|Organization:||CENTRAL UNIVERSITY OF SOUTH BIHAR|
The amount of damage brought by weather-related natural disasters has skyrocketed in recent decades. Episodes of extreme heat and cold can have serious societal, agricultural, economic, and ecological impacts across the globe, with heat being the leading weather-related killers. According to the recent IPCC report (IPCC 2012), warm days/nights and their frequency and duration have increased since 1950s and it is projected that there will be more frequent hot temperature and fewer cold temperature extremes over most of the land areas. Based on soil characterisation, rainfall, temperature and terrain, four main agro-climatic zones in Bihar have been identiﬁed, viz., Zone-I (North Alluvial Plain), Zone-II (North East Alluvial Plain), ZoneIIIA (South East Alluvial Plain) and Zone-IIIB, (South West Alluvial Plain), each with its own unique prospects. In this study, we selected zoneIIIA and B, located in the south of river Ganga and comprising of 17 districts with total geographical area of 44875.5 km2 . Rice, wheat, maize and pulses are grown in these zones as principal agricultural crops. The data used in this study are the daily maximum and minimum temperatures of recent 45 years (1969–2013) of seven meteorological stations lying in agro-climatic zone IIIA and B of south Bihar obtained from the Meteorological Centre, Patna and India Meteorological Department, Pune.
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