Return to the Cloudy Nights Telescope Reviews home pageAstronomics discounts for Cloudy Nights members
· Get a Cloudy Nights T-Shirt · Submit a Review / Article

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User

General Astronomy >> Light Pollution

Pages: 1
George N
Carpal Tunnel

Reged: 05/19/06

Loc: Binghamton & Indian Lake NY
Waves in airglow
      #5614724 - 01/09/13 11:52 PM

See: NASA Earth Observatory web page

I had heard claims that there can be changes in airglow, but here it is captured in a satellite image from April 2012. The researchers were surprised that the satellite is sensitive enough to record air glow!

Post Extras: Print Post   Remind Me!   Notify Moderator  

Reged: 06/18/08

Loc: Ottawa, Ontario, Canada
Re: Waves in airglow new [Re: George N]
      #5634380 - 01/21/13 06:24 AM

These bands often enough show up in wide angle night sky images.

On the linked-to web page, it was stated that the large thunderstorm was responsible for the banding, or ripples. I do wonder about this. At 90 kilometers, the airglow layer is very well above the tropopause, at about 11 kilometers. Thunderstorm tops do not intrude very far above the tropopause, and so an additional ~80 kilometers is a lot of (thin!) atmosphere to absorb/dampen any induced gravity waves as stratospheric air is forced upward by the intruding T-storm top.

But I'm certainly amenable to revising my 'analysis'.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1

Extra information
0 registered and 1 anonymous users are browsing this forum.

Moderator:  LivingNDixie, richard7 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Thread views: 824

Jump to

CN Forums Home

Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics