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Temperature trends of Chennai City, India


Chennai is the fourth largest metropolitan city in India, and it is one of India's chief industrial and economic growth centers. The temperature change in Chennai is studied in this research by analyzing the mean maximum temperature (MMaxT), mean minimum temperature (MMinT), and mean annual temperature (MAT) from 1951 to 2010. Data are analyzed in three parts by running linear regression and by taking anomalies of all time periods: (a) the whole period from 1951 to 2010; (b) phase 1, 1951–1980; and (c) phase 2, 1981–2010. The trends have been evaluated by Student's t statistics and supported by Mann Kendall rank statistics. The observed change in temperature is positive, which has been clear increasing trends in MMaxT, MMinT, and MAT. MAT has increased 1.3°C since the last 60 years. MMaxT has increased up to 1.6°C, in which the second phase accounts for 75 % of the total change during the last 60 years. MMinT over Chennai has increased 1.0°C. There is a high rise in temperature during winter season.

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The authors gratefully acknowledge the Department of Science and Technology (DST), Government of India, for providing the financial support for this research work under DST-PURSE scheme (proceeding no. 11001/PD2/2008).

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Correspondence to Anushiya Jeganathan.

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Jeganathan, A., Andimuthu, R. Temperature trends of Chennai City, India. Theor Appl Climatol 111, 417–425 (2013).

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  • Minimum Temperature
  • India Meteorological Department
  • Mean Annual Temperature
  • Annual Minimum Temperature
  • IPCC Fourth Assessment Report