Fig. 3: Time series of rapid transition events for consecutive recordings from three different empirical systems.
From: Predicting critical transitions with machine learning trained on surrogates of historical data
Sedimentary archives from the Mediterranean Sea for core MS21 at depth 1022 m (A), core MS66 at depth 1630 m (B), and core 64PE406E1 at depth 1760 m (C). D Paleoclimate transitions from Deuterium content expressed as δD (in ‰ with respect to the standard mean ocean water). Time is given as years before present (BP). E Construction activity in the pre-Hispanic Pueblo societies, given as the number of trees felled per year. Vertical dashed lines indicate onsets of rapid transition events. Green lines are historical trajectories used to generate the surrogate data. Red lines are post-transition trajectories, not used. Blue lines are trajectories used for testing the early warning signals.
