Cooper.html

Lee W. Cooper

Ph.D., Oceanography, 1987
University of Alaska, Fairbanks

M.S., Botany, 1980
University of Washington

B.A., Biology, 1978
University of California,
Santa Cruz

Web Portal For Arctic Research at the University of Maryland Center for Environmental Science

MAJOR RESEARCH INTERESTS

Stable and radioisotope composition of organic materials and natural waters; aquatic plant physiology; high latitude oceanography and hydrology

PUBLICATIONS (2008- University of Maryland Center for Environmental Sciences)

Lalande, C., S.B. Moran, P. Wassmann, J.M. Grebmeier, L.W. Cooper, 2008. 234Th-derived particulate organic carbon fluxes in the northern Barents Sea with comparison to drifting sediment traps fluxes. Journal of Marine Systems, 73: 103-113, doi:10.1016/j.jmarsys.2007.09.004

McClelland, J. W., R. M. Holmes, B. J. Peterson, R. Amon, T. Brabets, L. Cooper, J. Gibson, V. V. Gordeev, C. Guay, D. Milburn, R. Staples, P. A. Raymond, I. Shiklomanov, R. Striegl, A. Zhulidov, T. Gurtovaya, and S. Zimov (2008), Development of a pan-Arctic database for river chemistry, Eos, Trans. AGU, 89:217-218, doi:10.1029/2008EO240001.

Mulholland, P. J., A M. Helton, G. C. Poole, R.O. Hall, Jr.,S. K. Hamilton, B. J. Peterson, J. L. Tank, L. R. Ashkenas, L. W. Cooper, C. N. Dahm, W. K. Dodds, S. E. G. Findlay, S. V. Gregory, N. B. Grimm, S.L. Johnson, W. H. McDowell, J. L. Meyer, H. M. Valett, J. R. Webster, C. P. Arango, J. J. Beaulieu, M. J. Bernot, A. J. Burgin, C. L. Crenshaw, L. T. Johnson, B. R. Niederlehner, J. M. O’Brien, J D. Potter, R W. Sheibley, D J. Sobota, S M. Thomas, 2008. Stream denitrification across biomes and its response to anthropogenic nitrate loading, Nature, 452:202-205, doi:10.1038/nature06686

Cooper, L.W., McClelland, J.W., Holmes, R.M, Raymond, P.A., Gibson, J.J., Guay, C.K., Peterson, B.J. , 2008. Flow-weighted Values of Runoff Tracers (δ18O, DOC, Ba, Alkalinity) from the Six Largest Arctic Rivers. Geophysical Research Letters, 35, L18606, doi:10.1029/2008GL035007, 2008.

Pirtle-Levy, R., Grebmeier, J.M., Cooper, L.W., Larsen, I.L., 2008. Seasonal variation of chlorophyll a in Arctic sediments implies long persistence of plant pigments. Deep-Sea Research II, in-press.

Cooper, L.W., Lalande, C., Pirtle-Levy, R., Larsen, I.L., Grebmeier, J.M., 2008. Seasonal and decadal shifts in particulate organic matter processing and sedimentation in the Bering Strait shelf region. Deep-Sea Research II, in-press.

Mulholland, P.J., Hall, R.O. Jr., Sobota, D.J., Dodds, W.K., Findlay, S.E.G., Grimm, N.B., Hamilton, S.K., McDowell, W.H., O’Brien, J.M., Tank, J.L., Ashkenas, L.R., Cooper, L.W., Dahm, C.N., Gregory. S.V., Johnson, S.L., Meyer, J.L. Peterson, B.J., Poole, G.C., Valett, H.M., Webster, J.R., Arango, C.P., Beaulieu, J.J., Bernot, M.J., Burgin, A.J., Crenshaw, C.L., Helton, A.M., Johnson, L.T., Niederlehner, B.R., Potter, J.D., Sheibley, R.W., Thomas, S.M. 2009. Nitrate removal in stream ecosystems measured by 15N addition experiments: Denitrification. Limnology and Oceanography, in-press.

