How Does Earth's Rotation Vary Daily?

  • Context: Undergrad 
  • Thread starter Thread starter abdossamad2003
  • Start date Start date
  • Tags Tags
    Rotation
Click For Summary

Discussion Overview

The discussion revolves around the daily variations in the Earth's rotation period, influenced by factors such as seasonal winds and tides. Participants seek resources for tracking these changes and share their findings regarding relevant websites.

Discussion Character

  • Exploratory, Technical explanation, Meta-discussion

Main Points Raised

  • Some participants note that the Earth's rotation period changes daily by about a nanosecond due to various factors.
  • One participant suggests the International Earth Rotation and Reference Systems Service as a potential source for live data on Earth's rotation.
  • Several participants share links to websites that may provide information on Earth's rotation, including timeanddate.com and the IERS website.
  • One participant expresses a desire to find the angular frequency of the Earth at a specific moment, providing a formula for calculation.
  • Another participant inquires about the search terms used to find information on Earth's rotation, indicating a common interest in understanding how to access this data.

Areas of Agreement / Disagreement

Participants generally agree on the existence of daily variations in Earth's rotation and the influence of external factors. However, there is no consensus on the best sources for tracking this information, as different participants suggest various websites.

Contextual Notes

Some claims about the exact amount of change in rotation period and the availability of data may depend on specific definitions and assumptions not fully explored in the discussion.

Who May Find This Useful

Individuals interested in geophysics, astronomy, or those seeking to understand Earth's rotational dynamics may find this discussion useful.

abdossamad2003
Messages
68
Reaction score
4
The period of rotation of the Earth around itself is changed by seasonal winds, tides, and other factors. The exact amount changes daily(about nano second). Is there a website that shows this amount?
 
Astronomy news on Phys.org
abdossamad2003 said:
The period of rotation of the Earth around itself is changed by seasonal winds, tides, and other factors. The exact amount changes daily(about nano second). Is there a website that shows this amount?
I imagine there are lots of websites that contain this information. For example:

https://www.timeanddate.com/time/earth-rotation.html

If you try an Internet search you should find plenty of others.
 
  • Like
Likes   Reactions: WernerQH
PeroK said:
I imagine there are lots of websites that contain this information. For example:

https://www.timeanddate.com/time/earth-rotation.html

If you try an Internet search you should find plenty of others.
Thanks
What did you search on Google that led to this result?
 
Last edited by a moderator:
I want angular frequency of Earth at this moment but I can't find it on Google
ω=2(pi)/86400=72.7221*10^-6 (difference every moment)
 
abdossamad2003 said:
Thanks
What did you search on Google that led to this result?
I can't remember now. It was something obvious like "length of a day".
 

Similar threads

Measuring changes in Earth's rotation
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad About the relation between number of sidereal and solar days
  • · Replies 27 ·
Replies
27
Views
4K
Undergrad What Factors Create the Windiest Exoplanets?
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad Earth's Rotation & Orbit: Effects on Space Objects?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Tidal effects on Earth's rotation and moon's orbit
  • · Replies 10 ·
Replies
10
Views
5K
Graduate How Did Earth's Rotation Change After the Moon's Formation?
  • · Replies 19 ·
Replies
19
Views
3K
Graduate Effect of Rotation on the Earth and Planetary Disk(s)
  • · Replies 8 ·
Replies
8
Views
2K
High School Neutron star 4U 1820-30 spins at 716 revolutions per second
  • · Replies 0 ·
Replies
0
Views
3K
Undergrad Variations in Sun-Earth distance with a 2000-year cycle?
  • · Replies 7 ·
Replies
7
Views
6K
Undergrad How Does the Size of Neutron Stars Compare to Black Holes?
  • · Replies 48 ·
2
Replies
48
Views
6K