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Rainshadow

A question about wave 1 and wave 2

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Maybe when I retire, I'll be able to sit back and read up on this. 

 

Just curious if there is a level where either one's amplitude is considered strong enough to be the atmospheric pattern driver?  I just drew that red line in, not saying that;s the level. Or is it like everything else, the stronger it is, the more likely it will become the driver.

 

Second question, wave 1 amp geop and temp amp not as much in phase in late Jan (black arrow).  Does one has precedence over the other, or the lack of "phasing" does that mean less influence?

 

Thanks!

 

post-27-0-65919000-1422975452.jpg

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Maybe when I retire, I'll be able to sit back and read up on this. 

 

Just curious if there is a level where either one's amplitude is considered strong enough to be the atmospheric pattern driver?  I just drew that red line in, not saying that;s the level. Or is it like everything else, the stronger it is, the more likely it will become the driver.

 

Second question, wave 1 amp geop and temp amp not as much in phase in late Jan (black arrow).  Does one has precedence over the other, or the lack of "phasing" does that mean less influence?

 

Thanks!

 

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'

Hey Tony

 

1. There is not a threshold that I'm aware of. The higher the amplitude, the more likely it will have an effect.

2. You need both to cause a significant disturbance. It's ultimately temperature advection into the PV that causes disturbances, so you need both temperature anomalies as a source of warm air and height anomalies to advect the warm air into the PV.

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Hey Tony

 

1. There is not a threshold that I'm aware of. The higher the amplitude, the more likely it will have an effect.

2. You need both to cause a significant disturbance. It's ultimately temperature advection into the PV that causes disturbances, so you need both temperature anomalies as a source of warm air and height anomalies to advect the warm air into the PV.

 

Adam,

 

Thank-you!  :)

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