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Particulate organic carbon export fluxes on Chukchi Shelf, western Arctic Ocean, derived from 210Po/210Pb disequilibrium

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Abstract

Fluxes of particulate organic carbon (POC) were derived from 210Po/210Pb disequilibrium during the 4th Chinese National Arctic Research Expedition (CHINARE-4) from July 1 to September 28, 2010. Average residence times of particulate 210Po in the euphotic zone were −16.00 a to 1.54 a, which are higher than those of dissolved 210Po (−6.89 a to −0.70 a). Great excesses of dissolved 210Po were observed at all stations, with an average 210Po/210Pb ratio of 1.91±0.20, resulting from 210Pb atmospheric deposition after sea ice melt. POC fluxes from the euphotic zone were estimated by two methods (E and B) in the irreversible scavenging model. Estimated POC fluxes were 945–126 mmol C/(m2·a) and 1 848–109 mmol C/(m2·a) by methods E and B, respectively, both decreasing from low to high latitude. The results are comparable to previous works for the same region, indicating efficient biological pumping in the Chukchi Sea. The results can improve understanding of the carbon cycle in the western Arctic Ocean.

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References

  • Anderson L G, Olsson K, Chierica M. 1998. A carbon budget for the Arctic Ocean. Global Biochemistry, 12(3): 455–465.

    Article  Google Scholar 

  • Bacon M P. 1976. Applications of Pb-210/Ra-226 and Po-210/Pb-210 Disequilibria in the Study of Marine Geochemical Processes. Ph. D. Thesis, MIT-WHOI. 165p.

    Book  Google Scholar 

  • Balkanski Y J, Jacob D J, Gardner G M, Graustein W C, Turekian K K. 1993. Transport and residence times of troposphere aerosols inferred from a global three-dimensional simulation of 210Pb. Journal of Geophysical Research, 98(D11): 20 573–20 586.

    Article  Google Scholar 

  • Baskaran M, Naidu A S. 1995. 210Pb-derived chronology and the fluxes of 210Pb and 137Cs isotopes into continental shelf sediments, East Chukchi Sea, Alaskan Arctic. Geochimica et Cosmochimica Acta, 59(21): 4 435–4 448.

    Article  Google Scholar 

  • Baskaran M, Santschi P H. 2002. Particulate and dissolved 210Pb activities in the shelf and slope regions of the Gulf of Mexico waters. Continental Shelf Research, 22: 1 493–1 510.

    Article  Google Scholar 

  • Baskaran M, Swarzenski P M, Porcelli D. 2003. Role of colloidal material in the removal of 234Th in the Canada basin of the Arctic Ocean. Deep Sea Research I, 50(10): 1 353–1 373.

    Article  Google Scholar 

  • Baskaran M. 2011. Po-210 and Pb-210 as atmospheric tracers and global atmospheric Pb-210 fallout: a review. Journal of Environmental Radioactivity, 102: 500–513.

    Article  Google Scholar 

  • Bates N R. 2006. Air-sea CO2 fluxes and the continental shelf pump of carbon in the Chukchi Sea adjacent to the Arctic Ocean. Journal of Geophysical Research, 111(C10013), http://dx.doi.org/10.1029/2005JC003083.

    Google Scholar 

  • Buesseler K O, Bacon M P, Cochran J K, Livingston H D. 1992. Carbon and nitrogen export during the JGOFS North Atlantic Bloom experiment estimated from 234Th: 238U disequilibria. Deep Sea Research Part I, 39: 1 115–1 137.

    Article  Google Scholar 

  • Buesseler K O, Benitez-Nelson C R, Rutgers van der Loeff M M, Andrews J, Ball L, Crossin G, Charette M A. 2001. An intercomparison of small- and large-volume techniques for thorium-234 in seawater. Marine Chemistry, 74: 15–28.

    Article  Google Scholar 

  • Cai P, Chen W, Dai M, Wan Z, Wang D, Li Q, Tang T, Lv D. 2008. A high-resolution study of particle export in the southern South China Sea based on 234Th: 238U disequilibrium. Journal of Geophysical Research, 113: C04019, http://doi:10.1029/2007JC004268.

    Google Scholar 

  • Cai P, Dai M, Lv D, Chen W. 2006. An improvement in the small-volume technique for determining thorium-234 in seawater. Marine Chemistry, 100: 282–288.

    Article  Google Scholar 

  • Cai P, Huang Y, Chen M, Guo L, Liu G, Qiu Y. 2002. New production based on 228Ra-derived nutrient budgets and thorium-estimated POC export at the intercalibration station in the South China Sea. Deep Sea Research I, 49: 53–66.

    Article  Google Scholar 

  • Cai W J, Chen L, Chen B, Gao Z, Lee S H, Chen J, Pierrot D, Sullivan K, Wang Y, Huang W J, Zhang Y, Xu S, Murata A, Grebmeier J M, Jones E P, Zhang H. 2010. Decrease in the CO2 uptake capacity in an ice-free Arctic Ocean basin. Science, 329(5991): 556–559.

    Article  Google Scholar 

  • Carvalho F P. 2011. Polonium (210Po) and lead (210Pb) in marine organisms and their transfer in marine food chains. Journal of Environmental Radioactivity, 102(5): 462–472.

    Article  Google Scholar 

  • Charette M A, Moran S B, Bishop J K. 1999. 234Th as a tracer of particulae organic carbon export in the subarctic northeast Pacific Ocean. Deep Sea Research II, 46(11–12): 2 833–2 861.

    Article  Google Scholar 

  • Chen M, Huang Y P, Cai P H, Guo L. 2003. Particulate organic carbon export fluxes in the Canada Basin and Bering Sea as derived from 234Th/238U disequilibria. Arctic, 56(1): 32–44.

    Article  Google Scholar 

  • Coale K H, Bruland K W. 1985. 234Th: 238U disequilibria within the California Current. Limnology and Oceanography, 30(1): 22–33.

    Article  Google Scholar 

  • Eakins J D, Morrison R T. 1978. A new procedure for the determination of lead-210 in lake and marine sediments. The International Journal of Applied Radiation and Isotopes, 29(9–10): 531–536.

    Article  Google Scholar 

  • Else B G T, Papakyriakou T N, Granskog M A et al. 2008. Observations of sea surface fCO2 distributions and estimated air-sea CO2 fluxes in the Hudson Bay region (Canada) during the open water season. Journal of Geophysical Research: Oceans (1978–2012), 113(C8).

    Google Scholar 

  • Eppley R W, Peterson B J. 1979. Particulate organic matter flux and planktonic new production in the deep ocean. Nature, 282: 677–680.

    Article  Google Scholar 

  • Fleer A P, Bacon M P. 1984. Determination of 210Pb and 210Po in seawater and marine particulate matter. Neclear Instrumentation and Methods of Physical Research, 223(2–3): 243–249.

    Article  Google Scholar 

  • He J, Ma H, Chen L, Xiang B, Zeng X, Yin M, Zeng W. 2008. The investigation on particulate organic carbon fluxes with disequilibria between thorium-234 and uranium-238 in Prydz Bay, the Southern Ocean. Acta Oceanologica Sinica, 27(2): 21–29.

    Google Scholar 

  • Kim G, Kim T-H, Church T M. 2012. Po-210 in the environment: biogeochemical cycling and bioavailability. In: Baskaran M ed. Handbook of Environmental Isotope Geochemistry, Advances in Isotope Geochemistry. p.271–284.

    Chapter  Google Scholar 

  • Liu Z L, Chen J F, Zhang T, Chen Z, Zhang H. 2007. The sizefractionated chlorophyll a concentration and primary productivity in the Chukchi Sea and its northern Chukchi Plateau. Acta Ecological Sinica, 27(12): 4 953–4 962.

    Article  Google Scholar 

  • Ma H, Zeng Z, He J, Han Z, Lin W, Chen L, Cheng J, Zeng S. 2014. 234Th-derived particulate organic carbon export in the Prydz Bay, Antarctica. Journal of Radioanalytical and Nuclear Chemistry, 299: 621–630.

    Article  Google Scholar 

  • Masque P, Cochran J K, Hirschberg D J et al. 2007. Radionuclides in Arctic sea ice: tracers of sources, fates and ice transit time scales. Deep Sea Research Part I: Oceanographic Research Papers, 54(8): 1 289–1 310.

    Article  Google Scholar 

  • Masque P, Sanchez-Cabeza J A, Bruach J M, Palacois E, Canals M. 2002. Balance and residence times of Pb-210 and Po-210 in surface waters of the northwestern Mediterranean Sea. Continental Shelf Research, 22: 2 127–2 146.

    Article  Google Scholar 

  • Moran S B, Ellis K M, Smith J N. 1997. 234Th/238U disequilibrium in the central Arctic Ocean: implications for particulate organic carbon export. Deep Sea Research II, 44(8): 1 593–1 606.

    Article  Google Scholar 

  • Moran S B, Kelly R P, Hagstrom K, Smith J N, Grebmeier J M, Cooper L W, Cota G F, Walsh J J, Bates N R, Hansell D A, Maslowski W, Nelson R P, Mulsow S. 2005. Seasonal changes in POC export flux in the Chukchi Sea and implications of water column-benthic coupling in Arctic shelves. Deep Sea Research II, 52: 3 427–3 451.

    Article  Google Scholar 

  • Nozaki Y. 1986. Ra-226-Rn-222-Pb-210 systematics in seawater near the bottom of the ocean. Earth and Planetary Science Letters, 80: 36–40.

    Article  Google Scholar 

  • Pipko I I, Semiletov I P, Tishchenko P Y et al. 2002. Carbonate chemistry dynamics in Bering Strait and the Chukchi Sea. Progress in Oceanography, 55(1): 77–94.

