Open Access Open Access  Restricted Access Subscription or Fee Access

Global Warming and the Pattern of Overall Climate Changes in Sub-Himalayan Assam Region of North-East India

Utpal Kumar De, Manoranjan APal, Kamal Bodosa

Abstract



This study examines the changing pattern of climatic factors in the Sub-Himalayan region in the Northeast during last four decades. Sub-regional variation in climatic indicators and their relation with the anthropogenic human activities like deforestation, mining and industrial developments are analysed. In addition, inter-relation among the variations in major climatic components (precipitation, temperature and humidity) are analysed through various time series methods. The analysis reveals a growing uncertainty and erratic nature of yearly and seasonal rainfall, accompanied by significant interregional variations. The monsoon rainfall has been declining significantly over the years, while the proportion of pre and post monsoon months' rainfall has been rising. Both maximum and minimum temperature has been increasing and trend rate of minimum temperature has been higher than that of maximum temperature and the rate is more during winter. There is uncertain variation in maximum-minimum difference of temperature over the years. Finally, significant cointegrated relation exists among all the climate variables.

Keywords


Global Warming, Climate Change, Regional Climate, Cointegration, Vector Autoregression, North-East India

Full Text:

PDF


Disclaimer/Regarding indexing issue:

We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information.