P1.5
Performance of the global shallow water model with double Fourier series on the interaction and movement of typhoon-scale vortices
Hyeong Bin Cheong, Pukyong National University, Pusan, Korea; and I. H. Kwon, M. J. Lee, and M. K. Kang
A global shallow water model with the double Fourier series as basis functions (SWM-DFS) is applied to the interaction and movement of typhoon-scale vortices. The numerical model incorporates a fourth-order spectral filter to surpress the small-scale numerical noises. The vortices are given axisymmetric and are initialized to be in the gradient wind balance. It is found that SWM-DFS well simulates the interaction between strong vortices with accuracy, and also the movement of a single vortex superimposed on the observed flow. We discuss the advantages of using global domain model instead of regional model in simulating the vortices interaction and movement on the sphere.
Poster Session 1, Weather Analysis, Forecasting and Numerical Prediction
Monday, 12 August 2002, 3:00 PM-4:30 PM
Previous paper Next paper