SEASONAL DETECTION OF TREND AND VARIABILITY OF CLIMATIC PARAMETERS IN TARAI REGION OF UTTARAKHAND
Publication Date : 27/08/2015
This present study focuses to analyze the trend and variability seasonally of climatic parameters in tarai region of Uttarakhand. Climatic parameters data over a period of 33 years (1981−2013) has been processed to detect out seasonal trend and variability. The seasonal trends and variability detected here, to achieve the objective which has been shown with 33 years of data. Statistical analysis were carried out, application of parametric statistics tests, regression analysis, coefficient of determination R2, Q. Q. Plot or Normal plot for seasonal rainfall, trend as general movement of weather parameters over an extended period of time, weather parameters under study were not normally distributed we have calculated median, standard error of median, confidence interval for weather parameters under study and observed seasonally an increasing trend in maximum, minimum temperature, rain fall, rainy days, relative humidity 1412, decreasing trend in relative humidity 712 and wind speed, indicates an increase in maximum temperature is about 0.1934oC, minimum temperature an increase is about 0.0217oC. The relative humidity 1412, an increase is 0.0637%, relative humidity 712, decrease is − 0.0075% and wind speed shows slightly decrease is − 0.0054 Km /hour. Rainfall seasonally increases about 0.0319 mm over the region; with slightly increase in rainy days is 0 .0315 days. Quantile-Quantile trend test of monsoon season rainfall, observed skewed to right. Pearson’s correlation coefficient was applied to measure degree of relationship between seasonal mean rainy days and seasonal mean rainfall, at α = .01, level of significance (two tailed test) and observed the highly significant positive correlation between seasonal mean rainy days and seasonal mean rainfall. Fluctuations are observed in weather parameters of tarai region of Uttarakhand.
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