Trend Analysis of Temperature at Sardarkrushinagar (North Gujarat), India

International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue IV, April 2018 | ISSN 2321–2705

Trend Analysis of Temperature at Sardarkrushinagar (North Gujarat), India

Sevak Das

  Department of Agricultural Meteorology, C.P. College of Agriculture, S.D. Agricultural University, Sardarkrushinagar-385506 (Gujarat), India

Abstract- Trends in long-term (1981-2017) average annual and seasonal surface air temperature at Sardarkrushinagar have been examined by using Mann-Kendall non-parametric test. The results revealed that annual average maximum and minimum temperature was found to be 33.8 and 19.2 ⁰C respectively. Annual average maximum and minimum temperature showed increasing trend, but statistically non significant. Analysis of seasonal temperature revealed that both maximum and minimum temperature exhibited increasing trend in all the seasons except monsoon where maximum temperature exhibited decreasing trend. The minimum temperature was found to be increased significantly in monsoon season at the rate of 0.01⁰C/year.

Keywords: – Maximum temperature, Minimum temperature and Trend analysis

I. INTRODUCTION

The surface air temperature is an important climatic variable that significantly affects the atmospheric phenomena operating on the earth surface. Warming of Earth environment is due to the emission of Greenhouse Gases (GHGs). As per (UNFCCC) report [15] atmospheric concentration of CO₂ has increased significantly during the last century that induced the average global temperature to increase by 0.7°C. Climate change is one of the most important worldwide issues among the scientists and researchers. One of the consequences of climate change is the alteration of rainfall patterns and increase in surface air temperature. According to Intergovernmental Panel on Climate Change (IPCC) report [8] the surface temperature of the earth has risen by 0.6 ±0.2˚C over the 20th century. Due to increasing concentration of greenhouse gases in the atmosphere, perceptible changes in temperature patterns are likely. Since the precipitation is significantly affected by temperature changes and such changes are considered an important for water resources planning, agricultural production and hydrological cycles. India is especially vulnerable to the impacts of climate change mainly due to rapid industrialization, population pressures and high rate of economic development in the country.

Read More