Long period trend analysis of precipitation and temperature of West Sikkim, India

摘要

The present study aims to analyse the long period trend of precipitation and temperature in West district of Sikkim, India. For this purpose daily precipitation and temperature data of more than 100 years were extracted from the gridded dataset provided by the India Meteorological Department, Government of India. Long-term monthly, annual and seasonal trend of precipitation and temperature have been analysed and results show declining trend of monsoonal and annual precipitation as revealed by Sen's slope estimator, whereas increasing trend of temperature since 1950s. Rate of change of mean annual temperature is 0.027 degrees C per year for the period of 1901-2014.