Investigating the Maximum Wind Speed and Wind Direction of Synoptic Stations in the East of Lake Urmia

Document Type : Research Article

Authors

• Pouya Allahverdipour ¹
• Mohammad Taghi Sattari ²

¹ Department of Water Engineering, Faculty of Agriculture, University of Tabriz, Tabriz, Iran

² Department of Water Engineering, Faculty of Agriculture, Tabriz University, Tabriz, Iran.

10.22067/geoeh.2024.86654.1464

Abstract

Considering the importance of wind in terms of its risks and potentials, the study of this issue is of interest to researchers in different countries. East Azerbaijan province is located in the east of Lake Urmia and is one of the windy regions of the country and due to its proximity to the salt bed resulting from the drying up of Lake Urmia, it is exposed to environmental and health threats. In this research, the speed, trend and direction of the maximum wind in 16 synoptic stations located in the east of Lake Urmia during the period of 1394-1401 were investigated. The non-parametric Mann-Kendall test and Sen’s slope estimator were used to determine the trend of wind speed changes and the Wind Rose diagram was used to check the prevailing wind direction. According to the results, the maximum wind speed changes had significant increasing trend only in Shabestar and Sahand stations with a slope of +0.089 and +0.070, respectively, and in Tabriz, Malekan and Maragheh stations, with a slope of -0.058, -0.037 and -0.092, respectively, had a significant decreasing trend. In most stations, the prevailing wind direction is from the west and southwest, which can cause an increase in respiratory diseases in the future due to salt storms arising from the dry bed of Lake Urmia in its eastern provinces. The frequency of strong winds is high in all synoptic stations and more than 50% of the maximum winds in all stations have a speed of more than 11.11 m/s.

Keywords

• Wind
• Mann-Kendall
• Sen’s Slop
• Wind Rose
• Lake Urmia

Main Subjects

• Climatic and atmospheric hazards

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