Integrating Remote Sensing, GIS, and Sedimentology Techniques for Identifying Dust Storm Sources: A Case Study in Khuzes
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RESEARCH ARTICLE
Integrating Remote Sensing, GIS, and Sedimentology Techniques for Identifying Dust Storm Sources: A Case Study in Khuzestan, Iran Peyman Heidarian1 • Ali Azhdari1 • Mohammad Joudaki2 • Javad Darvishi Khatooni1 Somaye Fathtabar Firoozjaei1
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Received: 4 October 2017 / Accepted: 14 March 2018 Indian Society of Remote Sensing 2018
Abstract There is an urgent need for zoning the dust sources, as the first step to control dust storms. Hence, this study aimed to identify the exact interior sources of dust in Khuzestan Province (Iran), using a hybrid method of remote sensing, GIS and sedimentology. To this end, the spatial data of pedology, landuse, climate, slope and sedimentology were used as the constraint layers and vegetation, land surface temperature and soil moisture were used as the major layers. The major layers were extracted by performing the necessary computational process on the image of the Landsat 8 satellite. Constraint layers were used to eliminate the regions without dust production potential. In the next step, the major layers were weighted applying the paired comparison and fuzzy analytic hierarchy process methods. Then, the final integration of the layers took place by multiplying each major layer in the respective weight, and the map of the dust sources in the region was prepared. To validate the results, field trips were done for 180 points of the sources which indicate the high accuracy of the identified regions. The results revealed that 9% of the area in Khuzestan Plain equal to 350,000 ha is regarded as the source of dust production. Moreover, according to the results, it can be said that satellite images, especially those with efficient resolutions such as Landsat 8 products, are suitable basis data for extracting indicators (temperature, humidity and vegetation) of the dust sources. Keywords Dust Storms Dust Sources Landsat Satellite Spatial Analysis Khuzestan Plain
Introduction Dust storms are considered as one of the dominant phenomena in arid and semi-arid regions of the world, and given their tremendous effects on socio-economic issues, & Peyman Heidarian [email protected] Ali Azhdari [email protected] Mohammad Joudaki [email protected] Javad Darvishi Khatooni [email protected] Somaye Fathtabar Firoozjaei [email protected] 1
Geological Survey and Mineral Explorations of Southwest Region, Ahvaz, Iran
2
Geological Survey and Mineral Explorations of Iran, Tehran, Iran
human health and environment (Zhang et al. 2015) have turned into a global concern (Cao et al. 2015). These storms are often resulted from turbulent (fronts and convections) and strong winds and erosion of desert surfaces, and lift up a large amount of dust from soft, fine desert surfaces (Modaihsh and Mahjoub 2013), and reduce the visibility to less than 1000 m (Goudie 2014; Cao et al. 2015). Dust storms disrupt in some cases such as radiant balance, air temperature, life span and optical properties of the cloud (Wong and Dessler 2005), rain processes, geochemistry o
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