I am devoted to understanding climate change and the underlying physics. Climate change can be caused by both external forcing that alters the Earth’s radiative balance (e.g., anthropogenic activity, volcanic eruption and changes in solar irradiance) and by processes internal to the climate system that do not affect the balance (i.e., atmospheric, oceanic, cryospheric and land processes as well as their interactions). A thorough investigation of both externally forced and internally generated components is required for a comprehensive understanding of climate change. In the past, I have conducted research on both components by using statistical analysis, numerical simulations and analytical models; in the future, I will continue this path by focusing on their interactions and the predictability of the internal component on regional to global and seasonal to multi-decadal scales.
At Princeton University/GFDL, my main focus has been on the detection and attribution of decadal-scale hydroclimate changes on both regional and global scales. I am currently working to quantify the contribution of tropical climate variability (e.g., ENSO) to extratropical climate variability and predictability.