HENCH AND LUETTICH
FIG. 1. Idealized inlet (a) model finite-element grid and (b) bathymetry. The grid contains 48 273 nodes and 95 884
elements. Axes distances are in kilometers.
c. Numerical model forcing, run parameters, and
Oceanic and Atmospheric Administration (NOAA) sur-
vey (at 85-m track spacing) and was supplemented in
near inlet areas with bathymetry collected with our own
The idealized inlet was forced at the offshore ocean
research vessel (at 50-m track spacing). Near inlet shore-
boundary with specified elevations of 0.15-m amplitude
lines were specified with global positioning satellite
and zero phase at the M 2 frequency. This forcing was
(GPS) surveys conducted in 1998, consistent with the
selected to produce maximum velocities in the inlet
bathymetric data. Nodal spacing ranged from about 2
km offshore to 25 m in the sound, while grid reso-
throat of about 1 m s 1 (comparable to Beaufort Inlet).
lution in the inlet was nominally 50 m.
Zero normal-flow boundary conditions were imposed
FIG. 2. Beaufort Inlet (a) model finite-element grid and (b) bathymetry. (c), (d) Zoom of inlet shows high-grid-resolution areas. The grid
contains 53 505 nodes and 102 228 elements.