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Gravity Waves stole my heart!


NASA satellite image of a gravity wave cloud pattern formed in the wake of the Île Amsterdam, a volcanic island in the southern Indian Ocean.





They are waves, not in the sea but in the sky:


In fluid dynamics, gravity waves are waves generated in a fluid medium or at the interface between two media (e.g. the atmosphere and the ocean) which has the restoring force of gravity or buoyancy.
http://en.wikipedia.org/wiki/Gravity_wave

a. Lapse of gravity wave action from the Tama, Iowa KCCI-TV webcam on 6 May 2007.





http://www.youtube.com/watch?v=yXnkzeCU3bE



b. Vicenza 24 september 2007 wave clouds over vicenza, 1 hour time lapse footage.





:heart: Be sure to leave some juicy comments, so I can feel loved :heart:


:heart:

Not all things can be sharedBirthday Wishes for Ed

Comments

Linda 24. August 2009, 23:07

Gravity waves have stolen my figure.

Angeliki 24. August 2009, 23:15

:lol:

Gosh I forgot all about those!

Jurjen 24. August 2009, 23:25

Sounds interesting! I will follow that link to the wiki some other time. I'm to tired now to be reading difficult things :lol:

But very cool! :cool:

scott cumming 25. August 2009, 00:39

meli :heart: i like the second one best; with the suns last rays. so those are gravity waves. hmmmm, never heard of it. :happy: but i have seen the phenomenon many times. i just didn't know what i was looking at.

sometimes the clouds look like a herd of buffalo. i love what they call a 'mackerel' sky.

dbshadow(Deacon Blue) 25. August 2009, 00:44

No wonder the planes shake sdo badly sometimes.:no: :alien: :alien: :heart:

Léazz 25. August 2009, 00:55

It looks very artistic huh, like a painting.

Olatunji joseph 25. August 2009, 01:05

Am jo. infact am carried away with d pics pls b my friend and i be ur guy stay cool

PainterWoman 25. August 2009, 01:06

Have never heard of gravity clouds either but clouds are a fascinating thing to watch. Often, I watch the thunderheads forming around our mountains.

Olatunji joseph 25. August 2009, 01:07

Am jo. infact am carried away with d pics pls b my friend and i be ur guy stay cool

starree 25. August 2009, 01:56

beautiful!

Carol 25. August 2009, 01:57

Cool, I love clouds.
The videos are not loading on your page so I double clicked them and went to YouTube but they are not loading very good on there either.
Did you see this one Angeliki?

http://www.youtube.com/watch?v=2Wu9-O8UaR0&feature=fvw

Angeliki 25. August 2009, 02:43

Originally posted by jekav:

But very cool! :cool:




yes it is! I hope you follow the link,
it is worth learning p:

Angeliki 25. August 2009, 02:45

Originally posted by I_ArtMan:

i like the second one best; with the suns last rays




I loved it too meli :heart:

I am so glad you did enjoy it :smile:

scott cumming 25. August 2009, 02:45

@dacotah,
amazing picture... love to see that from the ground at sunset. :happy:

Angeliki 25. August 2009, 02:48

Originally posted by dbshadow:

No wonder the planes shake sdo badly sometimes.




oh the stories I have to share on this one!
the more travels the more stories:
http://my.opera.com/ellinidata/blog/countries-u-s-states-i-receivedi-visited

Angeliki 25. August 2009, 02:49

Originally posted by BabyJay99:

It looks very artistic huh, like a painting.



yes it is! nature is the biggest artist ever! :smile:

Angeliki 25. August 2009, 02:50

Originally posted by Jounited:

Am jo.



thanks for your comment :smile:

Angeliki 25. August 2009, 02:51

Originally posted by PainterWoman:

Have never heard of gravity clouds either but clouds are a fascinating thing to watch.




many shapes up in the sky and imagination can play many tricks... feel free to follow the link to wiki, it is very cool info :smile:

Angeliki 25. August 2009, 02:52

:heart: Tamil this is an amazing picture! so cool I will add it here too!thanks!

Angeliki 25. August 2009, 02:53

Thanks Anne!


I will never see the sky the same way again! :smile:

Angeliki 25. August 2009, 02:54

@ Carol,
"the morning glory" is so cool!
3 Minutes on The Wave it a Video that I will most probably post one day again! (when all forget this one ! p:) thanks! I loved it!

Darko 25. August 2009, 04:21

Like looking at the ocean from an airplane. And that photo you posted in comments is amazing :up: Where was it?

Allan 25. August 2009, 04:41

Well, I think I've learned something today!

