Title : ( Meteorological conditions associated with severe dust storms in the Sistan region, Iran )
Authors: Kaskaoutis D.G , Alireza Rashki , Houssos E.E , Abbas Mofidi , Bartzokas A ,
Full TextAbstract
The present work focuses on examining the synoptic and dynamic meteorological conditions associated with dust-storm outbreaks in the Sistan region, southeastern Iran during the summer season (June-September) for the years 2001 to 2012. The dust-storm days (total number of 356) are related to visibility records below 1 km at Zabol meteorological station, located well within the dust source region. RegCM4 model simulations reveal that the local intense Levar wind, blowing from northern directions during the summer season, plays a major role in dust outbreaks. Furthermore, the high surface heating and the valley-like characteristics of the region strongly influence the meteorological dynamics, the Levar wind and the formation of a low-level jet over the region that are strongly linked with dust exposures. NCEP/NCAR reanalysis reveals that the dust storms are associated with low sea- level pressure conditions over the whole south Asia during summer, while at 700 hPa a trough of low geopotential heights over India along with a ridge over Arabia and central Iran is the most common scenario.
Keywords
, Dust storms, Levar wind, Sistan, Model simulation, Synoptic-Dynamic Meteorology
@inproceedings{paperid:1047374,
author = {Kaskaoutis D.G and Rashki, Alireza and Houssos E.E and Mofidi, Abbas and Bartzokas A},
title = {Meteorological conditions associated with severe dust storms in the Sistan region, Iran},
booktitle = {12th International Conference on Meteorology, Climatology and Atmospheric Physics COMECAP 2014},
year = {2014},
location = {Heraklion},
keywords = {Dust storms; Levar wind; Sistan; Model simulation; Synoptic-Dynamic Meteorology},
}
%0 Conference Proceedings
%T Meteorological conditions associated with severe dust storms in the Sistan region, Iran
%A Kaskaoutis D.G
%A Rashki, Alireza
%A Houssos E.E
%A Mofidi, Abbas
%A Bartzokas A
%J 12th International Conference on Meteorology, Climatology and Atmospheric Physics COMECAP 2014
%D 2014
