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Alan Hamlet

Alan Hamlet


Phone: 574-631-7409


Ph.D, University of Washington, 2006

M.S., Civil and Environmental Engineering, University of Washington, 1996

B.S., Mechanical Engineering, University of Washington, 1992

B.S., Mathematics, University of Rochester, 1981


Academic Appointments

Climate Impacts Group, University of Washington, 1996-2012

Research Assistant/Associate Professor, CEE, University of Washington, 2007-2012

Selected Publications

Adam, J.C., A. F. Hamlet and D. P. Lettenmaier, 2009: Implications of global climate change for snowmelt hydrology in the 21st century, Hydrological Processes, 23(7), 962-972.

Crozier, L., R.W. Zabel, A.F. Hamlet, 2008: Predicting differential effects of climate change at the population level with life-cycle models of spring Chinook salmon,  Global Change Biology, 14 (2): 236-249

Elsner, M.M., L. Cuo, N. Voisin, J.S. Deems, A.F. Hamlet, J.A. Vano, K.E.B. Mickelson, S.Y. Lee, D.P. Lettenmaier, 2010: Implications of 21st century climate change for the hydrology of Washington State, Climatic Change, doi: 10.1007/s10584-010-9855-0

Gamble, J.L., John Furlow, Amy K. Snover, Alan F. Hamlet, Barbara J. Morehouse, Holly Hartmann, and Thomas Pagano, 2002: Assessing the Impact of Climate Variability and Change on Regional Water Resources: The Implications for Stakeholders, in Water: Science, Policy, and Management, R. Lawford et al., editors, AGU Press Monograph

Hamlet, A.F., Lettenmaier, D.P., 1999a: Effects of Climate Change on Hydrology and Water Resources in the Columbia River Basin, J. of the American Water Resources Association, 35 (6): 1597-1623

Hamlet, A.F., Lettenmaier, D.P., 1999b: Columbia River Streamflow Forecasting Based on ENSO and PDO Climate Signals, ASCE J. of Water Res. Planning and Mgmt., 125 (6): 333-341

Hamlet, A.F., Huppert, D., Lettenmaier, D.P., 2002: Economic Value of Long-Lead Streamflow Forecasts for Columbia River Hydropower, ASCE J. of Water Res. Planning and Mgmt, 128 (2): 91-101

Hamlet, A.F., 2003: The Role of Transboundary Agreements in the Columbia River Basin: An Integrated Assessment in the Context of Historic Development, Climate, and Evolving Water Policy, Climate and Water:  Transboundary Challenges in the Americas, Eds. H. Diaz and B. Morehouse, Kluwer Press, Dordrecht/Boston/London

Hamlet, A.F., Lettenmaier, D.P., 2005: Producing temporally consistent daily precipitation and temperature fields for the continental U.S., J. of Hydrometeorology, 6(3): 330-336

Hamlet, A.F., Mote, P.W, Clark, M.P., Lettenmaier, D.P., 2005: Effects of temperature and precipitation variability on snowpack trends in the western U.S., J. of Climate, 18 (21): 4545-4561

Hamlet, A.F., Mote, P.W., Clark, M.P., Lettenmaier, D.P., 2007: 20th Century Trends in Runoff, Evapotranspiration, and Soil Moisture in the Western U.S., J. Climate, 20 (8): 1468-1486

Hamlet, A.F., 2011: Assessing water resources adaptive capacity to climate change impacts in the Pacific Northwest region of North America, HESS, 15: 1427-1443, doi:10.5194/hess-15-1427-2011

Hamlet, A.F., S.Y. Lee, K.E.B. Mickelson, M.M. Elsner, 2010: Effects of projected climate change on energy supply and demand in the Pacific Northwest and Washington State, Climatic Change, doi: 10.1007/s10584-010-9857-y

Lee, S.Y., A.F. Hamlet, C.J. Fitzgerald, S.J. Burges, 2011: Daily time step refinement of optimized flood control rule curves for a global warming scenario, ASCE J. Water Resources Planning and Management (accepted).

Lee, S.Y., A.F. Hamlet, S.J. Burges, 2011: Development of flood rule curves for the Columbia River Basin conditioned on ENSO classification, JAWRA (in press)

Lee, S-Y., A. F. Hamlet, C. J. Fitzgerald, and S. J. Burges, 2009: Optimized Flood Control in the Columbia River Basin for a Global Warming Scenario, ASCE J. Water Resources Planning and Management, DOI 10.1061/(ASCE)0733-9496(2009)135:6(440), 135(6) 440-450

Leung, L.R., Hamlet, A.F., Lettenmaier, D.P., Kumar, A., 1999: Simulations of the ENSO Hydroclimate Signals in the Pacific Northwest Columbia River Basin, BAMS, 80 (11): 2313-2329

Lutz E.R., A.F. Hamlet, J.S. Littell, 2012: Estimating seasonal uncertainties in paleo-reconstructed hydrologic variables, with applications to climate change assessments (in press).