Hall, R.O. Jr., Tank, J.L., Sobota, D.J., Mulholland, P.J., O’Brien, J.M., Dodds, W.K., Webster, J.R., Valett, H.M., Poole, G.C., Peterson, B.J., Meyer, J.L., McDowell, W.H., Johnson, S.L., Hamilton, S.K., Grimm, N.B., Gregory. S.V., Dahm, C.N., Cooper, L.W., Ashkenas, L.R., Thomas, S.M., Sheibley, R.W., Potter, J.D., Niederlehner, B.R., Johnson, S.L., Helton, A.M., Crenshaw, C.L., Burgin, A.J., Bernot, M.J., Beaulieu, J.J., Arango, C.P. 2009. Nitrate removal in stream ecosystems measured by 15N addition experiments:? Total uptake. Limonology and Oceanography, in-press.

PUBLICATIONS (2000-2007; University of Tennessee, Knoxville)

Garten, C.T., L.W. Cooper, W.M. Post, and P.J. Hanson. 2000. Climate controls on soil carbon isotope ratios in forests along an elevation gradient in the southern Appalachian Mountains. Ecology 81, 1108-1119. Abstract

Cooper, L.W., J.M. Kelley, L.A. Bond, K.A. Orlandini, and J.M. Grebmeier. 2000. Sources of the transuranic elements plutonium and neptunium in arctic marine sediments. Marine Chemistry 69, 253-276.

Cooper, L.W., I.L. Larsen, T.M. O'Hara, S. Dolvin, V. Woshner, and G.F. Cota. 2000. Radionuclide burdens in arctic marine mammals harvested during subsistence hunting. Arctic 53, 174-182. Abstract Reprint (.pdf file from Arctic Institute of North America)

Naidu, A.S., L.W. Cooper, B.P. Finney, R.W. Macdonald, C. Alexander, and I.P. Semiletov. 2000. Organic carbon isotope ratios (d¹³C) of Arctic Amerasian continental shelf sediments. International Journal of Earth Sciences 89, 522-532. Abstract

Cooper, L.W., G.H. Hong, T.M. Beasley, J.M. Grebmeier, 2001. Iodine-129 concentrations in marginal seas of the north Pacific and Pacific-influenced waters of the Arctic Ocean. Marine Pollution Bulletin. 42 (12):1347-1356. doi:10.1016/S0025-326X(01)00151-5 . Abstract

Cooper, L.W., J.M. Grebmeier, I.L. Larsen, V.G. Egorov, C. Theodorakis, H.P. Kelly, J.R. Lovvorn, 2002. Seasonal variation in sedimentation of organic materials in the St. Lawrence Island polynya region, Bering Sea. Marine Ecology Progress Series 226:13-26. Abstract

Hong, G.H., Y.I. Kim, S.H. Lee, L.W. Cooper, S.M. Choe, A.V. Tkalin, T. Lee, S.H. Kim, C.S. Chung, K. Hirose, 2002. ^239+240Pu and ¹³⁷Cs concentrations for zooplankton and nekton in the Northwest Pacific and Antarctic Oceans (1993-1996). Marine Pollution Bulletin 44(7): 660-665. doi:10.1016/S0025-326X(01)00322-8. Abstract.

Lovvorn, J.R., S.E. Richman, J.M. Grebmeier, L.W. Cooper, 2003. Diet and body condition of spectacled eiders wintering in pack ice of the Bering Sea. Polar Biology 26:259-267. DOI 10.1007/s00300-003-0477-0. Abstract

Khim, B.K., D.E. Krantz, L.W. Cooper, 2003. Seasonal discharge of esturarine freshwater to the western Chukchi Sea shelf identified in stable isotope profiles of mollusk shells. Journal of Geophysical Research 108:3300-3309. doi:10.1029/2003JC001816, 2003. Abstract

Grebmeier, J.M., G.R. DiTullio, J.P. Barry, L.W. Cooper, 2003. Benthic carbon cycling in the Ross Sea Polynya, Antarctica: Benthic community metabolism and sediment tracers. In: Biogeochemistry of the Ross Sea, Antarctica, R.B. Dunbar, ed. pp. 313-326, Antarctic Research Series Vol. 78 American Geophysical Union, Washington DC

Naidu, A.S., L.W. Cooper, J.M. Grebmeier, T.E. Whitledge, M.J. Hameedi, 2003. The continental margin of the North Bering-Chukchi Sea: Distribution, sources, fluxes and burial rates of organic carbon. In: R. Stein and R.W. Macdonald, eds. The Organic Carbon Cycle in the Arctic Ocean. Springer-Verlag, Berlin.

