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Climate Change Institute


Stephen Norton

Distinguished Maine Professor, Professor Emeritus, Climate Change Institute & School of Earth and Climate Sciences

Stephen Norton

Contact Information

Phone:
207-581-2156

Email/web:
Norton@maine.edu
Download CV

Address:
314 Bryand Global Sciences Center
University of Maine 
Orono, ME  04469-5790

Biosketch

I am interested in (1) the interaction of geologic materials (soil, bedrock) and surface and groundwater, (2) the impact of human activity on water quality, and (3) the paleolimnological record for changing processes in ecosystems. My current research focuses on:

1. The Bear Brook Watershed in Maine - a paired whole ecosystem study, with one catchment being chemically manipulated since 1989 and the other serving as a reference.

2. The biogeochemistry of humic waters, especially the controls of DOC on aluminum and iron mobility which, in turn, control the bioavailability of P.

3. The paleolimnological record of processes controlling the bioavailability of P.

Publications

Featured

  • Wilson, T. A., Amirbahman, A., Norton, S. A., and Voytek, M. A., 2010, Sedimentary phosphorus dynamics in oligotrophic lakes: J. Paleolimn., 44, 279-294.
  • Laudon, H. and Norton, S. A., 2010, Causes, drivers, and evolution of episodic acidification at the Bear Brook Watershed in Maine, USA: Environ. Monit. Asses., 171, 59-69.
  • Norton, S. A., Fernandez, I. J., Kahl, J. S., Rustad, L. E., Navrátil, T., and Almquist, H., 2010, The evolution of the science of Bear Brook Watershed in Maine, USA. Environ. Monit. Assess., 171, 3-21.

