Wind of 120 days

Wind of 120 days (Persian: باد صد و بیست روزه‎‎) is a strong Summer wind that blows from late in May to late in September in the east and southeast of the Iranian Plateau.^[1] It's known as wind of 120 days because it blows for four months.^[2] The usual speed of the wind is around 30–40 km per hour or less, but seldom it can exceed 100–110 km per hour.^[1] The direction of the wind is fairly constant.^[3] Wind of 120 days is one of the two well-known winds in Iran, the other being Shamal.^[4]

The wind originates from the central deserts in Iran and blows toward Sistan and Baluchestan Province. It's hot and carries abrasive sand and particles.^[5] This wind together with a high temperature is a cause of intense evaporation of sheets of water in Sistan.^[6]

Footnotes

Sources

• "BĀD (1) – Encyclopaedia Iranica". Encyclopædia Iranica. 1988. Retrieved 2015-05-24. 
• Fisher, W.B. (1968). The Cambridge History of Iran. Cambridge histories online. Cambridge University Press. ISBN 978-0-521-06935-9. Retrieved 2015-05-24. 
• Spilsbury, L. (2011). Iran. Countries around the world. Pearson Education. ISBN 978-1-4062-3349-0. Retrieved 2015-05-24. 
• Kheirabadi, M. (2009). Iran. Modern World Nations Series. Facts On File, Incorporated. ISBN 978-1-4381-0512-3. Retrieved 2015-05-24. 
• Mojtahed-Zadeh, P. (2007). Boundary Politics and International Boundaries of Iran: A Study of the Origin, Evolution, and Implications of the Boundaries of Modern Iran with Its 1. Universal Publishers. ISBN 978-1-58112-933-5. Retrieved 2015-05-24.