| θ w , o n s h o r e + θ o f f s h o r e | 1 / 2 ( u ∗ ∝ θ 1 / 2 ) {\displaystyle {{\left|{{\theta }_{w{\text{,}}onshore}}+{{\theta }_{offshore}}\right|}^{1/2}}\left({{u}_{*}}\propto {{\theta }^{1/2}}\right)}
