Natstrackalpha
28th Apr 2012, 09:00
Hi,
I have a question which is not a challenge, nor a trick question, it is a cry for knowledge.
Understanding that the Polar Jets in the N.Hemisphere are invaribly at the tropopause.
My question is: are the Jetstreams AT the tropopause or just above or below the tropopause. [I know the CORE is slightly higher and to the Polar side of the jet but in the jet] Also = is it the case that there is absolutlely zero weather above the tropopause as is studied, and assuming nil wx at or above the tropopause then could there still be Jetstreams above the tropopause. I am trying to solidfy my education here.
Also (sorry) - subject to the above - if there is no wx above the tropopause and say, no jetstreams then ---would it be possible to get CAT in/at these areas/levels.
Sorry if this is a p--n in the ---e question.
You could answer with "go and read up on MET and Climatology" - well, I have but these questions have not yet crystalised.
Visualising a large CB, say, over the N. Atlantic, well developed and moving from the mature to the disipating stage, the anvil will start to pan out in the direction of the upper winds (even the jet) and, above that anvil would possibly be mod to severe turb from the CB, from the convective currents (unless these currents have just stopped dead at the tropo), indeed the Jets may in fact be not far away from here as they (the jets) are the main engines of most if not all of our weather - as you all know.
Stretching the question a tiny stage further - say we were to fly a Blackbird at something like FL800 or 900 and we were well above any WX (and saw the curvature of the Earth etc.,) then could we experience any turb or indeed any wind at that level?
Why do I want to know? I was just trying to see what it is like trucking around at FL410 or more.
Thank you for your time.
-and your patience.
I have a question which is not a challenge, nor a trick question, it is a cry for knowledge.
Understanding that the Polar Jets in the N.Hemisphere are invaribly at the tropopause.
My question is: are the Jetstreams AT the tropopause or just above or below the tropopause. [I know the CORE is slightly higher and to the Polar side of the jet but in the jet] Also = is it the case that there is absolutlely zero weather above the tropopause as is studied, and assuming nil wx at or above the tropopause then could there still be Jetstreams above the tropopause. I am trying to solidfy my education here.
Also (sorry) - subject to the above - if there is no wx above the tropopause and say, no jetstreams then ---would it be possible to get CAT in/at these areas/levels.
Sorry if this is a p--n in the ---e question.
You could answer with "go and read up on MET and Climatology" - well, I have but these questions have not yet crystalised.
Visualising a large CB, say, over the N. Atlantic, well developed and moving from the mature to the disipating stage, the anvil will start to pan out in the direction of the upper winds (even the jet) and, above that anvil would possibly be mod to severe turb from the CB, from the convective currents (unless these currents have just stopped dead at the tropo), indeed the Jets may in fact be not far away from here as they (the jets) are the main engines of most if not all of our weather - as you all know.
Stretching the question a tiny stage further - say we were to fly a Blackbird at something like FL800 or 900 and we were well above any WX (and saw the curvature of the Earth etc.,) then could we experience any turb or indeed any wind at that level?
Why do I want to know? I was just trying to see what it is like trucking around at FL410 or more.
Thank you for your time.
-and your patience.