Geophysical and Astrophysical Fluid Dynamics Geophysical and Astrophysical Fluid Dynamics, In press, pp.1-20. ⟨10.1080/03091929.2019.1670827⟩ Geophysical and Astrophysical Fluid Dynamics, Taylor & Francis, In press, pp.1-20. ⟨10.1080/03091929.2019.1670827⟩