Cooper, L.W. and C. Solis, 2003. ¹⁸O and ¹³C in leaf litter versus tree-ring cellulose as proxy isotopic indicators of climate change. In: North American Temperate Deciduous Tree Responses to Changing Precipitation Regimes, P.J. Hanson and S. Wullschleger, eds. Ecological Studies 166, pp. 140-159. Springer-Verlag, Berlin

Cooper, L.W., 2003. The Russian-American Initiative for Land-Shelf Environments in the Arctic: Contributions to Arctic System Science. Arctic Research of the United States 17: 33-42. Full article is available on-line

Mulholland, P.J., H.M. Valett, J.R. Webster, S.A. Thomas, L.W. Cooper, S.K. Hamilton, B.J. Peterson, 2004. Stream denitrification and total nitrate uptake rates measured using a field ¹⁵N tracer addition approach. Limnology and Oceanography 49(3):809-820. Abstract. Full article.

Clement, J.L., L.W. Cooper, J.M. Grebmeier, 2004. Late-winter water column and sea ice conditions in the northern Bering Sea. Journal of Geophysical Research 109, C03022, doi:10.1029/2003JC002047, 2004. Abstract

Cooper, L.W., I.L. Larsen, J.M. Grebmeier, S.B. Moran, 2005. Rapid deposition of sea-ice rafted material to the Arctic Ocean traced using the cosmogenic radionuclide ⁷Be. Deep-Sea Research II, 52:3542-3461. Abstract. Paper and .pdf format reprints available by request; e-mail to lcooper1@utk.edu

Lovvorn, J.R., L.W. Cooper, M.L. Brooks, C.C. De Ruyck, J.K. Bump, J.M. Grebmeier, 2005. Organic matter pathways to zooplankton and benthos under pack ice in late winter and open water in late summer in the north-central Bering Sea. Marine Ecology Progress Series, 291:135-150. Abstract

Moran, S.B., R.P. Kelly, K. Hagstrom, J.N. Smith, J.M. Grebmeier, L.W. Cooper, G.F. Cota, J.J. Walsh, N.R. Bates, D.A. Hansell, W. Maslowski, R.P. Nelson, S. Mulsow, 2005. Seasonal changes in POC export flux in the Chukchi Sea and implications for water column - benthic coupling in Arctic shelves. Deep-Sea Research II, 52:3427-3451. doi:10.1016/j.dsr2.2005.09.011

Cooper, L.W., R. Benner, J.McClelland, B. Peterson, R. M. Holmes, P.A. Raymond, D.A. Hansell, J.M. Grebmeier, L.A. Codispoti, 2005. Linkages among runoff, dissolved organic carbon, and the stable isotope oxygen isotope composition of seawater and other water mass indicators in the Arctic Ocean. Journal of Geophysical Research, 110, G02013, Abstract. Paper and .pdf format reprints available by request; e-mail to lcooper1@utk.edu

Clement, J.L., W. Maslowski, L.W. Cooper, J.M. Grebmeier, W. Walczowski, 2005. Ocean circulation and exchanges through the northern Bering Sea: 1979-2001 model results. Deep-Sea Research II, 52:3509-3540.

Cota, G.F., L.W. Cooper, D.A. Darby, I.L. Larsen, 2006. Unexpectedly high radioactivity burdens in ice-rafted sediments from the Canadian Arctic Archipelago. The Science of the Total Environment, 366, 253-261. Abstract.

