Coherent response of the Indian Monsoon Rainfall to Atlantic Multi-decadal Variability over the last 2000 years.

ABSTRACT: Indian Summer Monsoon (ISM) rainfall has a direct effect on the livelihoods of two billion people in the Indian-subcontinent. Yet, our understanding of the drivers of multi-decadal variability of the ISM is far from being complete. In this context, large-scale forcing of ISM rainfall variability with multi-decadal resolution over the last two millennia is investigated using new records of sea surface salinity (δ¹⁸Ow) and sea surface temperatures (SSTs) from the Bay of Bengal (BoB). Higher δ¹⁸Ow values during the Dark Age Cold Period (1550 to 1250 years BP) and the Little Ice Age (700 to 200 years BP) are suggestive of reduced ISM rainfall, whereas lower δ¹⁸Ow values during the Medieval Warm Period (1200 to 800 years BP) and the major portion of the Roman Wa

SUBMITTER: Naidu PD 

PROVIDER: S-EPMC6987308 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature