Extended Abstract (1.4M)P2.153
An observatinal and numerical study of the boundary layer processes during the intensification of Hurricane Bill (2009)
Jun Zhang, NOAA/AOML/HRD, Miami, FL; and A. Aksoy, S. Lorsolo, R. Rogers, E. Uhlhorn, J. J. Cione, J. Dunion, J. Kaplan, K. Yeh, X. Zhang, S. G. Gopalakrishnan, T. Quirino, J. Cangialosi, and F. Marks
The atmospheric boundary layer plays a key role in the distribution of atmospheric moisture and angular momentum that regulate the hurricane intensity change. In order to analyze different mechanisms which control the boundary layer processes related to hurricane intensification, we have simulated Hurricane Bill (2009) by means of the experimental version of Hurricane Weather and Forecasting (HWRF-X) model that is being developed at the Hurricane Research Division (HRD), and compared model simulations to observational data collected by NOAA's P3 aircraft. Ensemble based sensitivity analysis of the modelled boundary layer processes during the intensification period of Hurricane Bill is carried out. Direct and continuous measurements of the boundary layer structure by the GPS dropsondes and Doppler radar are used to evaluate the results obtained by the model.
Poster Session 2, Posters: Tropical Cyclone Modeling, Convection, Tropical Cyclone Structure, Intraseasonal Variability, T-PARC, TCS-08, Air-Sea Interaction, Convectively Coupled Waves, Tropical Cyclone Observations, Climate Change, Probabilistic Forecasting
Thursday, 13 May 2010, 3:30 PM-5:00 PM, Arizona Ballroom 7
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