P2.66 Statistical assessment of tropical cloud-system resolving model simulations using a cell-tracking algorithm

Thursday, 13 May 2010
Arizona Ballroom 7 (JW MArriott Starr Pass Resort)
Simon Caine, University of Melbourne, Melbourne, Australia; and T. P. Lane, P. T. May, J. Pinto, C. Jakob, S. T. Siems, and M. J. Manton

Numerical cloud models are sufficiently advanced that they are capable of providing physically realistic representations of cloud systems in the tropics. Yet, due to the low predictability of moist convection, models have difficulty simulating the correct location and timing of individual convective clouds. Such a limitation makes direct comparisons between observed and simulated convection problematic and it is often more useful to compare statistics of simulated tropical convection to those of observations. In this study, we used an objective cell-tracking algorithm, TITAN (Thunderstorm Identification Tracking Analysis and Nowcasting), to compare the statistics of the characteristics of modeled convective cells and those observed by weather radar. TITAN provides information on a variety of cloud properties, including storm duration, height, size, shape, orientation, location, and propagation speed. Model data from WRF model simulations of convection during the Tropical Warm Pool – International Cloud Experiment (TWP-ICE) are conducted, analyzed with TITAN, and compared to a similar analysis of the available radar observations. This poster presents preliminary results from this analysis.
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