Steven Hostetler, Ph.D.




U.S. Geological Survey  Telephone: (541) 737-8928

College of Earth, Oceanic and Atmospheric Sciences  Internet:

Oregon State University                                              

Corvallis, Oregon 97331                         


Ph.D  Geography (climate change, numerical modeling), University of Oregon, 12/87

M.S.  Mathematics (numerical analysis), University of Oregon, 8/84

B.S.  Civil Engineering (hydrology), Ohio State University, 6/73


Research Hydrologist GS-15 (full Professor equivalent), U.S. Geological Survey, Water Resources Division since December, 1989; Project Chief of Lake-Atmosphere Interactions Project, 1992-present; Visiting Scientist, National Center for Atmospheric Research, Boulder, Colorado 1988-1995, Affiliate Scientist, National Center for Atmospheric Research, 1995-1999, Courtesy Appointment, Department of Geosciences , Oregon State University, 1994-present, NSF Review Panel for Earth System History, 1997-1999; Member NCAR Scientific Computing Division Advisory Panel, 1998-2000; Member Scientific Advisory Council, USGS Global Change Research and Development Program, 2011-, Research Advisor, National Research Program, 2012- 

Graduate Student Committees

Doctoral: Eric Small (1999), University of California Santa Cruz (modeling the hydrology and climatic effects of the lowering of the Aral Sea), Adam Light (1999), University of Oregon, (automated quantification and statistical measures of spatial coherency in atmospheric fields),Heather Benway (2005), Oregon State University (salinity variations and climate in the Panama Basin),  Sam Van Laningham (2005) Oregon State University (identifying sediment provenance for western Oregon rivers, relating core data to past climate variations), Faron Anslow(2006), Oregon State University (modeling glacier mass balance and dynamics, coupling glacier models with high‑resolution climate models),  Marlos Bakker (2007), Oregon State University (International flood policy),  Jeremy Shakun (2010), Oregon State University (Speleothem dating, analysis of mulit-proxy terrestrial and marine records), Shaun Marcott, (2011) Oregon State University (cosmogenic moraine dating/glacier modeling, multi-proxy data analysis), Jay Alder (climate modeling, climate analysis, visualization), Andrea Allan (current, atmospheric circulation, regional climate modeling), Jeremy Hoffman (current, cosmogenic dating of Fennoscandian Ice sheet, climate and ice sheet modeling), Kathleen Miles (current, sensitivity of hydrologic systems to climate change and disturbance)  

Masters: Ann Morey (2001), Oregon State University (reconstructing paleo‑sea surface temperatures), Tim Perry (2007), Oregon State University (streamflow responses to clear cutting and selective cutting), Dan Bellgam (present), Oregon State University (international responses to climate-driven changes in water resources), Cody Beadlow (glacier monitoring and modeling, now pursuing PhD at Univ. of Fairbanks).



Hostetler, S. W. and P.J. Bartlein (1990).   Modeling climatically determined lake evaporation with application to simulating lake‑level variations of Harney‑Malheur Lake, Oregon. Water Resources Research 26(10):2603-2612.

Hostetler, S. W. and L. V. Benson (1990).  Paleoclimatic implications of the high stand of Lake Lahontan derived from models of evaporation and lake level.  Climate Dynamics4:207‑217.

Hostetler, S. W. (1991). Simulation of lake ice and its effect on the late‑Pleistocene evaporation rate of Lake Lahontan.  Climate Dynamics 6:43-48.

Hostetler, S. W. (1991). Analysis and modeling of long‑term water temperature on the Steamboat Creek basin, Oregon: Implications for land use and fish habitat.  Water Resources Bulletin 27(4):637-647.

Bartlein, P. J., T. Webb III, and S. W. Hostetler (1992).   Climatology.  In R.L Hunter and J. Mann, eds, Determining Probabilities of Geologic Processes and Events, Monographs in Mathematical Geology, Oxford University Press, Oxford, pp. 99-122.

Benson L. V., D. M. Currey, Y. Lao. and S. W. Hostetler (1992).   Lake‑size variations in the Lahontan and Bonneville basins between 13,000 and 9,000 14C yr B.P.Paleogeography, Paleoclimatology, and Paleoecology, 95, 19-32.

Hostetler, S. W. and F. Giorgi (1992).  Use of a regional atmospheric model to simulate lake‑atmosphere feedbacks associated with Pleistocene Lakes Lahontan and Bonneville.Climate Dynamics 7, 39‑44.

