Approx. | Energy flux vector | Equation | ||
---|---|---|---|---|
Level-0 | \(\overline {\mathbf {V}^{*} p^{*}} - \nabla ^{*} \times [(\overline {p^{*} \varphi ^{*}})/2+ (\overline {u^{*}_{t^{*}t^{*}}\varphi ^{*}})/\beta ^{*}]\mathbf {z}\) | Solid black | – | |
Level-1 | \(\overline {\mathbf {V}^{*} p^{*}} - \nabla ^{*} \times [(\overline {p^{*} \varphi ^{\mathrm {app*}}})/2+ (\overline {u^{*}_{t^{*}t^{*}}\varphi ^{\mathrm {app*}}})/\beta ^{*}]\mathbf {z}\) | Dashed orange | – | |
Level-2 | \(\overline {\mathbf {V}^{*} p^{*}} - \nabla ^{*} \times (\overline {p^{*} \varphi ^{\mathrm {app*}}})/2\mathbf {z}\) | Solid blue | (c) | |
QG | \(\overline {\mathbf {V}^{*} p^{*}} -\nabla ^{*} \times [\overline {{p^{*}}^{2}}/(2f^{*})]\mathbf {z}\) | – | (b) | |
f-Plane | \(\overline {\mathbf {V}^{*} p^{*}}\) | Dashed green | (a) | |
Definition of EPV-based streamfunctions | ||||
\(\nabla ^{*2} \varphi ^{*} - (f^{*}/c^{*})^{2} \varphi ^{*} - (3/c^{*2})\varphi ^{*}_{t^{*} t^{*}} = q^{*}\), | ||||
∇∗2 φ app∗−(f ∗/c ∗)2 φ app∗=q ∗, |