Trends in Rainfall and Temperature Patterns over North East India

Abstract

See, stats, and : http : / / www . researchgate . net / publication / 268209029 Trends North ARTICLE DOWNLOADS 34 VIEWS 50 2 , INCLUDING : Markand Indian 33 SEE Available : Markand Retrieved : 24 Abstract The present study examines long - term changes and short - term fluctuations in Indian Summer Monsoon (ISM) rainfall and temperature over North East India (NEI) in Eastern Himalayan region . Rainfall data for period 1871 – 2012 and temperature data for the period 1901 – 2007 were used in this study . Long - term behavior was assessed using parametric linear trend model as well as with the non - parametric Mann - Kendall rank statistic . The short - term fluctuations were studied by applying Cramer ' s t - test for the 11 - year running means . The striking features are the varied epochs of above - and below - normal ISM rainfall at different spatial scales and temperature in various seasons in this region . The detailed analysis of data over North East India indicated (i) steep decreasing trend in ISM rainfall ; (ii) increasing behaviour of maximum temperature ; and (iii) decade of 1960 – 70 as a time point of change .