Studying the Effects of El Nino Southern Oscillation on Precipitation based on Southern Oscillation Index: Case Study for the Region of Shahr-e-Kord in Iran

Authors

  • Tofigh Sadi Khuzestan Water and Power Authority Co., Ahwaz, Iran
  • Zahra Arzjani Faculty of Geography, Islamic Azad University, Central Tehran Branch, Tehran, Iran
  • Maryam Mosa Zadeh Department of Environment, Science and Research Branch, Islamic Azad University, Khuzestan, Iran

Keywords:

ENSO, El Nino, La Nina, SOI, Shahr-e-Kord city

Abstract

El Nino Southern Oscillation (ENSO) phenomena is one of the atmospheric events causing climatic variability Worldwide that demonstrates a teleconnection pattern on a global scale. It influences the whole southern hemisphere and a great part of northern hemisphere beyond countries and continents. The present research investigates the impacts of this phenomenon on precipitation in Shahr-e-Kord region, southwest Iran using Southern Oscillation Index. Monthly precipitation records of Shahr-e-Kord gauging station for a period of 1956-2005 were gathered for the purpose of this study and the results showed that a significant correlation of 0.01 and 0.05 exists for precipi­tation data of several months of the year over specific time periods. This correlation is negative which emphasizes the fact that the El Nino event is usually followed by a wet year and the La Nina phenomenon reduces the precipitation in the region.

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Published

2023-04-27

How to Cite

1.
Sadi T, Arzjani Z, Zadeh MM. Studying the Effects of El Nino Southern Oscillation on Precipitation based on Southern Oscillation Index: Case Study for the Region of Shahr-e-Kord in Iran. IJBSM [Internet]. 2023 Apr. 27 [cited 2025 Sep. 21];2(Dec, 4):416-20. Available from: https://www.ojs.pphouse.org/index.php/IJBSM/article/view/187

Issue

Vol. 2 No. Dec, 4 (2011)

Section

Articles

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