The present study analyses trends of mean minimum and mean maximum temperature in a Himalayan state of India, i.e., Uttarakhand based on the station data (n=5) collected from the India Meteorological Department. The data range of the collected data range up to a century. Mann-Kendal and Sen’s slope estimator were applied to estimate the statistical significance and magnitude of the trend of temperature In the study area. The study reveals that mean maximum temperature trends in the region are highest for the winter season (up to 0.1°/decade), followed by post-monsoon (up to 0.09°/decade), monsoon( up to 0.06°/decade), and pre-monsoon season (up to 0.04°/decade). The overall annual trend of mean maximum temperature is observed up to 0.08°/decade. The mean minimum temperature trends are relatively mixed, where both negative (Mukhem) and positive trends (other observatories) have been observed. More pronounced trends of mean minimum trends are observed in the lower plains (Roorkee). Overall, an elevation dependence of temperature trend has been observed in the study region. The results might be useful for academic and scientific communities and also for the management authorities involved in the climate change impact assessments.
Mots clés : Climate change|Himalayas
A104322SM