| OPEN BOUNDARY CONDITIONS | ||
| Radiation Conditions | ||
| GWI (Gravity Wave Implicit) |  |
Chapman (1985) |
| BKI (Blumberg & Khanta Implicit) |  |
Blumberg & Khanta (1985) |
| FLA (Flather radiation) |  |
Flather (1976) |
| FRO (Flather radiation + Roed local solution |  |
This paper |
ORE (Orlanski Radiation Explicit) ORI (Orlanski Radiation Implicit) SOE (Somerfeld Explicit) SRE (Somerfeld Radiation Explicit - 2nd order) MOI (Modified Orlanski Implicit) |
|
Orlanski (1976) ; Chapman, (1985) Chapman (1985) Miller & Thorpe (1981) Tang & Grimshaw (1996) Camerlengo & O’Brien (1980); Chapman (1985) |
| Characteristic Methods | ||
| HOC (Hedstrom O’Brien Characteristic) |  |
Roed & Cooper (1987) |
| Relaxation Methods | ||
| SPO (Sponge layer + ORI) | In sponge layer  |
Israeli & Orszag (1981); Chapman (1985) |
| MAR (Martisen flow relaxation scheme) |  |
Martinsen & Enghedal (1987) |
| MRO (Martisen + Roed local solution) |  |
Martinsen & Enghedal (1987) |
corresponds to the
OB at the right (left) side of the model.. Other variables are; C
the wave phase speed, Co the shallow water wave speed, Tf
a friction time scale, Uo(t), h o (t),
and f o(t) prescribed boundary values, Cd
the bottom friction coefficient, Cdi the bottom friction coefficient
in the interior domain , e a constant, x
the zonal coordinate, xB the position of the open boundary, and a the relaxation parameter.
;