Annual and Seasonal Trend Analysis of Rainfall and Temperature Pattern in Arpa Catchment, Chhattisgarh

Author: Shruti Verma*, Dhiraj Khalkho, M.P. Tripathi and Amit Raj

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Abstract

Changes in precipitation occur due to global or local climate changes. Climate change has a major impact on precipitation patterns. Changes in rainfall as a result of global warming will have an impact on the hydrological cycle, stream flow patterns, and demand (especially in agriculture). This study examines the trends in seasonal and annual rainfall, minimum temperature and maximum temperature (Tmin and Tmax) using the Mann–Kendall (MK) test and Sen’s slope (SS) method. Four rainfall and temperature stations located inside and near the study area were taken. Trend analysis was conceded out on seasonal and annual basis considering four seasons i.e. winter, summer, south west monsoon (SWM) and north east monsoon (NEM). Trend test for precipitation showed that increasing trend for all four stations (Ghatora, Andhiyarkore, Jondhra and Pendra) and for all season except Ghatora station in south west monsoon (SWM) showed decreasing trend. The annual trend of precipitation also shows inc

Keywords

Rainfall, Maximum temperature, Minimum temperature, Mann-Kendall test, Sen’s Slope Estimates and Trend Analysis.

Conclusion

In the Mann-Kendall non-parametric test, the Zc statistics shown the trend of the series for 35 years (1985-2020) for seasonally and annually basis. Magnitude of seasonal precipitation data estimated in seasonally time steps the peak value for the slope of precipitation (8.02 mm/year) trend line was found in Andhiyarkore station in south west monsoon (SWM) and lowest value for the slope of rainfall (-10.45 mm/year) trend line was found in SWM in Ghatora station. In annual time steps the peak value for the slope of precipitation (8.19 mm/year) trend line was found in Ghatora station. Magnitude of minimum temperature data estimated in annually time steps the highest value for the slope of temperature (0.049°C/year) trend line was found in Ghatora station and lowermost value for the slope of temperature (-0.019°C/year) trend line was found in Pendra station. Magnitude of maximum temperature data estimated in annually time steps the lowermost value for the slope of temperature (-0.075°C

References

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How to cite this article

Shruti Verma, Dhiraj Khalkho, M.P. Tripathi and Amit Raj (2022) Annual and Seasonal Trend Analysis of Rainfall and Temperature Pattern in Arpa Catchment, Chhattisgarh. Biological Forum – An International Journal, 14(1): 632-636.