Mantua, N., I. Tohver, A.F. Hamlet, 2010: Climate change impacts on streamflow extremes and summertime stream temperature and their possible consequences for freshwater salmon habitat in Washington State, Climatic Change, doi: 10.1007/s10584-010-9845-2

Miles, E.L., Snover, A.K., Hamlet, A.F., Callahan, B., and Fluharty, D., 2000: Pacific Northwest regional assessment: The impacts of climate variability and climate change on the water resources of the Columbia River Basin. J. of the American Water Resources Association, 36 (2): 399-420

Mote, P.W., E.A. Parson, A.F. Hamlet, K.G. Ideker, W.S. Keeton, D. P.,Lettenmaier, N.J. Mantua, E.L. Miles, D.W. Peterson, D.L. Peterson, R., Slaughter, and A.K. Snover, 2003: Preparing for climatic change: the water, salmon, and forests of the Pacific Northwest, Climatic Change, 61: 45-88
Mote P.W., Hamlet A.F., Clark M.P., Lettenmaier D.P., 2005: Declining mountain snowpack in western North America, BAMS, 86 (1): 39-49

Payne, J.T., A.W. Wood, A.F. Hamlet, R.N. Palmer, and D.P. Lettenmaier, 2004: Mitigating the effects of climate change on the water resources of the Columbia River basin, Climatic Change, 62 (1-3): 233-256

Painter, T. H., J. Deems, J. Belnap, A. Hamlet, C. C. Landry, and B. Udall, 2010: Runoff loss in the Colorado River Basin driven by radiative forcing by dust in snow, Proceedings of the National Academy of Sciences, 107 (40): 17125-17130

Slaughter, R., A.F. Hamlet, D.D. Huppert, J. Hamilton, and P.W. Mote, 2010: Mandates vs. markets: Addressing over-allocation of Pacific Northwest river basins, Water Policy, 12 (2010) 305–317

Snover, A.K., Hamlet, A.F., Lettenmaier, D.P., 2003: Climate Change Scenarios for Water Planning Studies, BAMS, 84 (11): 1513-1518

Vano, J.A., N. Voisin, L. Cuo, A.F. Hamlet, M.M. Elsner, R.N. Palmer, A. Polebitski, D.P. Lettenmaier, 2010: Climate change impacts on water management in the Puget Sound Region, Washington, USA, Climatic Change, DOI: 10.1007/s10584-010-9846-1

Vano, J.A., M. Scott, N. Voisin, C.O. Stöckle, A.F. Hamlet, K.E.B. Mickelson, M.M. Elsner, D.P. Lettenmaier, 2010: Climate change impacts on water management and irrigated agriculture in the Yakima River basin, Washington, USA, Climatic Change, DOI: 10.1007/s10584-010-9856-z

Viviroli,D., D. R. Archer, W. Buytaert, H. J. Fowler, G. B. Greenwood, A. F. Hamlet, Y. Huang, G. Koboltschnig, M. I. Litaor, J. I. López-Moreno, S. Lorentz, B. Schädler, H. Schreier, K. Schwaiger, M. Vuille, R. Woods, 2011: Climate Change and Mountain Water Resources: Overview and Recommendations for Research, Management and Policy, HESS, 15, 471-504, doi:10.5194/hess-15-471-2011

Voisin, N., A. F. Hamlet, L. P. Graham, D. W. Pierce, T. P. Barnett, and D. P. Lettenmaier, 2006: The role of climate forecasts in western U.S. power planning, Journal of Applied Meteorology 45(5), 653-673

Wenger, S. J., C. H. Luce, A. F. Hamlet, D. J. Isaak, and H. M. Neville, 2010:, Macroscale hydrologic modeling of ecologically relevant flow metrics, Water Resources Research, 46, W09513, doi:10.1029/2009WR008839

Wenger S. J.,D.J. Isaak, C.H. Luce, H.M. Neville, K.D. Fausch, J.B. Dunham, D.C. Dauwalter, M.K. Young, M.M. Elsner, B.E. Rieman, A.F. Hamlet, J.E. Williams, 2011: Flow regime, temperature and biotic interactions determine winners and losers among trout species under climate change, PNAS, 108 (34): 14175-14180, doi: 10.1073/pnas.1103097108

Whitely Binder, L.C. with contributions from Jennifer Krencicki Barcelos, Derek B. Booth, Meriel Darzen, Marketa McGuire Elsner, Richard Fenske, Thomas F. Graham, Alan F. Hamlet, John Hodges-Howell, Daniel D. Huppert, J. Elizabeth Jackson, Catherine Karr, Patrick W. Keys, Jeremy S. Littell, Nathan Mantua, Jennifer Marlow, Don McKenzie, Michael Robinson-Dorn, Eric A. Rosenberg, Claudio O. Stöckle, Julie A. Vano, 2010: Preparing for Climate Change in Washington State, Climatic Change, DOI: 10.1007/s10584-010-9850-5

Summary of Activities/Interests

Dr. Hamlet’s research is focused on the integrated modeling of climate variability and change, surface water hydrology, water resources systems, the built environment, and aquatic and terrestrial ecosystems.  He has been actively involved in stakeholder education and outreach programs in the Pacific Northwest for many years, and is a leader in the development of decision support systems and sustainable climate change adaptation strategies in the water sector.  Dr. Hamlet also has a long-term interest in the impacts of climate on renewable energy systems.


Climate Adaptability and Collaboration at ND-LEEF

March 31, 2017

Zach Hanson, a civil engineering graduate student, likes the days when he leaves the lab at Notre Dame, laces up his boots and drives ten minutes north to St. Patrick’s County Park to collect his newest batch of data on groundwater recharge from his 15 well array.

Students Complete Well in Sangmélima, Cameroon

February 14, 2017

Every time Claire Nauman fills her water bottle, she thinks of Sangmélima and the connections she made there. Until December, her thoughts were bittersweet. She watched abundant, clean water fill her nalgene and thought of all the residents of Sangmélima, Cameroon and the black dots of coliform colonies that appeared on the easy gels she and her classmates ran on the community’s drinking water the previous March. But since January she has reason to celebrate while filling her water bottle, because the residents of Sangmélima now have access to clean drinking water.

Students Prepare for Engineering Trip to Cameroon

November 19, 2016

A few weeks ago, a handful of Notre Dame engineering students found themselves in Professor Alan Hamlet’s backyard pouring a concrete well pad. The well in question, however, is over six thousand miles away in Sangmelima, Cameroon.