Cooper, L.W., L.A. Codispoti, V. Kelly, G.G. Sheffield, J.M. Grebmeier, 2006. The prospects for using Little Diomede Island as an environmental observation platform for oceanographic processes in Bering Strait. Arctic, 59(2): 129-141. .pdf format reprints available by request; e-mail to lcooper1@utk.edu

Cooper, L.W., C.J. Ashjian, S.L. Smith, L.A. Codispoti, J.M. Grebmeier, R.G. Campbell, E.B. Sherr, 2006. Rapid seasonal sea-ice retreat in the Arctic could be affecting Pacific Walrus (Odobenus rosmarus divergens) recruitment. Aquatic Mammals 32(1): 98-102, doi 10.1578/AM.32.1.2006.98

Grebmeier, J.M., J.E. Overland, S.E. Moore, E.V. Farley, E.C. Carmack, L.W. Cooper, K.E. Frey, J.H. Helle, F.A. McLaughlin, L. McNutt, 2006. A major ecosystem shift in the northern Bering Sea. Science 311: 1461-1464.

Grebmeier, J.M., L.W. Cooper, H.M. Feder, B.I. Sirenko, 2006. Ecosystem dynamics of the Pacific-influenced Northern Bering and Chukchi Seas in the Amerasian Arctic. Progress in Oceanography 71: 331-361.

Lalande, C., K. Lepore, L.W. Cooper, J.M. Grebmeier, S.B. Moran, 2007. Export fluxes of particulate organic carbon in the Chukchi Sea: A comparative study using ²³⁴Th/²³⁸U disequilibria and drifting sediment traps. Marine Chemistry, 103:185-196.

Mathis, J.T., D.A. Hansell, D. Kadko, N.R. Bates, and L.W. Cooper, 2007. Determining net dissolved organic carbon production in the hydrographically complex western Arctic Ocean. Limnology and Oceanography 52(2) 1789-1799.

Lepore, K., S.B. Moran, J.M. Grebmeier, L.W. Cooper, C. Lalande, W. Maslowski, V. Hill, N.R. Bates, D.A. Hansell, J.T. Mathis, and R.P. Kelly, 2007. Seasonal and interannual changes in POC export and Deposition in the Chukchi Sea. Journal of Geophysical Research, 112, C10024, doi:10.1029/2006JC003555, 2007

Lalande, C., J.M. Grebmeier, P. Wassmann, L.W. Cooper, M.V. Flint, and V.M. Sergeeva, 2007, Export fluxes of biogenic matter in the presence and absence of seasonal sea ice cover in the Chukchi Sea. Continental Shelf Research, 27, 2051-2065

PUBLICATIONS (PRIOR TO 2000, at Oak Ridge National Laboratory, UCLA and University of Alaska Fairbanks)

Cooper, L.W. and C. P. McRoy, 1988. Stable carbon isotope variability in marine macrophytes along intertidal gradients. Oecologia 77:238-241

Cooper, L.W. and C. P. McRoy, 1988. Anatomical adaptations to rocky substrates and surf exposure by the seagrass genus Phyllospadix. Aquatic Botany 32:365-381.

Cooper, L.W., 1989. Patterns of carbon isotopic variability in eelgrass, Zostera marina L., from Izembek Lagoon, Alaska. Aquatic Botany 34:329-340.

Cooper, L.W. and M.J. DeNiro, 1989. Stable carbon isotope variability in the seagrass Posidonia oceanica: Evidence for light intensity effects. Marine Ecology - Progress Series 50:225-229.

Cooper, L.W. and M.J. DeNiro, 1989. Depletion of light isotopes of oxygen and hydrogen in tissue water of intertidal plants: Implications for water economy. Marine Biology 101:397-400.

Cooper, L.W. and M.J. DeNiro, 1989. Covariance of oxygen and hydrogen isotopic compositions in plant water: Species effects. Ecology 70:1619-1628.

Cooper, L.W. and M.J. DeNiro, 1989. Oxygen-18 content of atmospheric oxygen does not affect the oxygen isotope relationship between environmental water and cellulose in a submerged aquatic plant, Egeria densa Planch. Plant Physiology 91:536-541.