Additional Publications

  • SanClements, M. D., Fernandez, I. J., and Norton, S. A., 2010, Controls on phosphorus fractions in acidic soils of humid temperate forests: Soil Science Society of America Journal, in press.
  • Navrátil, T., Norton, S. A., Fernandez, I. J., and Nelson, S.J., 2010, Twenty-year inter-annual trends and seasonal variations in precipitation and stream water chemistry at the Bear Brook Watershed in Maine, USA.
  • Porcal. P., Amirbahman, A., Kopá?ek, J., and Norton, S. A., 2010, Experimental photochemical release of organically-bound aluminum and iron in three streams in Maine, USA: Environ. Monit. Asses.
  • Fernandez, I. J., Adams, M. B., SanClements, M. D., and Norton, S. A., 2010, Comparing decadal responses of whole-watershed manipulations at the Bear Brook and Fernow experiments. Environ. Monit. Assess.
  • Amirbahman, A., Holmes, B. C., Fernandez, I. J.,and Norton, S. A., 2010, Mobilization of metals and phosphorus from intact forest soil cores by dissolved inorganic carbon. Environ. Monit. Assess.
  • Kim, J-S., Jain, S., and Norton, S. A., 2010, Streamflow variability and hydroclimatic change at the Bear Brook Watershed in Maine (BBWM), USA: Environ. Monit. Assess.
  • Fernandez, I. J. and Norton, S. A., 2010, The Bear Brook Watershed in Maine – The Second Decade – Preface: Environ. Monit. Assess., 171, 1-2.
  • Banaitis, M. R., Fernandez, I. J., Wilson, C., Norton, S. A., and Dail, D. B., 2009 Biogeochemicl response of a northeastern forest ecosystem to biosolids amendments: Tech. Rept. Waste Management, J. Environ. Qual., 38, 792-803.
  • SanClements, M. D., Fernandez, I. J., and Norton, S. A., 2009, Soil and sediment phosphorus fractions in a forested watershed at Acadia National Park, ME, USA. For. Ecol. Manag., 258, 2318-2325.
  • Navrátil, T., Rohovec, J., Amirbahman, A., Norton, S. A., and Fernandez, I. J., 2009, Controls of natural amorphous aluminum hydroxide on sulfate and phosphate anions in sediment-solution systems: Water, Air, and Soil Poll., 201, 87-98.
  • Kopáek, J., Hejzlar, J., Kaa, J., Norton, S. A., Porcal, P., Turek, J., 2009, Trends in aluminium export from a glaciated mountain area to surface waters: Effects of soil development, atmospheric acidification, and nitrogen-saturation: J. Inorg. Biochemistry, 103, 1439-1448.
  • Porcal P., Amirbahman A., Kopáek J., Novák F., Norton S.A., 2009, Photochemical release of humic and fulvic acid-bound metals from simulated soil and streamwater. J. Environ. Mon., 10.
  • Kopáek, J,. Hejzlar, J., and Norton, S. A., 2008, Proton production by transformations of aluminium and iron in lakes: Water Research, 42, 1220-1228.
  • Goss, H. V. and Norton, S. A., 2008, Contrasting chemical response to artificial acidification of three acid-sensitive streams in Maine, USA.: Sci. Tot. Environ., 404, 245-252.
  • Norton, S. A., Coolidge, K., Amirbahman, A., Kopá?ek, J., and Bouchard, R. J., 2008, Speciation of Al, Fe, and P in recent sediment of three Maine lakes, USA: Sci. Tot. Environ., 404, 276-283.
  • Wilson, T. A., Norton, S. A., Lake, B., Amirbahman, A., 2008, Sediment geochemistry of Al, Fe, and P for two oligotrophic Maine lakes during a period of acidification and recovery: Sci. Tot. Environ., 404, 269-275.
  • McGee, C. J., Fernandez, I. J., Norton, S. A., and Stubbs, C. S., 2007, Cd, Ni, Pb, and Zn Concentrations in Forest Vegetation and Soils in Maine: Water Air Soil Pollut., 180, 141-153.
  • Johnson, K. B., Haines, T. A., Kahl, J. S., Norton, S. A., Amirbahman, A. and Sheehan, K. D., 2007, Controls on mercury and methylmercury deposition for two watersheds in Acadia National Park, Maine, Environ. Monit. Assess., 126, 1-3, 55-67.
  • Kahl, J.S., Nelson, S., Fernandez, I., Haines, T., Norton, S., Wiersma, G. B., Jacobson, G. Jr., Amirbahman, A., Johnson, K. Schauffler, M., Rustad, L., Tonnessen, K., Lent, R., Bank, M., Elvir, J., Eckhoff, J., Caron, J., Ruck, P., Parker, J., Campbell, J., Manski, D. Breen, R., Sheehan, K., and Grygo, A., 2007, Watershed nitrogen and mercury geochemical fluxes integrate landscape factors in long-term research watersheds at Acadia National Park, Maine, USA: Environ. Monit. Assess., 126, 1-3, 69-80.
  • Lake, B., Coolidge, K., Norton, S. A., and Amirbahman, A., 2007, Factors contributing to the internal loading of phosphorus from anoxic sediments in six Maine, USA, lakes: Science. Tot. Environ., 373, 534-541.
  • Kopáek, J., Marešová, M., Hejzlar, J., and Norton. S A., 2007, Natural inactivation of phosphorus by aluminum in pre-industrial lake sediments: Limnol. Oceanogr., 52, 1147-1155.
