PATTERN-FORMATION IN DRIVEN COUPLED MAP LATTICES

We use a coupled map lattice as a model for convected temperature fluc tuations in the atmosphere above an ocean surface. We introduce a simp le model for spatio-temporal bursting in a two-dimensional coupled map lattice. Diffusion is controlled by the strength of the nearest-neigh bor coupling of the lattice elements. This diffusion is modified to ta ke into account spatially preferential directions. and this spatial pr eference is used to capture possible buoyancy effects. As diffusion an d buoyancy are varied. convective spatio-temporal patterns are observe d in the lattice.