy−2) | −67.0 | −1432.3 | −1499.2 |
| secular evolution | (ms cy−1) | 0.122 | 2.607 | 2.729 |
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