Bates, G. T., F. Giorgi, and S. W. Hostetler (1993).  Toward the simulation of the effects of the Great Lakes on regional climate.  Monthly Weather Review 121(5):1373‑1387.

Hostetler, S. W., G. T. Bates, and F. Giorgi (1993).  Coupling of a lake model with a regional climate model.  Journal of Geophysical Research98(D3):5045-5058.

Hostetler, S. W. and F. Giorgi (1993). Use of high‑resolution climate model data in landscape‑scale hydrologic models: A demonstration. Water Resources Research29(6):1685-1695.

Giorgi, F., S. W. Hostetler, and C. Shields-Brodeur, 1994, Analysis of the surface hydrology in a regional climate model.  Quarterly Journal of the Royal Meteorological Society,120:161-183.

Hostetler, S. W., F. Giorgi, G. T. Bates, and P. J. Bartlein (1994).  Lake‑atmosphere feedbacks associated with Paleolakes Bonneville and Lahontan.  Science263:665‑668.

Hostetler, S. W. and L. V. Benson (1994).  Behavior of the stable isotopes of oxygen and hydrogen in the Truckee River‑Pyramid Lake surface‑water system, Part 2: A predictive model of d18O and d2H in Pyramid Lake: Limnology and Oceanography39:356-364.

Hostetler, S. W. and F. Giorgi (1994).  Effects of 2XCO2 climate on two large lake systems: Pyramid Lake, Nevada, and Yellowstone Lake, Wyoming. Global and Planetary Change10:43-34. (Invited)

Vassiljev, J.,  S. P. Harrison, S. W. Hostetler, and P. J. Bartlein (1994).  Modelling the thermal behavior of three Estonian Lakes: Karujärv, Viljandi, and Kirjaku. J. Hydrology, 163:107-123.

Hostetler, S. W. (1994).  Hydrologic and atmospheric models-- the (continuing) problem of discordant scales.  Guest editorial, Climatic Change27:345-350. (Invited)

Hostetler, S. W. (1995).  Hydrologic and thermal response of lakes to climate.  In, A. Lerman, D. M. Imboden, and J. R. Gat, eds., Lakes II: Chemical and Physical Processes in Lakes, Springer‑Verlag, 63-82.

Bates, G. T., S. W. Hostetler, F. Giorgi (1995).  Two-year simulation of the Great Lakes region with a coupled modeling system. Monthly Weather Review123:1505‑1522. 

TEMPO Members (Kutzbach, J.E., P.J. Bartlein, J.A. Foley, S.P. Harrison, S.W. Hostetler, Z. Liu, I.C. Prentice, and T.W. Webb, III) (1996).  Potential role of vegetation feedback in the climate sensitivity of high-latitude regions: A case study at 6000 years B.P. Global Biogeochemical Cycles10:727-736.  (Invited)

Grimm, N.B., A. Chacon, C. N. Dahm, S. W. Hostetler,  O. T. Lind,  P. L. Starkweather, and W. W.Wurtsbaugh, (1997).  Sensitivity of aquatic ecosystems to climatic and anthropogenic changes: the Basin and Range, American Southwest, and Mexico. Hydrological Processes11:1023-1042.

Hauer, F. R., J. S. Baron,  D. H. Campbell,  K. D. Fausch,  S. W. Hostetler,  G. H. Leavesley,  P. R. Leavitt,  D. M. McKnight, and J. A. Stanford (1997).  Assessment of climate change and freshwater ecosystems of the Rocky Mountains USA and Canada. Hydrological Processes11:903-921.

Hostetler, S. W. (1997).  Paleoclimatology near to the edge of an ice sheet.  Nature385:393-394. (Invited)

Hostetler, S.W., and P.U. Clark (1997).  Climatic controls of western U. S. alpine glaciers at the last glacial maximum.  Quaternary Science Reviews16:505-511.

Ortiz, J., A. C. Mix, S. W. Hostetler, and M. Kashgarian (1997).  The California Current of the last glacial maximum, Paleoceanography13:161-176. 

