Polar motion

Следствия:

True polar wander - Колебания Чендлера - Категория:Прецессия

Major earthquakes cause abrupt polar motion by altering the volume distribution of the Earth's solid mass... Euler equation of a gyroscope describing the apparent motion of the rotation axis about the geometric axis of the Earth. This is the so-called polar motion. Observations show that the figure axis exhibits an annual wobble forced by surface mass displacement via atmospheric and/or ocean dynamics, while the free nutation is much larger than the Euler period and of the order of 435 to 445 sidereal days. This observed free nutation is called Chandler wobble.