Application of HYSPLIT and WRF/Chem Models to Investigate the Dust Storm Episodes
How to cite: Broomandi, P.; Dabir, B.; Bonakdarpour, B.; Rashidi, Y. Application of HYSPLIT and WRF/Chem Models to Investigate the Dust Storm Episodes. Preprints 2016, 2016100068 (doi: 10.20944/preprints201610.0068.v1). Broomandi, P.; Dabir, B.; Bonakdarpour, B.; Rashidi, Y. Application of HYSPLIT and WRF/Chem Models to Investigate the Dust Storm Episodes. Preprints 2016, 2016100068 (doi: 10.20944/preprints201610.0068.v1).
atmospheric environment over wide areas. Methods: The annual and seasonal changes in
meteorological parameters associated with the occurrence of dust storms were studied. The
features of an intense dust storm and its transport characteristics were studied during June 7th
to June 9th 2010 in Ahvaz city. Temporal and spatial distribution of Middle Eastern dust storm
event was analyzed by models of HYSPLIT and WRF/Chem, and in- situ observations. Results:
A disagreement between the occurrences of dust storms, temperature, relative humidity and
rainfall, show the major source of dust storms over Ahvaz city are neighboring countries. Using
HYSPLIT results, the dust particles are mainly transported from north western region of Iraq
and eastern Syria to downward areas including Ahvaz city. The arrived Dust aerosols mixed
with local anthropogenic emissions, led to the highest PM10 concentration of 4200 ppm. The
model results were found to well reproduce temporal and spatial distribution of mineral dust
concentrations according to in-situ measurements. Conclusion: The performance of WRF/Chem
was acceptable for simulation of temporal and spatial distributions of dust storm events.
Therefore, it can be taken as a reference in daily air quality forecasting.
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