A new class of persistent vacillations of the winter polar vortex, under the action of
topographic wave forcing and radiative cooling, is identified in numerical integrations of the …

Unsteady nonlinear shallow-water flows typically emit inertia-gravity waves through a
process called “spontaneous adjustment-emission.” This process has been studied …

A New Interpretation of Vortex-Split Sudden Stratospheric Warmings in Terms of Equilibrium
Statistical Mechanics in: Journal of the Atmospheric Sciences Volume 74 Issue 12 (2017) Jump …

The diabatic contour-advective semi-Lagrangian (DCASL) algorithms previously constructed
for the shallow-water and multilayer Boussinesq primitive equations are extended to …

We investigate persistent low‐frequency variability of the stratospheric winter polar vortex in
a rotating spherical shallow‐water model under the action of topographic wave forcing and …

Vortex-split stratospheric sudden warmings (S-SSWs) are investigated by using the
Japanese 55-year Re-analysis (JRA-55), a spherical barotropic quasi-geostrophic (QG) …