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Progress in Earth and Planetary Science
Fig. 6 | Progress in Earth and Planetary Science

Fig. 6

From: Towards a seamlessly diagnosable expression for the energy flux associated with both equatorial and mid-latitude waves

Fig. 6

Comparisons of three expressions for the horizontal flux of wave energy (arrows): a the pressure flux [see Eq. (3)], b the pressure flux plus the additional rotational flux of Orlanski and Sheldon (1993) [see Eq. (4)], and c the pressure flux plus the additional rotational flux of the present study [see Eq. (15)]. In both b and c, the additional fluxes have been calculated using the rotation operator in the spherical coordinate system to be consistent with the model formulation. Green contours in b and c show the distributions of \(\overline {{p^*}^{2}}/(2f^*)\) and \(\overline {p^* \varphi ^{\mathrm {app*}}}/2\), respectively (solid and dotted lines indicate positive and negative values, respectively, with an interval of 10−2 m 4/s 3). Color shading in all panels shows the horizontal divergence of the time-averaged energy flux. Note that the additional rotational flux in b and c has no influence on the divergence. All quantities have been calculated from the output of the same experiment with a time-average between t ∗=19T ∗ and 20T ∗

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