Intense Atmospheric Vortices: Proceedings of the Joint Symposium (Iutam/Iugg) Held at Reading (United Kingdom) July 14-17, 1981

ISBN-13: 9783540116578 / Angielski / Miękka / 1982 / 326 str.

L. Bengtsson; J. Lighthill

Opis

The concept of vorticity is of central importance in fluid mechanics and the change and variability of atmospheric flow is dominated by transient vortices of different time- and space scales. Of particular importance are the most in- tense vortices such as hurricanes, typhoons and tornadoes which are associated with extreme and hazardous weather events of great concern to society. In recent years the un- derstanding of these phenomena has grown due to increased and improved surveillance by satellites and aircraft as well as by numerical modelling and simulation, theoretical studies and laboratory experiments. The symposium on "Intense Atmospheric Vortices" was held at the European Centre for Medium Range Weather Forecasts (ECMWF), Reading, England, July 14-17, 1981. The subject area of the Symposium was concerned with observational work, experimental models, theoretical and numerical studies in- volving hurricanes, typhoons, tornadoes and related pheno- mena. The aim was to bring together experts on these meteo- rological processes and on the fundamental fluid-dynamic mechanisms for vorticity intensification from all parts of the world. Thirtyfour scientists participated in the Sympo- sium, including more than half of those leading world ex- perts in the field whom the organizers had invited.

Spis treści

Tropical Cyclones.- Tropical Cyclone Genesis and Intensification.- On Basic Problems in Theory and Modeling of the Tropical Cyclone.- On the Structure of Hurricanes as Revealed by Research Aircraft Data.- Lagrangian Angular Momentum Transports in Tropical Cyclones.- Numerical Analyses on the Activities of Intense Atmospheric Vortices (Typhoons) Over China.- Influence of Environmental Conditions on the Genesis of a Tropical Storm.- Model Development of Atlantic Hurricanes from Prehurricane Cloud Clusters, Depressions and Cyclones.- The Numerical Experiment on the Contribution of Landed Typhoon to the Rainfall in North China.- Estimation of Radial Distribution of Eddy Viscosity in a Mature Hurricane.- Spontaneously Growing Hurricanelike Disturbances in a Simple Baroclinic Model with Latent Heat Release.- The Factors Determining Radial Flow and Eye Formation in an Intensifying Tropical Cyclone.- Tornadoes.- The Development and Maintenance of Rotation in Convective Storms.- Cumulus Rotation: Model and Observations of a Waterspout-Bearing Cloud System.- Observational and Theoretical Aspects of Tornadogenesis.- High Resolution Numerical Simulations of the Tornadic Region Within a Mature Thunderstorm.- Numerical Studies of Tornado Structure and Genesis.- A Numerical Simulation of Multiple Vortices.- The Laboratory Modelling of Atmospheric Vortices: a Critical Review.- Vortex Breakdown and the Criterion for its Occurrence.- Pressure Fields Beneath Tornado-like Vortices.- Convection and Mixing at High Rossby Numbers in Rotating Systems.- Intense Vortex Generation by Turbulence in a Rotating Fluid.- Laboratory Models of Tornado-like Vortices.- High Vorticity Regions in Rotating Thermally Driven Flows.