Katya 25. August 2009, 05:06

So strange...as if we live under the sea... as SpongeBob Squarepants does :D

Linda 25. August 2009, 06:17

Originally posted by ellinidata:

Tamil this is an amazing picture!



That looks amazing. Wonder what caused it?

Léazz 25. August 2009, 13:39

:wink:

Carol 25. August 2009, 18:43

Angeliki, I'm glad you liked it.

Scott, it's me Carol. You like the video or Tamils photo?

Angeliki 25. August 2009, 19:01

Originally posted by gdare:

And that photo you posted in comments is amazing :up: Where was it?




that was give to me by Tamil,
follow his link it is fascinating :smile:

Angeliki 25. August 2009, 19:02

Originally posted by ricewood:

I think I've learned something today!




:happy:

Angeliki 25. August 2009, 19:03

Originally posted by izumochka:

as if we live under the sea.




nice to see you here Katya,
I know the artist in you would have appreciated!

sponge bob can be the best! p:

Angeliki 25. August 2009, 19:05

Originally posted by L2D2:

That looks amazing. Wonder what caused it?




Linda this is what Nasa said:

Explanation: What causes these long, strange clouds? No one is sure. A rare type of cloud known as a Morning Glory cloud can stretch 1,000 kilometers long and occur at altitudes up to two kilometers high. Although similar roll clouds have been seen at specific places across the world, the ones over Burketown, Queensland Australia occur predictably every spring. Long, horizontal, circulating tubes of air might form when flowing, moist, cooling air encounters an inversion layer, an atmospheric layer where air temperature atypically increases with height. These tubes and surrounding air could cause dangerous turbulence for airplanes when clear. Morning Glory clouds can reportedly achieve an airspeed of 60 kilometers per hour over a surface with little discernible wind. Pictured above, photographer Mick Petroff photographed some Morning Glory clouds from his airplane near the Gulf of Carpentaria, Australia.

Angeliki 25. August 2009, 19:06

@BabyJay99

:smile:

Angeliki 25. August 2009, 19:06

Originally posted by Dacotah:

Angeliki, I'm glad you liked it.





and I am sharing it on an email with some geek friends :smile:

Carol 25. August 2009, 19:58

:smile:

Angeliki 25. August 2009, 20:00

Carol,
I nn to check my subscriptions today...if you posted and I did not show up ,I apologize in advance! again I have a feeling I am not getting alerts from many friends :frown:

Carol 25. August 2009, 20:18

Angeliki, I haven't posted anything in awhile.
Thinking of doing one in a bit.
:smile:

Edward Piercy 25. August 2009, 23:21

How about the waves generated between my brain and a Bloody Mary? p:







(Fascinating stuff. Never knew any of it, but it makes sense.)

Linda 25. August 2009, 23:35

Thanks for the explanation, Angeliki, or the lack thereof, since the meteorologists do not seem to know for sure.

Edward Piercy 25. August 2009, 23:39

I once read that with all the vectors involved in weather that the only way to study it is via Chaos Theory.

Which also makes it impossible to predict weather more than 48 hours in advance. So all those 7-day forcasts you hear them give on the local news? -- pure bullshit.

Linda 25. August 2009, 23:50

We can surely tell that's the truth by looking out the door!

Carol 25. August 2009, 23:59

Ed, a bloody brain is a good shot to have. :D

Edward Piercy 26. August 2009, 00:49

@ Linda

That's how I do it. Well, I use a window actually. :lol:


@ Carol

That Stoli is heavy wave-makin stuff, I'll tell ya! p:

Charles Schloss 26. August 2009, 01:12

Was I gravitating to this blog post

Angeliki 26. August 2009, 01:12

Originally posted by Dacotah:

Thinking of doing one in a bit.




lovely pictures! :yes:

Angeliki 26. August 2009, 01:15

Originally posted by edwardpiercy:

between my brain and a Bloody Mary




:lol: i am just glad it is not btwn your stomach and yor rear p: hot and spicy can be tricky! p:

Angeliki 26. August 2009, 01:16

Originally posted by edwardpiercy:

Which also makes it impossible to predict weather more than 48 hours in advance. So all those 7-day forcasts you hear them give on the local news? -- pure bullshit.




absolutely accurate!

Angeliki 26. August 2009, 01:18

Originally posted by Chas4:

Was I gravitating to this blog post




:lol: kinda! p:

Charles Schloss 26. August 2009, 01:32

There is this tugging feeling

Angeliki 26. August 2009, 01:35

Originally posted by Chas4:

tugging feeling




:lol: I feel the same about your post!

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