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The past climate of the Indian region as seen from the modelling world

机译:从造型世界中看到的印度地区的过去的气候

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Proxy-reconstruction studies suggest several waxing and waning epochs of the Indian summer monsoon (ISM) since Last Glacial Maximum (LGM; similar or equal to 21 kyr BP). These fluctuations in the ISM are attributed to several internal and external factors. The few available past climate modelling studies for various epochs also support the results from the reconstruction studies for India. Our results, based on an analysis of five CMIP5-PMIP3 simulations for the periods of LGM, Mid-Holocene (MH; similar or equal to 6 kyr BP), last-millennium and historical period (CE 1901-1999) indicate that the ISM rainfall was lowest during the LGM, and strongest during the MH. The simulations, relative to the historical time period, suggest highest low-level convergence over the Indian region during MH and lowest during LGM. These slow changes in large-scale circulation patterns resulted in relatively highest simulated ISM rainfall during the MH, and lowest in the LGM.
机译:代理重建研究表明,自上次冰川最大值(LGM;类似或等于21kyrBP)以来,印度夏季季风(ISM)的几个打蜡和令人失望的时期。 ISM中的这些波动归因于几个内部和外部因素。 各种时代的过去的气候建模研究还有一些可用的气候建模研究也支持印度重建研究的结果。 我们的结果,基于对LGM期间的五个CMIP5-PMIP3模拟的分析,中全新世(MH;类似或等于6 KYR BP),最后千年和历史时期(CE 1901-1999)表明ISM 在LGM期间降雨量最低,并且在MH期间最强。 相对于历史时段,模拟,在LGM期间,在MH和最低最低的情况下,在印度区域提出最高的低级收敛。 大规模循环模式的这些缓慢变化导致MH期间的模拟ISM降雨相对较高,并且在LGM中最低。

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