    Article  Google Scholar 

  • Rutgers van der Loeff M M, Friedrich J, Bathmann U V. 1997. Carbon export during the spring bloom at southern polar front, determined with the natural tracer 234Th. Deep Sea Research II, 44(1–2): 457–478.

    Article  Google Scholar 

  • Rutgers van der Loeff M M, Key R M, Scholten J, Bouch D, Michel A. 1995. 228Ra as a tracer for shelf water in the Arctic Ocean. Deep Sea Research II, 42(6): 1 533–1 553.

    Article  Google Scholar 

  • Rutgers van der Loeff M M, Meyer R, Rudels B, Rachor E. 2002. Resuspension and particle transport in the benthic nepheloid layer in and near Fram Strait in relation to faunal abundances and 234Th depletion. Deep Sea Research I, 49(11): 1 941–1 958.

    Article  Google Scholar 

  • Shimmield G B, Ritchie G D, Fileman T W. 1995. The impact of marginal ice zoneprocesses on the distribution of 210Po, 210Pb and 234Th and implications for new production in the Bellingshausen Sea, Antarctica. Deep Sea Research II, 42(4–5): 1 313–1 335.

    Article  Google Scholar 

  • Stewart G, Moran S, Lomas M, Kelly R. 2011. Direct comparison of 210Po, 234Th and POC particle-size distributions and export fluxes at the Bermuda Atlantic Time-series study (BATS) site. J. Environ. Radioact., 102: 479–489.

    Article  Google Scholar 

  • Trimble S M, Baskaran M. 2005. The role of suspended particulate matter in 234Th scavenging and 234Th-derived export fluxes of POC in the Canada Basin of the Arctic Ocean. Marine Chemistry, 96: 1–19.

    Article  Google Scholar 

  • Verdeny E, Masque P, Garcia-Orellana J, Hanfland C, Cochran J K, Stewart G M. 2009. POC export from ocean surface waters by means of 234Th/238U and 210Po/210Pb disequilibria: a review of the use of two radiotracer pairs. Deep Sea Research II, 56: 1 502–1 518.

    Article  Google Scholar 

  • Woodgate R, Aagaard K, Weingartner T. 2005. A year in the physical oceanography of the Chukchi Sea: Moored measurements from autumn 1990–1991. Deep Sea Research II, 52: 3 116–3 149.

    Article  Google Scholar 

  • Yang W F. 2005. Marine Biogeochemistry of 210Po and 210Pb and Their Implications Regarding the Cycling and Export of Particles. Ph. D. Thesis, Xiamen University. (in Chinese with English abstract)

    Google Scholar 

  • Yang Y L, Han X, Kusakabe M. 2004. POC fluxes from euphotic zone estimated from 234Th deficiency in winter in the north-western North Pacific Ocean. Acta Oceanologica Sinica, 23(1): 135–147.

    Google Scholar 

  • Yu W, He J, Li Y, Lin W, Chen L. 2012. Particlate organic carbon export fluxes and validation of steady state model of 234Th export in the Chukchi Sea. Deep Sea Research II, 81–84: 63–71.

    Article  Google Scholar 

  • Yu W. 2010. Estimation and Determination of Carbon Fluxes on Three Interfaces of Western Arctic Ocean in Summer Time. Ph. D. Thesis, Tsinhua University. (in Chinese with English abstract)

    Google Scholar 

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Authors and Affiliations

  1. College of Oceanography and Environment Science, Xiamen University, Xiamen, 361005, China

    Jianhua He  (何建华)

  2. Third Institute of Oceanography, State Oceanic Administration, Xiamen, 361005, China

    Jianhua He  (何建华), Wen Yu  (余雯), Wuhui Lin  (林武辉), Wu Men  (门武) & Liqi Chen  (陈立奇)

  3. Key Lab of Global Change and Marine-Atmospheric Chemistry State, Oceanic Administration, Xiamen, 361005, China

    Jianhua He  (何建华), Wuhui Lin  (林武辉) & Liqi Chen  (陈立奇)

  4. Department of Engineering Physics, Tsinghua University, Beijing, 100084, China

    Wuhui Lin  (林武辉)

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  1. Jianhua He  (何建华)
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  2. Wen Yu  (余雯)
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  3. Wuhui Lin  (林武辉)
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  4. Wu Men  (门武)
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  5. Liqi Chen  (陈立奇)
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Correspondence to Liqi Chen  (陈立奇).

Additional information

Supported by the National Natural Science Foundation of China (Nos. 41106167, 11205094, 41230529, 41476172, 41406221, 41476173), the Youth Foundation of State Oceanic Administration (No. 2011531), and the CHINARE2012-15 for 01-04-02, 02-01, and 03-04-02

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He, J., Yu, W., Lin, W. et al. Particulate organic carbon export fluxes on Chukchi Shelf, western Arctic Ocean, derived from 210Po/210Pb disequilibrium. Chin. J. Ocean. Limnol. 33, 741–747 (2015). https://doi.org/10.1007/s00343-015-3357-x

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  • DOI: https://doi.org/10.1007/s00343-015-3357-x

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