Inverse phase oscillations between the East Asian and Indian Ocean summer monsoons during the last 12 000 years and paleo-El Niño

摘要: The inverse phase variations between the East Asian and Indian Ocean summer monsoons on the interannual timescale result from the El Niño-Southern Oscillation activity in the tropical Pacific, which potentially provides a new way for studying paleo-ENSO. Here we reconstruct a 12000-yr proxy record for the East Asian summer monsoon from δ13C time series of the plant cellulose of the Hani peat bog in the northeastern China. The comparison of it with the peat proxy record of the Indian Ocean summer monsoon suggests that the El …