Trend analysis of variability in weather parameters using simple linear regression (SLR) method in different water regimes in Cuddalore district of Tamil Nadu

The overall objective of this study is to analysis the impact of climate change on weather variability in different water using regimes in Cuddalore district, Tamil Nadu. Climate has a vital role on biosphere of the earth. A very slight change in the climate will lead to a major change in plant and animal life. For example, some crops will not tolerate even a minute variation in temperature. In India for the past four decades (1969-2005), surface temperature has increased by 0.3 °C or by 0.08 °C per decade. The study shows the general observation made in the minimum and maximum temperature no observable trend was noticed in the period of 15 years from 2001 - 2015 but the decline in relative humidity was quite explicit. The trend in rain fall also did not exhibit any significant increase or decrease over the years it was concluded that the duration of analysis for the weather parameters to absorb any significant climatic variation should be long enough to recognize any observable trend over the years.