GFDL Question...runs conflict

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GFDL Question...runs conflict

#1 Postby Anonymous » Mon Aug 09, 2004 9:44 am

If you look at the GFDL 91L forecast 84 hours out, you get a Hurricane approaching Panama City, Fla but no hurricane in the Carribbean http://bricker.met.psu.edu/trop-cgi/gfd ... hour=084hr . If you look at the GFDL for 84 hours out on 93L, you find a cane South of Cuba but nothing near Panama City http://bricker.met.psu.edu/trop-cgi/gfd ... hour=084hr . Why is this??
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Derek Ortt

#2 Postby Derek Ortt » Mon Aug 09, 2004 9:53 am

it has to do with domain resolution. the resolution of the inner domain is 5-15km while the outer one is about 100km
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MWatkins
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#3 Postby MWatkins » Mon Aug 09, 2004 9:54 am

91L was the 6Z version of the model...the link you posted for 93L was the 00Z from last night.

So they are two different runs with 2 different verify times for 84 hours. That's probably the difference...

MW
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Anonymous

#4 Postby Anonymous » Mon Aug 09, 2004 9:56 am

So are these runs even close to accurate? 91L model would definitely affect the overall atmosphere thus affect 93L's path/strength and vice versa-correct? I mean you cut out the other storm then you are not getting a true picture of the atmosphere if both come true.
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Anonymous

#5 Postby Anonymous » Mon Aug 09, 2004 9:57 am

MWatkins wrote:91L was the 6Z version of the model...the link you posted for 93L was the 00Z from last night.

So they are two different runs with 2 different verify times for 84 hours. That's probably the difference...

MW


Oops, I didnt notice that, thanx
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Derek Ortt

#6 Postby Derek Ortt » Mon Aug 09, 2004 9:59 am

all models like this have a higher resolution inner domain. The outer environment has a coarser resolution; thus, it can mis small scale features such as a TC
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#7 Postby MWatkins » Mon Aug 09, 2004 10:03 am

Jekyhe32210 wrote:
MWatkins wrote:91L was the 6Z version of the model...the link you posted for 93L was the 00Z from last night.

So they are two different runs with 2 different verify times for 84 hours. That's probably the difference...

MW


Oops, I didnt notice that, thanx


No prob...last year I posted a link to the ETA model and called it the GFS...it happens...

MW
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rbaker

#8 Postby rbaker » Mon Aug 09, 2004 10:16 am

I thought it was showing two different runs on two different systems. 91L is the one in the gom.and 93L is the one that is coming into the e caribbean, which by the way looking at surfarce reports and ramasis sat picture clearly shows a spin, and excellent banding, this could already be Bonnie.
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