American Journal of Sustainable Cities and Society Issue 3, Vol. 1 January 2014 Available online on http://www.rspublication.com/ajscs/ajsas.html ISSN 2319 – 7277 A Survey on the Influence of Synoptic Atmospheric Patterns of the Air Pollution of Mashhad keyvan bahrami 1, Bahram mollazadeh 2 ,Tooran hosseinzadeh 3,vahideh sayad4, saadoun salimi5 1* Msc of Synoptic climate, Department kharazmi University of Tehran, 2*Msc of Synoptic climate, Department kharazmi University of Tehran, 3* Msc of applied climatology, Department shahid beheshti University of Tehran, 4* Msc of climatology, Department tarbiat modarres University of Tehran, 5* Msc of Synoptic climate, Department kharazmi University of Tehran,
[email protected] Tel: + (98)9199922991 ABSTRACT: The mechanism of the climatic phenomena and their prediction can be recognizes through synoptic systems' studies. In this research, the relation between synoptic patterns and the extremely polluted days of Mashhad is observed. For this purpose, the data of CO were collected from Mashhad's Department of Environment and the zoning map of the whole city was made by the GIS program by IDW method. Afterwards, synoptic atmospheric patterns of the polluted days (4th December 2012 to 25th November 2013) were extracted by hgt, slp and omega data, which were taken from NOAA organization, by the GRADS program. The results showed that the major source of the pollution and its intensifying density in the close layers of atmosphere of the earth is caused by the domination of Siberian High in two ways: 1) High Pressure Flames 2) Ring of Fire Block Key words: Air pollution, Siberian high, GRADS, GIS Corresponding Author: Salimi.