This project focus on the hydrological effects of explosive volcanic eruptions in the Asian monsoon region. Studies are conducted based on both tree ring-based proxy reconstruction data and model simulation from Coupled Model Intercomparison Project Phase 5 (CMIP5) and the Community Earth System Model (CESM) Large Ensemble Project. We also independently perform model simulations with the Max Planck Institute Earth System Model (MPI-ESM). This work is supported by China Scholarship Council (CSC).