Research Theme · 2025-05-28

Extreme-Event Teleconnections and Monsoon Rainfall Prediction

This theme connects mechanisms of synchronized extreme heatwaves with long-lead tropical monsoon rainfall prediction, emphasizing land-surface drivers, teleconnections, and predictability.

Extreme events and monsoon rainfall have direct consequences for agriculture, water resources, energy systems, and public safety. Studying them requires combining local physical mechanisms, cross-regional teleconnections, and long-lead predictability.

The group focuses on two linked questions: How can land-surface anomalies trigger or strengthen synchronized remote extremes? Can complex-system and climate-network methods turn precursor signals into long-lead rainfall forecasts?

Representative Work

Tibetan Plateau soil moisture and synchronized heatwaves

Dry soil moisture on the Tibetan plateau drives synchronous extreme heatwaves in Europe and East Asia uses extreme-heatwave event-day synchronization and climate networks to reveal close links between extremely dry soil moisture in key Tibetan Plateau regions and synchronized heatwaves in Europe and East Asia.

Long-lead tropical monsoon rainfall prediction

Tropical monsoon rainfall can be predicted with lead times up to 10 months constructs annual climate networks from 2 m air temperature and uses dynamic learning windows to forecast rainy-season total precipitation in four tropical monsoon regions; lead times reach 4 months for SEA, CI, and HI, and 10 months for EAR.

Why It Matters

This theme connects mechanism discovery with seasonal prediction: identifying how land processes, circulation, and teleconnections organize extremes, and exploring how those precursor signals can support operationally useful prediction.