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In (or over) the rainbow



 
 
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  #1  
Old March 22nd 08, 09:34 PM posted to rec.aviation.ifr
[email protected]
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Posts: 838
Default In (or over) the rainbow

On my last GA flight where I acted as safety pilot on an IFR flight
plan, I got a video
of our shadow on the clouds. So, I will letchya all decide in 43
seconds or less if I was over or in the rainbow

For those interested, the technical name you are looking at is called
a Glory.

http://www.youtube.com/watch?v=ysaiX8bWVfw

I found it fascinating how the size of the glory changes dramatically
based on distance from the cloud tops.

Allen
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  #2  
Old March 22nd 08, 10:09 PM posted to rec.aviation.ifr
Paul Tomblin
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Default In (or over) the rainbow

In a previous article, " said:
I found it fascinating how the size of the glory changes dramatically
based on distance from the cloud tops.


There's nothing particularly odd about that. Rainbows and glories will
always be exactly the same angle away from your own shadow.


--
Paul Tomblin http://blog.xcski.com/
You can drag any rat out of the sewer and teach it to get some work done in
Perl, but you cannot teach it serious programming.
-- Erik Naggum
  #3  
Old March 22nd 08, 11:10 PM posted to rec.aviation.ifr
Bill
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Posts: 45
Default In (or over) the rainbow

On Mar 22, 3:34*pm, " wrote:
On my last GA flight where I acted as safety pilot on an IFR flight
plan, I got a video
of our shadow on the clouds. So, I will letchya all decide in 43
seconds or less if I was over or in the rainbow

For those interested, the technical name you are looking at is called
a Glory.

http://www.youtube.com/watch?v=ysaiX8bWVfw

I found it fascinating how the size of the glory changes dramatically
based on distance from the cloud tops.

Allen


What is useful to know is that the glory will be present or not
depending
on whether you are looking at ice crystals or water crystals. As I
remember,
no glory when looking at ice crystals.

So if it's below freezing and you have a glory, look out.

BH.
  #4  
Old March 23rd 08, 12:17 AM posted to rec.aviation.ifr
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Posts: 838
Default In (or over) the rainbow

On Mar 22, 6:10*pm, Bill wrote:

So if it's below freezing and you have a glory, look out.

BH.


NEVER knew this!!!! Good tool to have in my IFR toolkit!

Thanks!!!

Allen

  #5  
Old March 23rd 08, 12:21 AM posted to rec.aviation.ifr
[email protected]
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Posts: 838
Default In (or over) the rainbow

There's nothing particularly odd about that. Rainbows and glories will
always be exactly the same angle away from your own shadow.


Fully understand and never intended to imply it was odd, but only time
I have seen this is on level clouds, not seen it on varying cloud
tops, thus me finding it fascinating as the varying degrees of the
irregular surfaces made it interesting to see the image zoom in and
out which I have never seen before.

Allen
  #6  
Old May 5th 08, 10:30 PM posted to rec.aviation.ifr
Hilton
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Posts: 118
Default In (or over) the rainbow

....but something you may want to verify before making a descent/no-descent
decision (i.e. having it in your IFR toolkit). I'm just saying...

Hilton


wrote in message
...
On Mar 22, 6:10 pm, Bill wrote:

So if it's below freezing and you have a glory, look out.

BH.


NEVER knew this!!!! Good tool to have in my IFR toolkit!

Thanks!!!

Allen



 




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