The Naked Scientists

The Naked Scientists Forum

Author Topic: How Much Atmosphere Is Leaking Into Space ?  (Read 2398 times)

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
How Much Atmosphere Is Leaking Into Space ?
« on: 19/07/2008 19:24:41 »
Dear Peeps Of Happy Weekend Being Here Luff & Joy,



See this planet and stuff around it ?



Nice eh ?..being delivered Tuesday !


I've labeled it for the confused !


What I'd like to know is how much atmosphere do we lose to Space in any given time ?

Is it an amount that is on-goingly replaced at a constant rate ?


I'd like to know !!...and for those who don't know...I think ewe'd like to know too !!

Thanking ewe



Neil
Breather Of Air

xxxxxxxxxxxxxxxxxxxxxxxxxxx









 

blakestyger

  • Guest
How Much Atmosphere Is Leaking Into Space ?
« Reply #1 on: 19/07/2008 20:02:14 »
Yes, it really shouldn't be there what with the weather, the government and everything.

However, Earth's gravitational force is enough to overcome the kinetic energy of the atmospheric gases - so they don't escape.

Also, as Earth's core is molten it generates a magnetic field that surrounds the planet and protects it from solar winds which might otherwise strip the atmosphere. I believe that is what happened to Mars once its molten core had cooled.  [xx(]

It's hard to imagine any leakage because there is no way to replace any lost elements/compounds so far as I can see - the only recruitment of material is meteoritic. Some one will put me right here perhaps.
 

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
How Much Atmosphere Is Leaking Into Space ?
« Reply #2 on: 19/07/2008 20:31:45 »
Thank ewe very much Mr blakestyger sir

I am surprised...I would have thought that maybe even a soupcon of atmosphere would be lost....but...your data on gravity and magnetosphere joy is compelling and rational.......something which I am not !! ;)

Thanks again.
 

blakestyger

  • Guest
How Much Atmosphere Is Leaking Into Space ?
« Reply #3 on: 19/07/2008 20:34:10 »
Somewhere, someone will have some figures - I hope so.
 

Offline ukmicky

  • Moderator
  • Neilep Level Member
  • *****
  • Posts: 3011
    • View Profile
    • http://www.space-talk.com/
How Much Atmosphere Is Leaking Into Space ?
« Reply #4 on: 20/07/2008 00:30:53 »
Quote
Somewhere, someone will have some figures - I hope so.
It all depends on the sun and how active it is, The more solar wind there is the more the atmosphere swells up .
« Last Edit: 20/07/2008 14:03:55 by ukmicky »
 

Offline Soul Surfer

  • Neilep Level Member
  • ******
  • Posts: 3345
  • keep banging the rocks together
    • View Profile
    • ian kimber's web workspace
How Much Atmosphere Is Leaking Into Space ?
« Reply #5 on: 20/07/2008 23:17:04 »
Nice picture nailep but the scale is all wrong.  The earths atmosphere is incredibly shallow compared with the diameter of the earth.  Most of it is below 5 miles  ie 1/1600 of the diameter of the earth and spacecraft can orbit below 100 miles or  1/80 of the diameter of the earth  that's around one millimetere on your picture.
 

The Naked Scientists Forum

How Much Atmosphere Is Leaking Into Space ?
« Reply #5 on: 20/07/2008 23:17:04 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums