Hypothetical Question about Earth's Water-Axis Relationship


Hello everyone. I am new here, so please, if I have not posted this in the proper forum/section let me know and I will repost where it belongs. My hypothetical question likely falls more in the astronomy spectrum, but I am sure some of you geo-engineers would love to have a crack at it. Lets imagine all the earth's water (oceans, lakes, atmospheric water etc...) has been dried up resulting in the desertification of the planet. One would hazard to guess that the removal of the weight of all the planet's water would drastically impact the axis tilt of the earth, the orbital speed and rotation of the earth (day length, year length etc...) and cause a possible roll effect where the planet would settle with a new equator and poles. If my theory is correct, I would love to start a discussion as to how much the tilt of the earth would change after removing the weight of water as well as possible/probable new locations of the equator, north and south poles, day length etc... However, if the removal of water would not at all effect the planet in these ways, please, let me know. Thank you in advance for your help on this and I look forward to hashing out some ideas here on the G.E. forums... cheers jeff

Other Soil Mechanics / Geotechnical

Asked 25/11/2012 21:12, updated: 14/03/2017 14:07
Jeffcam

1 Answer

Votes: 1

Ralph Wilhelm

Logically, the weight of water as a % of the weight of the planet affects the rotational momentum by a similar %, taking into account it's distribution.  For the thin layer involved, the distribution could almost be considered uniform, which would imply a minimal effect.