22.2.4.3 Example 3: Advective velocity on the bottom face of U-cells

Advective velocity on the bottom face of U-cells `` $adv\_vbu_{i,k,j}$'' is defined as the vertically integrated divergence of horizontal advective velocities (which are on the faces of U-cells) by Equation (22.23). Inspection of the indices in the numerics indicates that `` $adv\_vbu_{i,k,j}$'' cannot be computed within the first or last row of the memory window because this would require knowledge of quantities outside of the memory window. Therefore, `` $adv\_vbu_{i,k,j}$'' can only be dimensioned as

      dimension adv_vbu(imt,km,2:jmw)