>
a
0
,..:
76
X
Homogeneous Models of the Ocean Circulation
>
·1.0
X
c ~+---------------,---------------,
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~
~
~+---------------,---------------, ·1.0
0.0
1.0
X
X
Fig. 2.12.7a--d. Solution of the single-gyre problem for four different boundary conditions showing
the streamfunction field. In each case bJ/bM = 1.08 and hs/hM = 0.171. a Hyperslip. b Superslip. c
Slip. d No-slip. (From Ierley and Young, pers. comm.)
where the Sverdrup flow is eastward. Moore reasoned that only in the case of
eastward flow could Rossby waves be stationary and take part in a steady
solution of the circulation problem, and he suggested the damped Ross by wave
as a model for the boundary-layer structure in the northern part of the gyre.
Moore did not examine the full boundary-layer problem but looked only at the
asymptotic region where the boundary layer is supposed to merge smoothly to
the interior. For simplicity he considered the case with no bottom friction.
b
d