3 papers
physics.ao-ph2019
Convective Organization and Eastward Propagating Equatorial Disturbances in a Simple Excitable System
Geoffrey K Vallis, James Penn
We describe and illustrate a mechanism whereby convective aggregation and eastward propagating equatorial disturbances, similar in some respects to the Madden--Julian oscillation,…
astro-ph.EP2018
Atmospheric Circulation and Thermal Phase-Curve Offset of Tidally and Non-Tidally Locked Terrestrial Exoplanets
James Penn, Geoffrey K Vallis
Using an idealised general circulation model, we investigate the atmospheric circulation of Earth-like terrestrial planets in a variety of orbital configurations. We relax the comm…
astro-ph.EP2017
The thermal phase curve offset on tidally- and non-tidally-locked exoplanets: A shallow water model
James Penn, Geoffrey K. Vallis
Using a shallow water model with time-dependent forcing we show that the peak of an exoplanet thermal phase curve is, in general, offset from secondary eclipse when the planet is r…