dept. of meteorology intex - na meteorological overview henry fuelberg chris kiley danielle morse...
TRANSCRIPT
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Dept. of Meteorology
INTEX - NAMeteorological Overview
Henry Fuelberg
Chris Kiley
Danielle Morse
Michael Porter
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Dept. of Meteorology
Outline
• Describe meteorological conditions during INTEX• Assess representativeness of INTEX period• Examine interesting scenarios
– Extensive lightning– Asian pollution
-- Alaskan fires
-- Transport to Europe (Lagrangian experiment)
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Dept. of Meteorology
Surface Pressure
2004 46-day Mean
Climatology
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Dept. of Meteorology
Animation of Sea Level Pressure
July 1-6 – California flights
July 7-15 – Mid America I flights
July 16-Aug 11 – Pease flights
Pause July 28 – North Atlantic flight
Pause July 31 – Bermuda high flight
August 12-15 – Mid America II flights
and return to Dryden
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Dept. of Meteorology
Surface Pressure - CA
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Dept. of Meteorology
Surface Pressure - STL
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Dept. of Meteorology
Surface Pressure - NH
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Dept. of Meteorology
Surface Pressure - STL
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Dept. of Meteorology
Contrasting Weather Patterns
Strongest High – Aug 7 00Z Deepest Low – Aug 10 12Z
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Dept. of Meteorology
GOES-8 IR Imagery
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Dept. of Meteorology
Lightning CompositeEntire INTEX Period
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Dept. of Meteorology
Frontal Statistics
A frontal passage can produce much convection, whereas a high pressure area can suppress convection.
July Number of Fronts
Passing NE US
Average Time Between Fronts
2000 3 7 days
2001 4 8 days
2002 6 5.2 days
2003 6 3.8 days
2004 5 5.3 days
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Dept. of Meteorology
Days With Closed High Affecting Northeast
During INTEX Period
• 2000 13 days• 2001 14 days• 2002 14 days• 2003 8 days• 2004 10 days
No stagnant highs over northeast !
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Dept. of Meteorology
500 mb Heights
2004 46-day Mean
Climatology
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Dept. of Meteorology
500 mb Heights - CA
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Dept. of Meteorology
500 mb Heights - STL
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Dept. of Meteorology
500 mb Heights - NH
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Dept. of Meteorology
500 mb Heights - STL
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Dept. of Meteorology
20042003
2004 vs 2003 & 2002500 mb
2002
2003
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Dept. of Meteorology
Strong Alaskan Ridge
Jul 1 – Aug 15 2004 Anomaly
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Dept. of Meteorology
300 mb Winds
2004 46-day Mean
Climatology
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Dept. of Meteorology
300 mb Winds - CA
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Dept. of Meteorology
300 mb Winds - STL
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Dept. of Meteorology
300 mb Winds - NH
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Dept. of Meteorology
300 mb Winds - STL
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Dept. of Meteorology
Case Studies
• Lightning
• Asian Pollution
• Alaskan Fires
• Flow to Europe (Lagrangian Experiments)
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Dept. of Meteorology
Lightning CompositeEntire INTEX Period
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Dept. of Meteorology
July 12 Flight
Lightning from 0708-0712
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Dept. of Meteorology
Asian Pollution – August 2Note flight legs
10 323440
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Dept. of Meteorology
300 mb Winds July 24 – Aug. 2
2004
Climatology
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Dept. of Meteorology
Back Trajectories from Aug. 2
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Dept. of Meteorology
Alaskan FiresJul 12
Jul 14 Jul 16 Jul 18—See next
Jul 8 Jul 10
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Dept. of Meteorology
Alaskan Fires
11
20
27
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Dept. of Meteorology
Lagrangian to Europe--300 mb Winds
2004 46-day Mean
Climatology
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Dept. of Meteorology
Lagrangian to Europe 300 mb Winds
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Dept. of Meteorology
Lagrangian Case Forward Trajectories
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Dept. of Meteorology
850 mb Winds
2004 46-day Mean
Climatology
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Dept. of Meteorology
Conclusions
• INTEX-A mostly representative of climatology• But, a persistent trof along the East Coast• Frontal passages on the “high” end of normal• No stagnant high pressure centers over NE• Hot and dry over Alaska record fires• TransPacific flow sometimes conducive to
long range transport to central/eastern U.S.• TransAtlantic sometimes conducive to
European transport, but farther south than usual
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Dept. of Meteorology
Our Goal is to Assist You
Our web site contains met. data about each flight, e.g., trajectories, flow patterns, etc.
We are happy to help you apply meteorology to your own research
If we do not have the product you need, we will
make it for you
Just let us know !!