A Gibbs Sampling Algorithm to Estimate the Occurrence of Ozone Exceedances in Mexico City
نویسندگان
چکیده
منابع مشابه
Comparing the Adequacy of Some Non-Homogeneous Poisson Models to Estimate Ozone Exceedances in Mexico City
We consider some non-homogeneous Poisson models to estimate the mean number of times that a given environmental threshold of interest is surpassed by a given pollutant. Seven different rate functions for the Poisson processes describing the models are taken into account. The rate functions considered are the Weibull, exponentiated-Weibull, and their generalisation the Beta-Weibull rate function...
متن کاملAn Appraisal of Bayesian Melding for Physical-Statistical Modeling
In this technical report, we review the Bayesian melding model, proposed by Fuentes and Raftery (2005). We give technical details about using Gibbs sampling algorithm to fit the model and critically assess the model through various simulation studies and applications of combing ozone measurements with simulated ozone levels from deterministic model AQM. keywords: Bayesian melding, Bayesian hier...
متن کاملComparison of emissions from on-road sources using a mobile laboratory under various driving and operational sampling modes
Mobile sources produce a significant fraction of the total anthropogenic emissions burden in large cities and have harmful effects on air quality at multiple spatial scales. Mobile emissions are intrinsically difficult to estimate due to the large number of parameters affecting the emissions variability within and across vehicles types. The MCMA-2003 Campaign in Mexico City has showed the utili...
متن کاملImpact of Mexico City emissions on regional air quality from MOZART-4 simulations
An extensive set of measurements was made in and around Mexico City as part of the MILAGRO (Megacity Initiative: Local and Global Research Observations) experiments in March 2006. Simulations with the Model for Ozone and Related Chemical Tracers, version 4 (MOZART4), a global chemical transport model, have been used to provide a regional context for these observations and assist in their interp...
متن کاملDetermination of the Equilibrium Parameters of Gaseous Detonations Using a Genetic Algorithm
The present work is concerned with the development of a new algorithm for determination of the equilibrium composition of gaseous detonations. The elements balance equations, and the second law of thermodynamics (i.e., the minimization of the Gibbs free energy of products), are used to determine the equilibrium composition of the detonation products. To minimize the Gibbs free energy with tradi...
متن کامل