TITLE:
Application of WRF Model for Vehicular Pollution Modelling Using AERMOD
AUTHORS:
Awkash Kumar, Anil Kumar Dikshit, Sadaf Fatima, Rashmi S. Patil
KEYWORDS:
Vehicular Pollution Modeling, AERMOD, WRF
JOURNAL NAME:
Atmospheric and Climate Sciences,
Vol.5 No.2,
March
10,
2015
ABSTRACT: Vehicular
pollution is becoming significant in urban areas because of increasing
population. This is at ground level, so it gives high population exposure. In
this study, Chembur, which is the most polluted area in Mumbai city due to
industrial and vehicular sources, is selected for vehicular pollution modeling
using AMS/EPA Regulatory Model (AERMOD). Meteorological parameters, land use
surface characteristics and source emission data are collected as required by
AERMOD. The results of modelling depend upon reliability of input data and
meteorological data has a vital role in the performance of the model.
Generally, temporally and spatially interpolated meteorological data is used in
modeling. This is generally collected from nearby meteorological station but
this causes inaccuracy of the results. In this paper, the Weather Research and Forecasting
(WRF) model has been used to generate onsite data on nine meteorological
parameters. The modeling of six roads of Chembur has been performed using above
meteorological data. This approach gives good results of traffic modeling. The
results of AERMOD are compared with observed air quality which has contribution
from all sources in the region and relative contribution of vehicular sources
identified.