Trend detection in pm 10 and meteorological parameters using mann kendall test –a case study Chennai city

The impact of climate change on annual air temperature and precipitation has received a great deal of attention by scholars worldwide. Many studies have been conducted to illustrate that changes in annual temperature and precipitation are becoming evident on a global scale. This study focuses on detecting trends in annual temperature and precipitation and Aerosols (PM10)for Chennai city For this study, the widely used modified Mann-Kendall test was run at 5% significance level on time series data for the yearr2014. The resultant Mann Kendall test statistic (S) indicates how strong the trend in temperature, PM10 and precipitation is and whether it is increasing or decreasing. There is a increasing trend in the rainfall and PM10 measured at T. Nagar, whereas decreasing trend in the temperature and PM10 of Kilpauk regions of Chennai.