DeNiro, M.J. and L.W. Cooper, 1989. Post-photosynthetic modification of oxygen isotope ratios of carbohydrates in the potato: Implications for paleoclimatic reconstruction based on isotopic analysis of wood cellulose. Geochimica et Cosmochimica Acta 53:2573-2580.

Grebmeier, J.M., L.W. Cooper, and M.J. DeNiro, 1990. Oxygen isotope composition of bottom seawater and tunicate cellulose used as indicators of water masses in the northern Bering and Chukchi Seas. Limnology and Oceanography 35:1182-1195.

Cooper, L.W., M.J. DeNiro, and J. Keeley, 1991. The relationship between stable oxygen and hydrogen isotope ratios in water of astomatal plants. In: Stable Isotope Geochemistry, A Tribute to Sam Epstein, pp 247-255. H.P. Taylor, J.R. O'Neill, I.R. Kaplan, eds. Geochemical Society, San Antonio.

Cooper, L.W., C.R. Olsen, D.K. Solomon, I.L. Larsen, R.B. Cook, and J.M. Grebmeier, 1991. Stable isotopes of oxygen, and natural and fallout radionuclides used for tracing runoff during snowmelt in an arctic watershed. Water Resources Research 27:2171-2179.

Kang, D.-J., C. S. Chung, L.W. Cooper, C. Y. Kang, Y.D. Kim, and G.H. Hong, 1992. Oxygen-18 and nutrients in the surface waters of the Bransfield Strait, Antarctica during austral summer 1990/91. Journal of the Oceanological Society of Korea 27:250-258.

Cooper, L.W., C. Solis, D.L. Kane, L.D. Hinzman, 1993. Application of oxygen-18 tracer techniques to arctic hydrological processes. Arctic and Alpine Research 25: 247-255.

Grebmeier, J. M., L.W. Cooper, I.L. Larsen, C. Solis, and C.R. Olsen, 1993. Cesium-137 inventories in Alaskan tundra, lake and marine sediments: An indicator of recent organic material transport? In: Applications of Isotope Techniques in Studying Past and Current Environmental Changes in the Hydrosphere and the Atmosphere, pp 147-159. International Atomic Energy Agency, Vienna.

McCarthy, J.F., T.M. Williams, L. Liang, P.M. Jardine, L.W. Jolley, D.L. Taylor, A.V. Palumbo, and L.W. Cooper, 1993. Mobility of organic matter in a sandy aquifer. Environmental Science and Technology 27: 667-676.

Grebmeier, J.M. and L.W. Cooper, 1994. A decade of benthic research on the continental shelves of the northern Bering and Chukchi Seas: Lessons learned. In: R.H Meehan, V. Sergienko, and G. Weller, eds. Bridges of Science between North America and the Russian Far East, pp 87-98, Arctic Division, American Association for the Advancement of Science, Fairbanks, Alaska.

Cooper, L.W. and R.J. Norby, 1994. Atmospheric CO₂ enrichment can increase the ¹⁸O content of leaf water and cellulose: paleoclimatic and ecophysiological implications. Climate Research 4:1-11.

Cooper, L.W., J.M. Grebmeier, I.L. Larsen, C. Solis, C., and C.R. Olsen, 1995. Evidence for re-distribution of cesium-137 in Alaskan tundra, lake and marine sediments. Science of the Total Environment 160/161: 296-306.

Grebmeier, J.M. and L.W. Cooper, 1995. Influence of the St. Lawrence Island Polynya on the Bering Sea benthos. Journal of Geophysical Research 100: 4439-4460.

Cooper, L.W., I.L. Larsen, C. Solis, J.M. Grebmeier, C.R. Olsen, D.K. Solomon, and R.B. Cook, 1996. Isotopic Tracers for Investigating Hydrologic Processes. In: Landscape Function: Implications for Ecosystem Response to Disturbance, A Case Study in the Arctic, J.F. Reynolds and J.D. Tenhunen, eds. pp. 165-182, Springer-Verlag, New York.

Cooper, L.W., I.L. Larsen, G.L. Franklin, G.F. Houser, L.G. Emelyanova, L.N., Neretin, 1996. Anthropogenic radioactivity levels in the vicinity of the Bilibino Nuclear Power Station, Chukotka, Russia. Polar Geography 20: 3-19.

