34th Conference on Radar Meteorology. A LATENT HEAT RETRIEVAL IN A RAPIDLY INTENSIFYING HURRICANE. Steve Guimond and Paul Reasor Florida State University. Background/Motivation. Main driver of hurricane genesis and intensity change is latent heat release
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34th Conference on Radar Meteorology
A LATENT HEAT RETRIEVAL IN A RAPIDLY INTENSIFYING HURRICANE
Steve Guimond and Paul Reasor
Florida State University
Model Heating Budget Results
Examining Assumptions with Doppler radar
All heating removed
Impact of Tendency on Heating
R2 = 0.714
How to parameterize tendency term?
(2) Coincident (flight level) 2 RPM LF data
Including parameterization
P-3 Doppler Radar Results
Hurricane Guillermo (1997)
Mean =117 K/h
Acknowledgments
References
Thermodynamic Sensitivity
Below melting level:
Z = 402*LWC1.47 n = 7067 RMSE = 0.212 g m-3
Above melting level (Black 1990):
Z = 670*IWC1.79 n = 1609 r= 0.81
Constructing Z-LWC Relationships
Hurricane Katrina (2005) particle data from P-3
Doppler Analysis Quality
Dropsondes
Testing algorithm in model
Testing algorithm in model
Testing algorithm in model