Shelf-basin interactions in the Arctic Ocean based on 210Pb and Ra isotope tracer distributions

Deep-Sea Research Part I: Oceanographic Research Papers

Volumn 50, Issue 3, 2003, Pages 397-416

  Smith, J N ^a   Moran, S B ^b   Macdonald, R W ^c  

^a BEDFORD INSTITUTE OF OCEANOGRAPHY   (Canada)

^b UNIVERSITY OF RHODE ISLAND   (United States)

^c INSTITUTE OF OCEAN SCIENCES   (Canada)

Author keywords

Arctic; Circulation; Radionuclide; Scavenging; Sedimentation; Tracer

Indexed keywords

LEAD; RADIOISOTOPES; RADIUM; SCAVENGING; SEDIMENTS;

INTERMEDIATE WATERS;

OCEANOGRAPHY;

CIRCULATION; LEAD ISOTOPE; RADIONUCLIDE; RADIUM ISOTOPE; SCAVENGING (CHEMISTRY); SEDIMENTATION; TRACER;

ARCTIC OCEAN;

EID: 0242286684     PISSN: 09670637     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0967-0637(02)00166-8     Document Type: Article

References (49)

1. Bacon, M.P., Spencer, D.W., Brewer, P.G., 1976. Pb-210/Ra-226 and Po-210/Pb-210 disequilibria in seawater and suspended matter. Earth and Planetary Science Letters 17, 295-305.
2. Bacon, M.P., Huh, C.-A., Moore, R.M., 1989. Vertical profiles of some natural radionuclides over the Alpha Ridge, Arctic Ocean. Earth and Planetary Science Letters 95, 15-22.
3. 137Cs isotopes into continental shelf sediments, East Chukchi Sea, Alaskan Arctic. Geochimica et Cosmochimica Acta 59 21, 4435-4448.
4. Booth, B.C., Horner, R.A., 1997. Microalgae on the Arctic Ocean Section 1994: species abundance and biomass. Deep-Sea Research II 44 (8), 1607-1622.
5. Broecker, W.S., Takahashi, T., Takahashi, T., 1985. Sources and flow patterns of deep-ocean waters as deduced from potential temperature, salinity, and initial phosphate concentration. Journal of Geophysical Research 90, 6925-6939.
6. Carmack, E.C., Macdonald, R.W., Perkin, R.G., McLaughlin, F.A., Pearson, R.J., 1995. Evidence for warming of Atlantic water in the southern Canadian Basin of the Arctic Ocean; results from the Larsen-93 expedition. Geophysical Research Letters 22, 1061-1064.
7. Carmack, E.C., Aagaard, K., Swift, J.H., Macdonald, R.W., McLaughlin, F.A., Jones, E.P., Perkin, R.G., Smith, J.N., Ellis, K.M., Kilius, L.R., 1997. Changes in temperature and tracer distributions within the Arctic Ocean: results from the 1994 Arctic Ocean Section. Deep-Sea Research II 44 (8), 1487-1502.
8. Clough, L.M., Ambrose, W.G., Cochran, J.K., Barnes, C., Renaud, P.E., Aller, R.C., 1997. Infaunal density, biomass and bioturbation in the sediments of the Arctic Ocean. Deep-Sea Research II 44 (8), 1683-1704.
9. Cochran, J.K., Hirschberg, D.J., Livingston, H.D., Buesseler, K.O., Key, R.M., 1995. Natural and anthropogenic radionuclide distributions in the Nansen Basin, Arctic Ocean: scavenging rates and circulation time scales. Deep-Sea Research II 42, 1495-1517.
10. 210Pb scavenging in the North Atlantic and North Pacific Oceans. Earth and Planetary Science Letters 97, 332-352.
11. 210Pb technique. Canadian Journal of Fisheries and Aquatic Sciences 42, 809-814.
12. 210Pb at Summit, Greenland since 1885. Tellus 44B, 72-79.
13. Edmonds, H.N., Moran, S.B., Hoff, J.A., Smith, J.N., Edwards, R.L., 1998. Protactinium-231 and thorium-230 abundances and high scavenging rates in the Western Arctic Ocean. Science 280, 405-407.
14. Ekwurzel, B., Schlosser, P., Swift, J.H., Mortlock, R.A., Fairbanks, R.G., 2001. River runoff, sea ice meltwater and Pacific water distribution and mean residence times in the Arctic Ocean. Journal of Geophysical Research 106 (5), 9075-9092.
15. English, T.S., 1961. Some biological oceanographic observations in the central north Polar Sea, Drift Station Alpha, 1957-1958. Arctic Institute of North America Research Paper 13, 8-80.
16. Fisher, N.S., Cochran, J.K., Krishnaswami, S., Livingston, H.D., 1988. Predicting the ocean flux of radionuclides on sinking biogenic debris. Nature 335, 622-625.
17. Gobeil, C, Macdonald, R.W., Smith, J.N., 1999. Mercury profiles in sediments of the Arctic Ocean Basins. Environmental Science and Technology 33, 4194-4198.
18. Gobeil, C., Macdonald, R.W., Smith, J.N., Beaudin, L., 2001. Atlantic water flow pathways revealed by lead contamination in Arctic basins sediments. Science 293, 1301-1304.
19. Gosselin, M., Levasseur, M., Wheeler, P.A., Horner, R.A., Booth, B.C., 1997. New measurements of phytoplankton and ice algal production in the Arctic Ocean. Deep-Sea Research II 44 (8), 1623-1644.
20. 137Cs chronology of sediments from small shallow Arctic lakes. Geochimica et Cosmochimica Acta 54, 1443-1451.
21. Huh, C.-H., Pisias, N.G., Kelley, J.M., Maiti, T.C., Grantz, A., 1997. Natural radionuclides and plutonium in sediments from the Western Arctic Ocean: sedimentation rates and pathways of radionuclides. Deep-Sea Research II 44 (8), 1725-1744.
