Simulation of Daily Variation of Suspended Particulate Matter over Delhi: Relative Roles of Vehicular Emission, Dust, and Domestic Appliances
IR@C-MMACS: CSIR-Centre for Mathematical Modelling and Computer Simulation, Bangalore
View Archive Info| Field | Value | |
| Title |
Simulation of Daily Variation of Suspended Particulate Matter over Delhi: Relative
Roles of Vehicular Emission, Dust, and Domestic Appliances
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| Creator |
Goswami, P
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| Subject |
Environment Pollution
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| Description |
The massive growth in the size and the population of cities over the past few decades has led to serious
deterioration in the quality of air. One of the important constituents of airborne pollutants, which is a major
health hazard, is suspended particulate matter (SPM). SPM is also an important source of cloud condensation
nuclei; accurate simulations of SPM with sufficiently long lead thus have many applications, from
issuing health advisories to forecasting fog. One of the biggest challenges in modeling air pollution in
general and SPM in particular is to identify and mathematically represent the (location specific) sources and
sinks. In this study the authors present a dynamical model for daily values of SPM over Delhi, India. The
meteorological parameters are taken from the daily values from NCEP reanalysis. The validation is carried
out against observations generated by the Central Pollution Control Board (CPCB) in India for the period
2000–05. Error statistics show that the model can capture a significant part of the observed variability of
SPM. An evaluation of the relative contributions of various sources show that while vehicular pollution
accounts for a large fraction of the SPM throughout the year, steep increases in the winter and the
premonsoon periods are accounted for by fossil fuel burning and wind blown dust, respectively. Simulation
with a doubling scenario for traffic congestion shows the effect to have strong seasonality. Such a model can
be also interfaced with a seasonal forecast model or a climate model for enhanced scope of seasonal
forecasts or for an investigation of the impact of SPM on regional climate change.
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| Publisher |
American Meteorological Society
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| Date |
2008-09
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cir.cmmacs.ernet.in/248/1/MWR_2008_PG%2DJuri.pdf
Goswami, P (2008) Simulation of Daily Variation of Suspended Particulate Matter over Delhi: Relative Roles of Vehicular Emission, Dust, and Domestic Appliances. Monthly Weather Review, 136. pp. 3597-3607. ISSN Online ISSN: 1520-0493, Print ISSN: 0027-0644 |
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| Relation |
http://journals.ametsoc.org/loi/mwre
http://cir.cmmacs.ernet.in/248/ |
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