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Sheikh ghaderi S H, Alizadeh T, Ziaeian Firoozabadi P, Sharifi R. Temporal and spatial analysis of dust storms in Kermanshah. Journal of Spatial Analysis Environmental Hazards 2023; 10 (1) :71-90
URL: http://jsaeh.khu.ac.ir/article-1-3273-en.html
1- , alizadehtoba@yahoo.com
Abstract:   (1349 Views)


Abstract
The aim of this study was to analyze the temporal and spatial nature of dust storms during the period 2016 to 2018 in Kermanshah Using the HYSPLIT routing model and the MCD19A2 product, the Modis sensor was performed in the Google Earth web engine.In order to route the origin of dust particles, the Lagrangian method of HYSPLIT model was used in 48 hours before the occurrence of dust phenomenon in Kermanshah at three altitude levels of 200, 1000 and 1500 meters.Findings from HYSPLIT model tracking maps indicate that the general route for dust transfer to the study area is the north-west-southeast route with the origin of the deserts of Iraq and Syria at three altitudes of 200, 1000 and 1500 meters. On June 17, 2016 and October 27, 2018, as well as the southwest-west route originating in Kuwait, Northern Saudi Arabia and part of Iraq on November 2, 2017.The results of the maps obtained from the MCD19A2 product of the Modis sensor, especially the maps of periodicity, cumulative concentration, spatial variation and the highest AOD map, show a high correlation with the routed maps extracted from the HYSPLIT model. In general, based on the findings of the maps extracted from the product MCD19A2, Modis sensor during the period 2016 to 2018 in Kermanshah, the central and eastern regions have always been more affected by dust storms than in other parts of the city. On average, they were more exposed to dust pollution than other parts of the city. In this regard, the final results show a high correlation between the actual PM10 data and the AOD values derived from the MODIS sensor.

Keyword: Dust, AOD, Modis, HYSPLIT, Kermanshah, Google Earth Engine
 
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Type of Study: Research | Subject: Special
Received: 2021/11/28 | Accepted: 2023/02/14 | Published: 2023/10/4

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