Detection of abrupt changes in East Asian monsoon from Chinese loess and speleothem records ...

• Main Authors: Rousseau, Denis-Didier, Bagniewski, Witold, Sun, Youbin
• Format: Dataset
• Language: English
• Published: Zenodo 2024
• Subjects: Dansgaard-Oeschger events
• Online Access: https://dx.doi.org/10.5281/zenodo.11241329; https://zenodo.org/doi/10.5281/zenodo.11241329

There is a great interest concerning recent occurrences of tipping points in the climate system and great concern about those that could occur in the near future as a result of anthropogenic forcing. A lot of attention has been devoted to the study of past Dansgaard-Oeschger events, abrupt warmings of about 12°C on a time-scale of about 50 yrs that occurred during the last glacial period. Great effort is also dedicated to understanding the Atlantic Meridionnal overturning circulation and the Amazon forest dieback, which are already entering an unstable regime leading to tipping behavior. Instead, here we focus on the study of critical transitions in the SE Asian Monsoon that have occurred in the past 3.6 Myrs by a novel combination of advanced statistical tools (KS-test, recurrence quantification analysis). The SE Asian Monsoon is characterized by variations in the grain size with the occurrence of coarse material characterizing a strong winter monsoon mechanism with grains transported from the Chinese ...