What I want is to use evenly-divided sigma-coordinate when h<Tcline in ROMS. In reality, The coding make it impossible.
1) in current s-coordinate coding, hc=min(Tcline, hmin). Therefore hc<=Tcline. not what i want.
2) if set hc=Tcline, then for h<Tcline. Middle layers will thinner than surface and bottom layer, even negative.
Any easy way to implement it? It should be pretty simple, does ROMS already have it or just my version is too old. Thanks.