Extended Abstract (1000K)10B.5
Effects of equatorially-trapped tropical waves on tropical cyclogenesis: High resolution simulations in idealized conditions
Jeffrey S. Gall, Penn State University, University Park, PA; and W. M. Frank
Understanding the role of tropical waves in tropical cyclogenesis is fundamental to improving forecasts of tropical cyclogenesis and intensification. Equatorially-trapped, tropical waves cause sufficient oscillations in the magnitude of the pressure, temperature, and wind fields such that they have the ability to influence the large-scale weather of the tropical atmosphere. The Nested Regional Climate Model (NRCM) developed at The National Center for Atmospheric Research (NCAR) was used to study the role of equatorially-trapped tropical waves in tropical cyclogenesis. In particular, the effects these waves have in modulating the low- and mid-level vorticity, vertical shear, and convection will be investigated.
Session 10B, Modulation of Tropical Cyclones by Large-Scale Patterns II
Wednesday, 30 April 2008, 10:15 AM-12:00 PM, Palms E
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