■ Abstract Various forms of atmospheric moist convection are reviewed through a consideration of three prevalent regimes: stratocumulus; trade-wind; and deep, precipitating, maritime convection. These regimes are chosen because they are structural components of the general circulation of the atmosphere and because they highlight distinguishing features of this polymorphous phenomenon. In partic...

INTRODUCTION 5 billion people around the world do not have access to safe, affordable, timely surgical care. This series of qualitative interviews was launched by The Lancet Commission on Global Surgery (LCoGS) with the aim of understanding the contextual challenges-the specific circumstances-faced by surgical care providers in low-resource settings who care for impoverished patients, and how t...

A microburst is a local, intense downdraft which induces an outburst of damaging winds near the ground which extends 4 km or less. Microbursts are of interest to researchers because of the strong, occasionally damaging surface winds they produce, and the hazardous wind patterns they create for aircraft in the landing or takeoff phases of flight. The dynamics and aircraft hazards posed by an iso...

We introduce a simple model to investigate large scale behavior of gradient flows based on a lattice of coupled maps which, in addition to the usual diffusive term, incorporates advection, as an asymmetry in the coupling between nearest neighbors. This diffusive-advective model predicts traveling patterns to have velocities obeying the same scaling as wind velocities in the atmosphere, regardin...

Observations of young open clusters have revealed a bimodal distribution of fast and slower rotation rates that has proven difficult to explain with predictive models of spin down that depend on rotation rates alone. The Metastable Dynamo Model proposed recently by Brown, employing a stochastic transition probability from slow to more rapid spin down regimes, appears to be more successful but l...

A wire suspension system to enable wind tunnel Virtual Flight Testing of missile models has been designed, built, and tested. This prototype used six steel cables to suspend a model-mounting collar in the tunnel. The collar contained a three-axis ball-bearing pivot to enable roll, pitch, and yaw motion. Tension load cells in each of the cables allowed measurement of forces on the model. This pa...

Forecasts of 96 shocks in the solar wind at the L1 point made by the HAF kinematic solar wind model made between 5 February and 31 December 2001 are compared to algorithmically determined shocks from real-time data from the SWEPAM and MAG instruments aboard the ACE spacecraft. Traditional measures of forecast skill used by the meteorological community are applied to these forecasts and observat...