## Summary

Salmon describes in this paper a new method to model the ocean based partly on Lattice-Boltzmann model and operator splitting. The resulting code is highly parallel and composed of many *short* routines that make the computation efficient. Although the code does preserve the main conservation laws,

“our model equations do not conserve potential vorticity”.

The code can handle large-scale processes as well as sound waves which makes it particularly useful to study *nonhydrostatic* processes.

## References

Salmon R. (2009): An Ocean Circulation Model Based on Operator-Splitting, Hamiltonian Brackets, and the Inclusion of Sound Waves, *J. Phys. Ocean.*, **39**, 1615–1633.