Alltrikes

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• • Jozinko@Sajan

  

  Jozinko 3699 days ago

  I dont like to imagine it...

• • Tussock@Tussock

  

  • 1 like
    • • Jozinko@Sajan

      

      Jozinko liked this 3216 days ago

  Tussock 3216 days ago

  Was lying in bed with a cold, idly perusing the pics on this site when I saw this one - wow!  Those are termed 'breaking shearing-gravity waves' and they're caused by strong changes in wind velocity with height in a stable airmass.  Without knowing the stability it's hard to guess what the velocity change is, but in the order of 10 knots per hundred feet of altitude would be in the ballpark.

  This is a common enough occurrence but it's seldom so extensive or traced so well by clouds.  The subject is frequently mentioned in meteorology and turbulence studies.  This is the best photo I've seen of it, by far.  Wefly, would you mind if I took a copy of this to show my met. students?

  Thanks,

  Bryan