Appendix 4
United Kingdom
1980 INTERNATIONAL GRAVITY FORMULA
The acceleration of Earth's gravity, a g, varies depending on the location and a g shall be calculated for a respective latitude, by means of equation (7-166):
| ag = 9,7803267715 [1 + 5,2790414 × 10– 3 sin2 θ + 2,32718 × 10– 5 sin4 θ + 1,262 × 10– 7 sin6 θ + 7 × 10– 10 sin8 θ] | (7-166) |
Where:
θ
Degrees north or south latitude