Beasley, T.M., L.W. Cooper, J.M. Grebmeier, L.R. Kilius, and H.A. Synal, 1997. ³⁶Cl and ¹²⁹I in the Yenesei, Kolyma and Mackenzie Rivers, 1993. Environmental Science and Technology 31: 1834-1836.

Cooper, L.W., T.E. Whitledge, J.M. Grebmeier, and T. Weingartner, 1997. Nutrient, salinity and stable oxygen isotope composition of Bering and Chukchi Sea in and around the Bering Strait. Journal of Geophysical Research 102: 12,563-12,574.

Egorov, V.G., S.E. Nalivaiko, V.S. Pavlenko, V.S., O.S. Rzshevsky, L.W. Cooper, J.M. Grebmeier, and L.R. Shugart, 1997. Submersible UV-B spectroradiometer using an acousto-optic tunable filter. Proc. SPIE Vol. 2963: 664-669, Ocean Optics XIII, Steven G. Ackelson, editor. The International Society for Optical Engineering

Beasley, T. M., L.W. Cooper, J.M. Grebmeier, K. Aagaard, J.M. Kelly, L.R. Kilius, 1998. ²³⁷Np/¹²⁹I atom ratios in Arctic Ocean surface waters: Has ²³⁷Np from European fuel reprocessing facilities entered the Arctic Ocean? Journal of Environmental Radioactivity 39, 255-277

Cooper, L.W., I.L. Larsen, T.M. Beasley, S.S. Dolvin, J.M. Grebmeier, J.M. Kelly, M. Scott, and A. Johnson-Pyrtle, 1998. The distribution of radiocesium and plutonium in sea ice-entrained Arctic sediments in relation to potential sources and sinks. Journal of Environmental Radioactivity 39, 279-303.

Cooper, L.W., T.M. Beasley, X.-L.Zhao, C. Soto, K.L. Vinogradova, and K.H. Dunton, 1998. Marine algae as historical indicators of the transport of nuclear fuel re-processing wastes from mid-to-high latitudes in the Atlantic Ocean. Marine Biology 131, 391-399. Abstract

Cooper, L.W., J.M. Grebmeier, I.L. Larsen, S.S. Dolvin, A.J. Reed, 1998. Inventories and distribution of radiocesium in Arctic marine sediments: Influence of biological and physical processes, 1998. Chemistry and Ecology 15, 27-46.

Cooper, L.W. Isotopic fractionation in snow cover, 1998. In: Isotopic Tracers in Catchment Hydrology, pp. 119-136, J.J. McDonnell and C. Kendall, eds. Elsevier, Amsterdam

Garten, C.T., W.M. Post, P.J. Hanson, and L.W. Cooper, 1999. Forest carbon soil inventories and dynamics along an elevation gradient in the southern Appalachian Mountains. Biogeochemistry 45, 115-145.

Cooper, L.W. G.F. Cota, L. Pomeroy, and J.M. Grebmeier. 1999. Modification of NO, PO, and NO/PO during flow across the Bering and Chukchi Shelves: Implications for use as Arctic water mass tracers. Journal of Geophysical Research 104, 7827-7836.

Cooper, L.W., T.M. Beasley, K. Aagaard, J.M. Kelley, I.L. Larsen, and J.M. Grebmeier. 1999. Distributions of Nuclear Fuel-reprocessing Tracers in the Arctic Ocean: Indications of Russian river influence. Journal of Marine Research 57, 715-738.

Münchow, A., T. Weingartner, and L.W. Cooper. 1999. The summer hydrography and surface circulation in the East Siberian Shelf Sea. Journal of Physical Oceanography 29, 2167-2182. Abstract

Schlosser, P., R. Bayer, G. Bönisch, L. Cooper, B. Ekwurzel, W.J. Jenkins, S. Khatiwala, S. Pfirman, and W.M. Smethie. 1999. Pathways and mean residence times of dissolved pollutants in the ocean derived from transient tracers and stable isotopes. Science of the Total Environment 237/238,15-30.