Monitoring of dust haze phenomenon using remote sensing and GIS and its synoptic analysis

Article 5، Volume 23، Issue 91، Autumn 2014، Page 69-80 XML PDF (1566 K) Document Type: Research Paper Abstract Dust haze phenomenon is one of the atmospheric phenomena which leaves negative environmental impacts and it is one of the most important environmental challenges in West and South-West of Asia، particularly in Iran. This phenomenon related to desertification processes and occurs in arid and semi-arid regions of the world. Remote sensing is science and technique to obtain information from geographic phenomena without any contact with them. To detect the phenomenon of dust haze the images with wide coverage and high frequency are needed therefore the images related to MODIS sensor is suitable for study of dust haze phenomenon due to high spectral bands. The main objectives of this research was identification the sources generating dust haze entering the West and South West of Iran and monitoring the movement of dust haze. In this research the source of two occurrence of dust haze phenomenon related to 2011 which has occurred in areas of West and South West of Iran was identified with the help of satellite images and using thermal and visible bands of MODIS sensor and Ackerman index. Then monitoring was carried out and synoptic analysis to identify the movement of dust haze from its source to Iran was done By using500 hectopascal geopotential height synoptic data، sea level pressure and 500and 100 hectopascal wind direction maps. Finally، its movement from the source to Iran was monitored by using GIS and Spatial Analysis Tools.