Abstract: Errors in airborne Doppler lidar measurements of the wind are evaluated using simulated wind fields and simulated lidar data derived from these wind fields. The primary motivation for this study is the evaluation of several ...

Abstract: The analysis of airborne Doppler lidar data taken by NASA near the top of the planetary boundary layer in the central valley of California is presented. These data include downward wan angles that intercept the ground. The ...

Abstract: The development of an air pollution transport model that uses an expanding terrain-following coordinate with high resolution in analytic form near the surface and a high-order accurate transport algorithm is described. The ...

Abstract: The authors have developed a relatively simple, first-order closure, Eulerian diffusion model, in which turbulent coherent structures of the convective boundary layer are explicitly included as periodic velocities imposed ...

Abstract: This study utilized conditional sampling to identify three frequent wind regimes in the lower Sacramento Valley. The major flow features of the mean diurnal wind patterns in the southern Sacramento Valley and surrounding ...

Abstract: The MacCormack scheme is a finite-difference scheme widely used in the aerospace simulations. It is a two-step algorithm, and contains a small amount of implicit numerical diffusion that makes it numerically stable without ...

Abstract: In a previous paper, the authors discussed the numerical properties of the MacCormack scheme, a finite-difference technique widely used in aerospace simulations. Here the authors report results of its application to the ...

Abstract: The results of a field study utilizing ground-based and aircraft measurements of meteorological parameters and several air pollutants are described for two summer periods in the vicinity of Yosemite National Park, California. ...