Structured adaptive mesh refinement using leapfrog time integration on a staggered grid for ocean models

A strategy for staggered grid AMR is presented with velocities defined at cell vertices and tracer and pressure variables defined at cell centres (B-grid). A barotropic modon test case using numerics from a well-documented ocean model is used to demonstrate the ability of staggered grid AMR on a geophysical application. Again refinement regions are time-varying, but specified by the analytic solution.