Hostetler, S.W. and P.J. Bartlein (1999).  Response of regional climate and surface processes in Western North America to a canonical Heinrich event.  In, P.U. Clark, R.S. Webb, and L.D. Keigwin, Eds., American Geophysical Union Geophysical Monograph Series 112, Mechanisms of Global Climate Changes at Millennial Time Scales, pp. 313‑327. (Invited)

Hostetler, S.W. and A.C. Mix (1999).  Ice age cooling of the tropics re‑assessed.  Nature399:673‑676.

Hostetler, S.W., P.U. Clark,  P. J. Bartlein,  A.C. Mix, and N.G. Pisias (1999). Atmospheric transmission of North Atlantic Heinrich Events.   J. Geophysical Research104(D4):3947‑3952.

Hostetler, S.W. and E.E. Small (1999).  Response of North American lakes to simulated climate change.  Special Issue for the US Global Change Research Program National Assessment of Water Resources, J. American Water Resources Association 35(6):1625‑1637. (Invited)

Mix, A.C., A.E. Morey,  N.G. Pisias, and S.W. Hostetler (1999),  Foramininiferal faunal estimates of paleotemperature: Circumventing the no‑analog problem yields cool ice age tropics. Paleoceanography 14(3):350‑359.

Small, E.E., L.C. Sloan, S. W. Hostetler, and F.Giorgi (1999).   Simulating the water balance of the Aral Sea with a coupled climate‑lake model.   J. Geophysical Research104(D6):6583‑6602.

Hostetler, S.W., P.J. Bartlein , P.U. Clark,  E.E. Small,  and A.E. Solomon (2000),  Simulated interactions between Lake Agassiz and the Laurentide Ice Sheet 11,000 years ago. Nature 405:334-337.

Hostetler, S.W and P.U. Clark (2000), Tropical climate at the Last Glacial Maximum inferred from glacier mass-balance modeling.  Science 290:1747-1750.

Clark, P. U., S. Marshall, G. Clarke, S. Hostetler, J. Licciardi, J. Teller (2001), Freshwater forcing of abrupt climate change during the last glaciation, Science 293:283-287.

Bartlein, P.J. and S. W. Hostetler (2004), Modeling paleoclimates, in, A.R. Gillespie, S.C. Porter, and B.F. Atwater, eds, The Quaternary Period in the United States, Developments in Quaternary Science, pp. 565-584. (Invited)

Marshal, S., D. Pollard, S. Hostetler, and P. Clark (2004), Coupling ice‑sheet and climate models for simulation of former ice sheets, in, A.R. Gillespie, S.C. Porter, and B.F. Atwater, eds, The Quaternary Period in the United States, Developments in Quaternary Science, pp.105-126.  (Invited)

Pisias, N.G., L. Heusser, C. Huesser, S. Hostetler, A. Mix, and M. Weber, M., (2006). Radiolaria and pollen records from 0 to 50ka at ODP Site 1233: Continental and marine climate records from the Southeast Pacific, Quaternary Science Reviews, 25:455-473.

Hostetler, S.W., N.G. Pisias, and A.C. Mix (2006). Sensitivity of Last Glacial climate to uncertainties in tropical and subtropical ocean temperatures, Quaternary Science Reviews, 25:1168-1185.

Schmittner, A., E.D. Galbraith, S. W. Hostetler, T.F. Pedersen, and R. Zhong (2007).  Large fluctuations of dissolved oxygen in the Indian and Pacific oceans during Dansgaard-Oeschger oscillations caused by variations of North Atlantic Deep Water subduction, Paleoceanography 22, PA3207, doi:10.1029/2006PA001384

Clark, PU, SW Hostetler, NG Pisias, A Schittner, KJ Meissner (2007): Mechanisms for an ~7-kyr Climate and Sea-Level Oscillation During Marine Isotope Stage 3, In A Schmittner, J Chiamg, S Hemmings, Eds., Ocean Circulation: Mechanisms and Impacts, Geophysical Monograph Series, V. 173, American Geophysical Union, Washington DC.

Anslow, F., S. Hostetler, P. Clark, and W. Bidlake (2008): Assessing the sensitivity of a distributed glacier surface mass balance model to variations in physical parameters, J. of Geophysical Research 113:F02019.  doi:10.1029/2007JF000850. 

Bartlein, PJ, SW Hostetler, SL Shafer, JO Holman, and AM Solomon (2008).  Temporal and spatial structure in a daily wildfire-start data set from the western United States (1986-96), International Journal of Wildland Fire, 17:8-17. (Invited). 

