On the mortality of morning glories

The Gulf of Carpentaria morning glory has been simulated with a coarse resolution three-dimensional mesoscale (Pielke) model with orography. The simulation is surprisingly good. It predicts (as observed) that the glory should propagate with little attenuation during the night hours, although there is no westerly thermal wind in the model. Its evidence is clear that the glory marks the onset of a bore rather than a finite-length long wave; and it shows with little doubt that the glory dissipates rapidly, at least with cloudless conditions, under the influence of solar heating over land, and is not likely to be responsible for the pressure waves observed at Tennant Creek, far inland to the west.