Thursday, 30 October 2008: 9:45 AM
North & Center Ballroom (Hilton DeSoto)
The interaction between a tornado and its immediate environment is a critical component in determining corner flow dynamics. Investigation of this interaction has been limited to sparse in situ measurements and idealized simulations. Therefore, in order to better characterize this dependency, a tornado-scale model has been developed that allows for the specification of winds at the lateral and top boundaries. Importantly, winds retrieved from high-resolution, Doppler on Wheels data of the 12 May 2004 Harper, KS tornadoes were used as model boundary conditions. Simulations were conducted on a 1 km×1 km×2 km grid, with a grid spacing of 5 m. The effects of this varied inflow on the corner region dynamics and on the maximum wind speed of the tornado-like vortices will be presented.
- Indicates paper has been withdrawn from meeting
- Indicates an Award Winner