22. Jones, E.P., Anderson, L.G., 1986. On the origin of chemical properties of the Arctic Ocean halocline. Journal of Geophysical Research 91 (C9), 10759-10767.
23. Jones, E.P., Schauer, U., Eriksson, P., 2002. Contributions to the upper layers of the Arctic Ocean from the Norwegian Sea. EOS, Transactions AGU, 83 (4), Ocean Sciences Meeting Suppl., Abstract OS12E-177.
24. 228Ra in the world ocean. Journal of Geophysical Research 78, 241-245.
25. Kharkar, D.P., Thompson, J., Turekian, K.K., Forster, W.O., 1976. Uranium and thorium decay series nuclides in plankton from the Caribbean. Limnology and Oceanography 21, 294-299.
26. Kipphut, G.W., 1978. An investigation of sedimentary processes in lakes. Ph.D. Dissertation, Columbia University, New York.
27. McLaughlin, F.A., Carmack, E.G., Macdonald, R.W., Bishop, J.K., 1996. Physical and geochemical properties across the Atlantic/Pacific water mass boundary in the southern Canadian basin. Journal of Geophysical Research 101 (C1), 1183-1197.
28. McLaughlin, F.A., Carmack, E.G., Macdonald, R.W., Weaver, A., Smith, J.N., 2002. The Canada Basin 1989-1995: upstream events and far-field effects of the Barents Sea Branch. Journal of Geophysical Research, 107 (C7), 19-1-19-20.
29. 210Po in the Arctic Ocean and the implications for chemical modification of the Pacific water inflow. Earth and Planetary Science Letters 77, 285-292.
30. 228Ra, salinity and silica. Journal of Geophysical Research 91 (C2), 2574-2580.
31. 234Th as a tracer of scavenging and particle export in the Beaufort Sea. Continental Shelf Research 20, 153-167.
32. 238U disequilibrium in the central Arctic Ocean: implications for particulate organic carbon export. Deep-Sea Research II 44(8), 1593-1606.
33. 210Po balance in surface waters of the mid Northern hemisphere. Deep-Sea Research I 45, 1263-1284.
34. 210Po in the surface waters of the Pacific Ocean. Earth and Planetary Science Letters 32, 304-312.
35. 210Po in the East China and Yellow Seas. Geochimica et Cosmochimica Acta 55, 1265-1272.
36. Rudels, B., Jones E, .P., Anderson, L.G., 1994. On the intermediate depth waters of the Arctic Ocean. In: Johannessen, O.M., Muench R, .D., Overland J, .E. (Eds.), The Polar Oceans and Their Role in Shaping the Global Environment. The Nansen Centennial Volume, Geophysical Monograph Series, Vol. 85. AGU, Washington, DC, pp. 33-46.
37. 228Ra as a tracer for shelf water in the Arctic Ocean. Deep-Sea Research II 42 (6), 1533-1553.
38. 210Pb in the South-equatorial Atlantic: distribution and disequilibrium in the upper 500 m. Deep-Sea Research II 46, 907-917.
39. Schauer, U., Muench, R.D., Rudels, B., Timokhov, L., 1997. Impact of eastern Arctic shelf waters on the Nansen Basin intermediate layers. Journal of Geophysical Research 102 (C2), 3371-3382.
40. Sherr, E.B., Sherr, B.F., Fessenden, L., 1997. Heterotrophic protists in the Central Arctic Ocean. Deep-Sea Research II 44 (8), 1665-1682.
41. Smith, J.N., Ellis, K.M., 1995. Radionuclide tracer profiles at the CESAR Ice Station and Canadian Ice Island in the Western Arctic Ocean. Deep-Sea Research II 42 (6), 1447-1470.
42. 137Cs tracer measurements in the Arctic Ocean. Deep-Sea Research I 45 (6), 959-984.
43. Smith, J.N., Ellis, K.M., Boyd, T.M., 1999. Circulation features in the Central Arctic Ocean revealed by nuclear fuel reprocessing tracers from SCICEX 95 and 96. Journal of Geophysical Research 104 (C12), 29663-29677.
44. Swift, J.H., Jones, E.P., Aagaard, K., Carmack, E.C., Hingston, M., Macdonald, R.W., McLaughlin, F.A., Perkin, R.G., 1997. Waters of the Makarov and Canada basins. Deep-Sea Research II 44 (8), 1503-1530.
45. 210Pb in the sediments and water column of the Northeast Atlantic from 47-59°N along 20°W. Earth and Planetary Science Letters 115, 75-87.
46. 210Pb flux in an Arctic region. Arctic 39, 59-64.
47. Wheeler, P.A., Gosselin, M., Sherr, E., Thibault, D., Kirchman, D.L., Benner, R., Whitledge, T.E., 1996. Active cycling of organic carbon in the central Arctic Ocean. Nature 380, 697-699.
48. Wheeler, P.A., Watkins, J.M., Hansing, R.L., 1997. Nutrients, organic carbon and organic nitrogen in the upper water column of the Arctic Ocean: implications for the sources of dissolved organic carbon. Deep-Sea Research II 44 (8), 1571-1592.
49. Woodgate, R.A., Aagaard, K., Muench, R.D., Gunn, J., Bjork, G., Rudels, B., Roach, A.T., Schauer, U., 2001. The Arctic Ocean boundary current along the Eurasian slope and the adjacent Lomonosov Ridge: water mass properties, transports and transformations from moored instruments. Deep-Sea Research I 48, 1757-1792.