R.S. Gross's research while affiliated with California Institute of Technology and other places

Publication (1)

Chapter
The Earth does not rotate uniformly. Not only does its rate of rotation vary, but it wobbles as it rotates. These variations in the Earth's rotation, which occur on all observable timescales from subdaily to decadal and longer, are caused by a wide variety of processes, from external tidal forces to surficial processes involving the atmosphere, oce...

Citations

... PM changes are mostly composed of two counterclockwise wobbles at periods of 433 days (Chandler wobble) and 365 days (annual wobble). Annual and interannual PM variations are forced by the relative motion of winds and ocean currents and the mass redistribution of air and water (Gross 2007(Gross , 2015. The major part of PM changes are explained by the atmosphere (both winds and surface pressure) (e.g. ...