  • Norton, S. A., 2007, Atmospheric Metal Pollutants – Archives, Methods, and History: Water, Air, Soil Poll. Focus., 93-98.
  • Norton, S. A., Wilson, T., Handley, M., and Osterberg, E. C., 2007, Atmospheric deposition of cadmium in the northeastern USA: Applied Geochemistry, 22, 1217-1222.
  • Anderson, M. W., + 11 co-authors, 2007, Attitude changes of Undergraduate University students in a general education course: Journal of General Education, 56, #2.
  • Rosfjord, C. H., Webster, K. E., Kahl, J. S., Norton, S. A., Fernandez, I. J., and Herlihy, A., 2007, Alteration of base cation biogeochemistry by widespread increases in chloride in northeastern U.S. lakes: Environ. Sci. Technol., 41, 7688-7693.
  • Szillery, J. E., Fernandez, I. J., Norton, S. A., Rustad, L. E., and White, A. S., 2006, Using ion-exchange resins to study soil response to experimental watershed acidification: Environ. Monit. Assess., 117, 383-398.
  • Roos-Barraclough, F., Givelet, N., Shotyk, W., and Norton, S. A., 2006, Use of Br and Se in peat to reconstruct the natural and anthropogenic fluxes of atmospheric Hg: A ten-thousand year record from Caribou Bog, Maine, U.S.A.: Environ. Sci. Technol.: 40, 3188-3194.
  • Kopáek, J., Marešová, M., Norton, S. A., Porcal, P., and Veselý, J., 2006, Photochemical source of metals for sediments: Environ. Sci. Tech.: 40, 4455-4459.
  • Norton, S. A., Fernandez, I., Amirbahman, A., Coolidge, K., and Navrátil, T., 2006, Aluminum, Phosphorus, and Oligotrophy - Assembling the pieces of the puzzle: Proc. Soc. Intern. Limnol. 29, 1877-1886.
  • Sherman, J., Fernandez, I. J., Norton, S. A., Ohno, T, and Rustad, L. E., 2006, Soil aluminum, iron, and phosphorus dynamics in response to long-term experimental nitrogen and sulfur additions at the Bear Brook Watershed in Maine, USA: Environ. Monit. Assess., 121, 419-427. (182)
  • Perry, E., Norton, S. A., Kamman, N., Lorey, P., and Driscoll, C. T., 2005, Deconstruction of historic mercury accumulation in lake sediments, northeastern United States: Ecotoxicology, 14, 85-100.
  • Dennis, I. F., Clair, T. A., Driscoll, C. T., Kamman, N., Chalmers, A., Shanley, J., Norton, S. A., and Kahl, S., 2005, Distribution patterns of mercury in lakes and rivers of northeastern North America: Ecotoxicology, 14, 113-124.
  • Kamman, N. C., Chalmers, A., Clair, T. A, Major, A., Moore, R., Norton, S. A., and Shanley, J., 2005, Factors influencing mercury in freshwater surface sediments of northeastern North America: Ecotoxicology, 14, 101-112.
  • Evans, G. C., Norton, S. A., Fernandez, I. J., Kahl, J. S., and Hanson, D., 2005, Changes in concentrations of major and trace metals in northeastern U.S.-Canadian sub-alpine forest floors: Water Air Soil Poll., l 163, 245-267.
  • Lawler, J. J., Rubin, J., Cosby, B. J., Fernandez, I. J., Kahl, J. S., and Norton, S. A., 2005, Predicting recovery from acidic deposition: Applying a modified TAF (Tracking Analysis Framework) model to Maine (USA) high elevation lakes: Water, Air, and Soil Poll.,164, 383-399.
  • Kopáek, J., Borovec, J., Hejzlar, J., Ulrich, K-U., Norton, S. A., and Amirbahman, A., 2005, Aluminum control of phosphorus sorption by lake sediments: Environ. Sci. Tech., 39, 8784-8789.
  • Kopáek, J., Klementová, Š, Norton, S. A., 2005, Photochemical production of ionic and particulate aluminum and iron in lakes: Environ. Sci. Tech., 39: 3656-3662.
  • Veselý, J., Majer, V., Kopá?ek, J., Šafanda, J., and Norton, S. A., 2005, Possible causes of increasing silica concentrations in the Bohemian Forest lakes: Hydrol. Earth Syst. Sci.:9, 699-706.
  • Navrátil, T., Norton, S. A., Fernandez, I. J., Diehl, M. S., Kahl, J. S., in review, Assessment of secondary sulfate mineral precipitation as a mechanism of soil acid neutralizing capacity. Environ. Monit. Assess.
  • Lake, B., Amirbahman, A., and Norton, S. A., in review, Seasonal phosphorus dynamics in the surficial sediment of shallow temperate lakes: A 31P-NMR study. Environ. Sci. Tech.
  • Lake, B., Amirbahman, A., and Norton, S. A., in review, Seasonal phosphorus dynamics in the surficial sediment of shallow temperate lakes: A diffusive equilibrium study. Environ. Science Tech.
  • Norton, S. A., Perry, R. H., Saros, J., Jacobson, G. L., Jr., Fernandez, I. J., Kopá?ek, J., and SanClements, M., in review, The controls on phosphorus availability in a boreal lake ecosystem since deglaciation. J. Paleolimnol.

Education

Ph.D., Harvard University, 1967

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