Guillaume Mauger , Ph.D.

State Climatologist Washington State Climate Office
Research Scientist UW Climate Impacts Group

Guillaume works with Northwest communities, decision-makers and others to develop, interpret and apply climate science that is relevant to their interests.

Areas of Expertise

Climate Science Downscaling Water Supply Flooding Sea Level Rise

Bio

Guillaume Mauger is a research scientist at the UW Climate Impacts Group. He is also the Washington State Climatologist. Specializing in Climate Science, Guillaume works closely with communities across the Northwest to facilitate access to relevant climate science, grow the region’s capacity to use climate information and engage in collaborative user-driven climate research.

Research Interests

  • Methods for modeling and evaluating climate change impacts at local scales (“downscaling”)
  • Hydrologic impacts of climate change (stormwater, water supply, etc.) 
  • Climate change impacts and adaptation planning for resilient floodplain management (both coastal and riverine)

Select Current Projects

Recent Publications

Mauger, G.S., J. S. Won, M. Rogers, C. Penn and E. Marbet. 2023. Future Sea Level, Streamflow and Stream Temperature on Salmon-Bearing Streams of the Squaxin Island Tribe. Report prepared for the Squaxin Island Tribe. Climate Impacts Group, University of Washington. https://cig.uw.edu/projects/future-sea-level-streamflow-and-stream-temperature-on-salmon-bearing-streams-of-the-squaxin-island-tribe/

Mauger, G.S., M. Liu, J.C. Adam, J. Won, G. Wilhere, D. Dulan, J. Atha, L. Helbrecht and T. Quinn. 2021. New Culvert Projections for Washington State: Improved Modeling, Probabilistic Projections, and an Updated Web Tool. Report prepared for the Northwest Climate Adaptation Science Center. Climate Impacts Group, University of Washington. https://doi.org/10.6069/31T3-RE28

Roop, H.A., G.S. Mauger, H. Morgan, A.K. Snover and M. Krosby. 2020. Shifting Snowlines and Shorelines: The Intergovernmental Panel on Climate Change’s Special Report on the Ocean and Cryosphere and Implications for Washington State. Briefing paper prepared by the Climate Impacts Group, University of Washington. https://cig.uw.edu/projects/shifting-snowlines-and-shorelines/

Lorente-Plazas, R., T.P. Mitchell, G.S. Mauger and E.P. Salathé, Jr. (2018). Atmospheric rivers induce local extreme precipitation in the U.S. Pacific Northwest through interactions with the orography. Journal of Hydrometeorology. 19(9), 1429-1446. https://doi.org/10.1175/JHM-D-17-0246.1

Goldenson, N., G.S. Mauger, L.R. Leung, C.M. Bitz and A. Rhines. 2018. Effects of Ensemble Configuration on Estimates of Regional Climate Uncertainties. Geophysical Research Letters, 45(2), 926-934. https://doi.org/10.1002/2017GL076297 

Mauger, G.S., J.H. Casola, H.A. Morgan, R.L. Strauch, B. Jones, B. Curry, T.M. Busch Isaksen, L. Whitely Binder, M.B. Krosby and A.K. Snover. 2015. State of Knowledge: Climate Change in Puget Sound. Report prepared for the Puget Sound Partnership and the National Oceanic and Atmospheric Administration. Climate Impacts Group, University of Washington, Seattle. cig.uw.edu/projects/climate-change-in-puget-sound-state-of-knowledge/ 

Mauger, G.S., K.A. Bumbaco, G.J. Hakim and P.W. Mote. 2013. Optimal design of a climatological network: beyond practical considerations. Geoscientific Instrumentation, Methods and Data Systems. 2(2): 199-212. https://doi.org/10.5194/gi-2-199-2013