Hi Martin (and others), I am thinking of moving the S/R find_rho_scalar from model/src/seawater.F to model/src/find_rho.F (each time I look for find_rho_scalar I never remember where it is. Plus, would like to fill-in the ideal-gas EOS part, but then don't see why it should be part of seawater.F) Any objection to this ? Thanks, Jean-Michel