Pattern formation in driven coupled map lattices

We use a coupled map lattice as a model for convected temperature fluctuations in the atmosphere above an ocean surface. We introduce a simple model for spatio-temporal bursting in a two-dimensional coupled map lattice. Diffusion is controlled by the strength of the nearest-neighbor coupling of the lattice elements. This diffusion is modified to take into account spatially preferential directions, and this spatial preference is used to capture possible buoyancy effects. As diffusion and buoyancy are varied, convective spatio-temporal patterns are observed in the lattice.