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The Impacts of an Evolving Ocean Boundary Condition on TC Structure and Intensity
Henry Winterbottom, Eric Chassignet
Center for Ocean-Atmosphere Prediction Studies
(Abstract received 05/18/2009 for session X)
ABSTRACT
One of the hypotheses for the inability of the numerical weather prediction models to replicate the intensity changes seen in observations is the lack of a realistic (or active) ocean boundary condition and the associated feedbacks into the atmospheric boundary layer. This study attempts to investigate this hypothesis via the development of a fully coupled ocean-atmosphere modeling system. The atmosphere and ocean models are the Weather Research and Forecast (WRF) Advanced Research WRF (ARW) (Skamarock et al., 2005) and the Hybrid Coordinate Ocean Model (HYCOM) (Bleck, 2002; Chassignet et al., 2003; Halliwell, 2004), respectively. In this presentation, we will present some initial results from a coupled-model experiment for TC Bertha (2008) which illustrate the impacts of an active ocean boundary condition upon the evolution of the TC\'s structure and intensity.
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2009 LOM Workshop, Miami, Florida Jume 1 - 3, 2009