I'm a research scientist at the California Institute of Technology, working at both campus and Jet Propulsion Lab.

   Caltech: S. Mudd 165B;   JPL: 183-705;   Pasadena, CA 91125
   818-393-7123         yuan.wang@caltech.edu   yuan.wang@jpl.nasa.gov

About Me

Research Interests

  • Aerosol-cloud-precipitation interactions
  • Climate extreme detection and attribution
  • Physical parameterizations of cloud and aerosol
  • Climate model evaluation and development
  • Haze/Wildfires observations and modeling
  • Terrestrial carbon feedback to climate change

Research Grants

  • NSF Physical and Dynamic Meteorology Program
  • NASA MAIA Science Team
  • NASA MISR Science Team
  • Caltech President/Director Fund
  • JPL Strategic RTD

Latest Research Results


Anthropogenic aerosol emissions decreased over North America and Europe but increased over Asia since the 1970s. Our recent paper on Nature Climate Change revealed that this aerosol forcing caused jet stream winds to shift poleward over the Atlantic, decreasing planetary wave activity and partially inhibiting extreme winter weather over northern Eurasia. See EOS & Guardian.

Haze During COVID-19

Our recent paper published on Science revealed surprising haze events during the lockdown period in China and untangled complex interplay between emissions, atmospheric chemistry, especially the multi-phase chemistry, and meteorological variations. We call for a comprehensive regulatory strategy involving all emission sectors and accounting for meteorological variations for future emission control plans.

Sea Ice

Our recent paper on J. Clim. employs a fully coupled climate model to explore effects of man-made aerosols on historical and future variations of the Arctic sea ice in comparison with the GHG forcing. Aerosol-induced cloud forcing and subsequent feedback processes are found critical.


The record-breaking Camp Fire ravaged northern California for two weeks in 2018. In our recent ACP paper, we employed a comprehensive chemical transport model along with ground-based and satellite observations to characterize the PM concentrations across northern California and to investigate the pollution sensitivity predictions to key parameters of the model.

Find out our new publications. See More