BINARY TROPICAL CYCLONE INTERACTIONS ON THE SOUTH OF AN IDEALIZED SUBTROPICAL RIDGE

A shallow-water equation model is integrated on a beta-plane centered at 20°N to study the conceptual model concerning binary tropical cyclone interactions numerically,which is proposed by Carr and Elsberry in 1998.Results show that their model has certain validness and that the interactions in the easterly current can creat unusual tracks such as the abrupt changes of direction and/or velocity.