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RISClassification of Weather Patterns and Associated Trajectories of High-Ozone Episodes in the Houston–Galveston–Brazoria Area during the 2005/06 TexAQS-II
Publisher: American Meteorological Society
Abstract: The 850-hPa synoptic flow patterns over eastern Texas and adjacent states during the 2005/06 Second Texas Air Quality Studies (TexAQS-II) period were classified into six groups using a two-stage clustering method. This ...
Characterizing Ventilation and Exposure in Street Canyons Using Lagrangian Particles
Publisher: American Meteorological Society
Abstract: he residence time measures the rate at which a pollutant escapes from a region of interest. Previous studies of urban ventilation have estimated the mean residence time from Eulerian data by assuming a spatially homogeneous ...
Linear Error Dynamics for Turbulent Flow in Urban Street Canyons
Publisher: American Meteorological Society
Abstract: he ability to make forecasts depends on atmospheric predictability and the growth of errors. It has recently been shown that the predictability of urban boundary layers differs in important respects from that of the free ...
A Long-Term WRF Meteorological Archive for Dispersion Simulations: Application to Controlled Tracer Experiments
Publisher: American Meteorological Society
Abstract: AbstractA long-term archive of meteorological data using the Weather Research and Forecasting (WRF) Model was created to provide data that are compatible with the Hybrid Single-Particle Lagrangian Integrated Trajectory ...
A Closer Look at Chaotic Advection in the Stratosphere. Part II: Statistical Diagnostics
Publisher: American Meteorological Society
Abstract: Statistical diagnostics of mixing and transport are computed for a numerical model of forced shallow-water flow on the sphere and a middle-atmosphere general circulation model. In particular, particle dispersion statistics, ...
Example of Flow Forecasting with Kalman Filter
Publisher: American Society of Civil Engineers
Abstract: Problems of filter design arise in applications of the Kalman Filter to ARMAX models used in flow forecasting. In this paper, two issues often raised by forecasters are addressed. First, the formulation of ARMAX flow models ...
A Closer Look at Chaotic Advection in the Stratosphere. Part I: Geometric Structure
Publisher: American Meteorological Society
Abstract: The relevance of chaotic advection to stratospheric mixing and transport is addressed in the context of (i) a numerical model of forced shallow-water flow on the sphere, and (ii) a middle-atmosphere general circulation ...
Finite Element Analysis Simulation of the Effect of Induction Hardening on Rolling Contact Fatigue
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The objective of this research is to conduct a finite element analysis to better understand the effects of induction hardening on rolling contact fatigue (RCF). The finite element analysis was developed in three-dimensional ...
Inline Coupling of WRF–HYSPLIT: Model Development and Evaluation Using Tracer Experiments
Publisher: American Meteorological Society
Abstract: he Hybrid Single-Particle Lagrangian Integrated Trajectory model (HYSPLIT), a Lagrangian dispersion model, has been coupled (inline) to the the Weather Research and Forecasting (WRF) Model meteorological model in such a ...
Predictability of Rotating Stratified Turbulence
Publisher: American Meteorological Society
Abstract: Although predictability represents one of the fundamental problems in atmospheric science, gaps in our knowledge remain. Theoretical understanding of the inverse error cascade is limited mostly to homogeneous, isotropic ...