Richard Rotunno

TL;DR: An axisymmetric numerical model has been developed to simulate Ward's (1972) laboratory experiments as mentioned in this paper, and it is shown that the core radius is independent of the Reynolds number at high Reynolds number.

TL;DR: In this article, numerical simulations have been performed using the Weather Research and Forecasting (WRF) model, set up with two domains, in a two-way-nested configuration.

TL;DR: In this article, the effects of subgrid mixing and numerical filtering in mesoscale cloud simulations by examining the sensitivities to the parameters in turbulenceclosure schemes as well as the parameters of the numerical filters were examined.

TL;DR: In this article, a case study of the 1994 Piedmont flood is carried out by performing several numerical experiments using the MM5 model and sensitivity tests and analyses that suggest the following description of the events leading to the flood: rising motion ahead of an upper-level trough, progressing from Spain towards Italy, initiated deep convection within the conditionallyunstable air existing over the Mediterranean, thus, a band of intense precipitation and low-levelsoutherly winds formed and moved eastward with the upper trough.

TL;DR: In this paper, the authors address the question: What is the ultimate state of a region of the atmosphere which is initially unstable to two-dimensional symmetric disturbances, and establish a set of dynamical archetypes to understand whether and how such a neutral state is established.