A reduced form model for ozone based on two decades of CMAQ simulations for the continental United States

Atmospheric Pollution Research

P. StevenPorter¹ 

关键词: Reduced form model;    Ozone;    Emissions;    Meteorology;    Community multiscale air quality model;   

DOI  :  10.1016/j.apr.2016.09.005

学科分类：农业科学（综合）

来源: Dokuz Eylul Universitesi * Department of Environmental Engineering

【 摘 要 】

A Reduced Form Model (RFM) is a mathematical relationship between the inputs and outputs of an air quality model, permitting estimation of additional modeling without costly new regional-scale simulations. A 21-year Community Multiscale Air Quality (CMAQ) simulation for the continental United States provided the basis for the RFM developed in this study. Predictors included the principal component scores (PCS) of emissions and meteorological variables, while the predictand was the monthly mean of daily maximum 8-h CMAQ ozone for the ozone season at each model grid. The PCS form an orthogonal basis for RFM inputs. A few PCS incorporate most of the variability of emissions and meteorology, thereby reducing the dimensionality of the source-receptor problem. Stochastic kriging was used to estimate the model.

【 授权许可】

CC BY