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On the frequency of the 2015 monsoon season drought in the Indo-Gangetic Plain

机译:关于印度恒河平原2015年季风季节干旱的频率

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The 2015 drought in the Indo-Gangetic Plain posed new challenges related to food and water security and affected the lives of millions. All-India monsoon rainfall in 2015 was the tenth driest year on record (1906-2015) with a deficit of 14.5%, and the Indo-Gangetic Plain witnessed a rainfall deficit of 25.8% (third rank event). Drought severity was amplified by deficits from the previous years in the Indo-Gangetic Plain and other parts of India. The Indo-Gangetic Plain faced a 2year cumulative deficit of 51%, and the drought of 2014-2015 was unprecedented with a return period of 542years. The GRACE data showed the occurrence of consecutive negative terrestrial water storage and groundwater anomalies in 2014 and 2015, mainly centered over the Indo-Gangetic Plain region. Notwithstanding uncertainty in future projections, the multiyear droughts in the same regions can pose challenges for water resources and agriculture.
机译:2015年印度恒河平原的干旱带来了与粮食和水安全有关的新挑战,影响了数百万人的生活。 2015年,全印度季风降雨是有记录以来的第十个最干旱年份(1906-2015年),赤字为14.5%,而印度-恒河平原的降雨赤字为25.8%(排名第三的事件)。过去几年,印度恒河平原和印度其他地区的赤字加剧了干旱的严重性。印度恒河平原面临2年的累计赤字51%,2014-2015年的干旱是前所未有的,恢复期为542年。 GRACE数据显示,2014年和2015年连续发生了负的地面水储量和地下水异常,主要集中在印度—恒河平原地区。尽管未来的预测存在不确定性,但同一地区多年的干旱可能对水资源和农业构成挑战。

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