162
Vertical Structure: Baroclinic Quasi-Geostrophic Models
a
b
'l(·
It
Fig. 3.11.2a.,;. Potential vorticity in the second layer of a three-layer model showing the
homogenization of qz. As in Fig. 3.11.1 the flow is driven by an anti symmetric Ekman pumping
leading to an antisymmetric double gyre. a Contours of the time-averaged q2 showing a zone of
uniform q2 straddling the inter gyre boundary. b A three-dimensional perspective of the same
result. c The instantaneous contours of q2. Note the expulsion of q2 from the pool even for the
instantaneous field of potential vorticity rendering the pool free from potential vorticity
fluctuations. (From Rhines and Young 1982b)
Vertical Structure: Baroclinic Quasi-Geostrophic Models
a
b
'l(·
It
Fig. 3.11.2a.,;. Potential vorticity in the second layer of a three-layer model showing the
homogenization of qz. As in Fig. 3.11.1 the flow is driven by an anti symmetric Ekman pumping
leading to an antisymmetric double gyre. a Contours of the time-averaged q2 showing a zone of
uniform q2 straddling the inter gyre boundary. b A three-dimensional perspective of the same
result. c The instantaneous contours of q2. Note the expulsion of q2 from the pool even for the
instantaneous field of potential vorticity rendering the pool free from potential vorticity
fluctuations. (From Rhines and Young 1982b)