A computer program was developed to predict the dispersion of gas pollutant in the atmosphere. This program relies on puff method, and in order to consider the wind shear effects, the program has the ability to consider the complete dynamic and unsteady atmospheric conditions. Plume rise of hot pollutants due to buoyancy effects was also considered. The program has the capacity to perform the r...

Atmospheric rivers (ARs) have, in recent years, been recognized as the cause of the largemajority of major floods in rivers all along the U.S. West Coast and as the source of 30%–50% of all precipitation in the same region. The present study surveys the frequencywith whichARs have played a critical role as a common cause of the end of droughts on the West Coast. This question was based on the o...

A method based on a statistical approach of estimating uncertainty in simulating the transport and dispersion of atmospheric pollutants is developed using observations and modeling results from a tracer experiment in the complex terrain of the southwestern USA. The method takes into account the compensating nature of the error components by representing all terms, except dispersion error and va...

Prior numerical modelling studies show that atmospheric dispersion is sensitive to surface heterogeneities, but past studies do not consider the impact of a realistic distribution of surface heterogeneities on mesoscale atmospheric dispersion. While these focussed on dispersion in the convective boundary layer, the present work also considers dispersion in the nocturnal boundary layer and above...

Review comments on “How to improve the air quality over mega-cities in China? – Pollution characterization and source analysis in Shanghai before, during, and after the 2010 World Expo” by Huang et al. This manuscript provides an important study on the PM2.5 pollution in Shanghai before, during, and after the 2010 World Expo. The topic is applicable for Atmospheric Chemistry and Physics; howeve...

Seasonal prediction with dynamical models of El Niño events, and the associated changes in the Southern Oscillation and atmospheric circulation, has been an area of intense interest and effort for more than two decades. The early experimental forecasts of El Niño-Southern Oscillation (ENSO) events (Cane and Zebiak 1985; Cane et al. 1986; Zebiak and Cane 1987; Battisti and Hirst 1989; Kleeman 19...

The early history of the atmospheric neutrino anomaly is closely tied to the growth of grand unified theories. Grand unified theories inspired the experimental search for proton decay which led to large well shielded detectors. The primary background to proton decay was due to atmospheric neutrinos so they were studied in some detail. Neutrino oscillations figured prominently at the first works...

We develop an equilibrium directed search model of the labor market where workers can simultaneously apply for multiple jobs. Our main theoretical contribution is to integrate the portfolio choice problem faced by workers into an equilibrium framework. All equilibria of our model exhibit wage dispersion. Consistent with stylized facts, the density of wages is decreasing and higher wage firms re...

A selection of illustrative examples is used in reviewing wind tunnel and water tank modelling of atmospheric dispersion, the aim being to discuss cases where the laboratory work has been a key factor in developing scientific understanding and instigating further research. The areas included are: basic dispersion processes, plume rise, buildings effects, urban areas, dense gas dispersion, conce...