The Development of BBL in the General Vertical Coordinate System


Y. Tony Song

JPL, California Institute of Technology, Pasadena, California





A bottom boundary layer (BBL) scheme is incorporated into a general vertical coordinate sytem. A suite of process-oriented test problems will be used to evaluate the accuracy and efficiency of the new scheme.

The objective of the study is to develop a general vertical coordinate capability with hybrid Z-, Isopycnal, and Sigma-coordiante features to better represent the subgridscale mixing and BBL processes. The developed techniques will be first applied to the ONR-initiated Expert System/TOMS for future ocean nowcast/forecast applications.