Hostetler, S.W., (2009), Use of Models and Observations to Assess Trends in the 1950-2005 Water Balance and Climate of Upper Klamath Lake, Oregon, Water Resources Research45, W12409, doi:10.1029/2008WR007295.

Carlson, A.E., Clark, P.U., and Hostetler, S.W., 2009, Comment: Radiocarbon deglaciation chronology of the Thunder Bay, Ontario area and implications for ice sheet retreat patterns, Quaternary Science Reviews, v. 28, p. 2546-2547. 

Clark, PU, AS Dyke, JD. Shakun, AE Carlson, J Clark, B Wohlfarth, JX Mitrovica, SW Hostetler, AM McCabe (2009) The Last Glacial Maximum, Science, 325, 710, DOI: 10.1126/science.1172873. 

Ersek, V., Hostetler, S.W., Cheng, H., Clark, P.U., Anslow, F.S., Mix, A.C., and Edwards, R.L., 2009, Environmental influences on speleothem growth in southwestern Oregon during the last 380,000 years: Earth and Planetary Science Letters/, v. 279, p. 316-325.      

Alder, J.R., Hostetler, S.W. and Pollard, D., 2010,  Evaluation of a present-day climate simulation with a new atmosphere-ocean model, GENMOM, Geoscience Model Development, v. 3, p. 1697-1735.  doi:10.5194/gmdd-3-1697-2010. 

Anslow, F.S., Clark, P.U., Kurz, M.D., and Hostetler, S.W., 2010, Geochronology and paleoclimatic implications of the last deglaciation of the Mauna Kea Ice Cap, Hawaii: Earth and Planetary Science Letters, v. 297, no. 1-2, p. 234-248.

Weber, M.E., Clark, P.U., Ricken,W., Mitrovica, J.X., Hostetler, S.W.,Kuhn, G. 2011. Interhemispheric Ice-Sheet Synchronicity During the Last Glacial Maximum Science 334, 1265 (2011); DOI: 10.1126/science.1209299.

Hostetler, S. W., 1993, Modeling the late Pleistocene paleohydrology of the Great Basin, Proceedings of the U.S. Geological Survey Global Change Forum, Herndon, Virginia, March 18-20, 1991, U.S. Geological Survey Circular 1086, p. 90.

Hostetler, S. W., G. T. Bates, and F. Giorgi, 1993, Coupling of a lake model with a high resolution climate model for climate¬ change studies, in, Proceedings of the Workshop on the Effects of Global Climate Change on Hydrology and Water Resources at the Catchment Scale,  Japan U.S. Committee on Hydrology, Water Resources and Global Climate Change, Public Works Research Institute, Tsukuba, Japan, p. 161-177.

Hostetler, S. W. and L. V. Benson, 1993, Meteorological and water temperature data for Pyramid Lake Nevada 1987-89, U.S. Geological Survey Open File Report 92  W 309, 15 pp.

Hostetler, S. W. and J. Varley, 1993, Preliminary results of simulating the thermal regime of Yellowstone Lake: Park Science,13(1):16.

Hostetler, S. W., 1997.  Modeling thermal regime and evaporation of Williams Lake, Minnesota, in, T. C. Winter and D. L. Rosenberry, eds., Interdisciplinary Research Study of Williams and Shingabee Lakes, Minnesota, U. S. Geological Water Resources Investigations Report 96-4215, p. 25-30.

Thompson, R.S., S.W. Hostetler, P.J. Bartlein, K.H. Anderson (1998).  A strategy for assessing potential future changes in climate, hydrology, and vegetation in the Western United States, U.S. Geological Survey Circular 1153, 20 pp.

Haak, A.L., Williams, J.E., Isaak, D., Todd, A., Muhlfeld, C., Kershner, J.L., Gresswell, R., Hostetler, S., and Neville, H.M., 2010, The potential influence of changing climate on the persistence of salmonids of the inland west: U.S. Geological Survey Open-File Report 2010–1236, 74 p.

Hostetler, S.W., P.J. Bartlein, and J.O. Holman (2006), Atlas of climatic controls of wildfire in the Western United States, US Geological Survey Scientific Investigations Report 2006-5139.  (

Hostetler, S.W., Alder, J.R. and Allan, A.M., 2011, Dynamically downscaled climate simulations over North America: Methods, evaluation and supporting documentation for users: U.S. Geological Survey Open-File Report 2011-1238, 64 p. (link)