Climate change in the Zagros region

Subject Areas : Geopolitic

Masoomeh ُSofi ¹ (ندارد)
Bohloul Alijani ² (ندارد)

Received: 2014-12-06 Accepted : 2014-12-06 Published : 2012-07-22

Keywords: Climate Change, Time series analysis, Zagros region, stochastic time series, climate&#x0D, &#x0D, of Zagros region,

Abstract :

Climate change, especially global warming affect s every aspects of the environment, socialstructure, and food security. The zagros region due to its rugged nature and diverse climate isvery vulnerable to climate change such as temperature warming and rainfall decrease. In orderto unclose the signs of climate change in the Zagros region, the existing monthly rainfall, raindays, mean, low and high temperatures of 26 stations in the region were studied. Thesestations had data with different durations ranging from 17 to 55 years. The normality of thetime series were tested via lobly force, and their trend with Ljung-Box and Mankendal Tau.The degree and sign of the trend were tested by correlation coefficient.The results did not show any significant trend in the rainfall series. But the mean lowtemperature and daily temperature range showed significant trend. More than 90 percent ofthe stations showed significant increasing trend in the minimum temperature. While the dailyrange showed both increasing and decreasing trends.