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Personal profile

Personal profile

Ryan is an associate professor of atmospheric sciences at the University of Ilinois at Urbana-Champaign. Prior to joining UIUC in 2012, he worked as a research associate in Penn State's Department of Geosciences and as a NOAA Climate and Global Change postdoctoral fellow in Penn State's Department of Meteorology. Ryan graduated from Purdue University with a PhD in Earth and Atmospheric Sciences.

Ryan's research seeks to develop a deeper understanding about the physical processes influencing variability within Earth's climate system and to quantify relevant uncertainties using numerical models, observational products, and statistical methods.

His research interests include:  Climate Dynamics, Earth System Modeling, Ocean-Atmosphere Interactions, Uncertainty and Risk, Weather and Climate Extremes, Tropical Cyclones, Sea-Level Rise, and Geo-Engineering.



  • ATMS 404: Risk Analysis in the Earth Sciences
  • ATMS 491: General Circulation of the Atmosphere and Ocean
  • ATMS 491: Physical Oceanography
  • ATMS 500: Dynamic Meteorology
  • ATMS 507: Climate Dynamics
  • ATMS 571: Professional Development


  • Ph.D. Earth and Atmospheric Science, Purdue University, 2008
  • M.S. Physics, Purdue University, 2003
  • B.S. Physics, Purdue University, 2001

Office Address

3046 Natural History Building

Office Phone


Fingerprint Fingerprint is based on mining the text of the expert's scholarly documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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tropical cyclone Earth & Environmental Sciences
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oceans Physics & Astronomy
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Research Output 2006 2019

Analyzing El Niño–Southern Oscillation Predictability Using Long-Short-Term-Memory Models

Huang, A., Vega-Westhoff, B. & Sriver, R. L., Feb 1 2019, In : Earth and Space Science. 6, 2, p. 212-221 10 p.

Research output: Contribution to journalArticle

Open Access
sea surface temperature
zonal wind

Evaluating climate emulation: Fundamental impulse testing of simple climate models

Schwarber, A. K., Smith, S. J., Hartin, C. A., Aaron Vega-Westhoff, B. & Sriver, R., Jan 1 2019, In : Earth System Dynamics. 10, 4, p. 729-739 11 p.

Research output: Contribution to journalArticle

Open Access
climate modeling
black carbon

Extreme floods and droughts under future climate scenarios

Markus, M., Cai, X. & Sriver, R., Aug 1 2019, In : Water (Switzerland). 11, 8, 1720.

Research output: Contribution to journalEditorial

Open Access

Future climate emulations using quantile regressions on large ensembles

Haugen, M. A., Stein, M. L., Sriver, R. & Moyer, E. J., Feb 4 2019, In : Advances in Statistical Climatology, Meteorology and Oceanography. 5, 1, p. 37-55 19 p.

Research output: Contribution to journalArticle

Open Access
Quantile Regression
Climate models
tropical cyclone
tropical cyclone event