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Carbon Export and Sequestration in the Southern Benguela Upwelling System: Lower and Upper Estimates : Volume 6, Issue 2 (25/06/2009)

By Waldron, H. N.

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Book Id: WPLBN0004021042
Format Type: PDF Article :
File Size: Pages 20
Reproduction Date: 2015

Title: Carbon Export and Sequestration in the Southern Benguela Upwelling System: Lower and Upper Estimates : Volume 6, Issue 2 (25/06/2009)  
Author: Waldron, H. N.
Volume: Vol. 6, Issue 2
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2009
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Swart, N. C., S. Monteir, P. M., & Waldron, H. N. (2009). Carbon Export and Sequestration in the Southern Benguela Upwelling System: Lower and Upper Estimates : Volume 6, Issue 2 (25/06/2009). Retrieved from http://worldlibrary.net/


Description
Description: Department of Oceanography, University of Cape Town, Rondebosch 7700, South Africa. Three independent studies of carbon export and sequestration in the southern Benguela upwelling system are presented. They were undertaken by Waldron (upwelling index), Monteiro (discrete upwelling centres – gate hypothesis model) and Swart (cross-shelf advection in bottom nelpheloid layers). The annual estimates were, 3.9×1013, 0.72×1013 and 8.6×1011 gC respectively. The lowest estimate was derived from a consideration of low frequency lateral carbon export in the bottom nepheloid layer and was thought likely to be an under-estimate. Taking into account high frequency episodic events, intermediate nepheloid layers and along isopycnal export of DOC at surface and intermediate depths was thought likely to result in a substantial upward revision. The remaining two estimates were considered to be an upper and lower estimate of carbon export and sequestration due to factors inherent in the methodologies. The upper estimate presents a two-dimensional system, integrated alongshore; the lower estimate sums a series of upwelling centres in order to obtain a system flux. The former is therefore a uniform extrapolation along the coast while the latter omits upwelling between the upwelling centres.

Summary
Carbon export and sequestration in the southern Benguela upwelling system: lower and upper estimates

Excerpt
Biscaye, P. E., Flagg, C. N., and Falkowski, P. G.: The Shelf Edge Exchange Processes experiment, SEEP-II an introduction to hypotheses, results and conclusions, Deep-Sea Res. Pt II, 41(2/3), 231–252, 1994.; Brown, P. C., Painting, S. J., and Cochrane, K. L.: Estimates of phytoplankton and bacterial biomass and production in the northern and southern Benguela ecosystems, S. Afr. J. Marine Sci., 11, 537–564, 1991.; Chavez, F. P. and Toggweiler, J. R.: Physical Estimates of Global New Production: The Upwelling Contribution, Env. Sci. Res. Reps., 18, 313–320, 1995.; Chen, C., Liu, K., and Macdonald, J. R.: Ocean biogeochemistry: a synthesis of the Joint Global Ocean Flux Study (JGOFS), Springer-Verlag, New York, 3, 53–95, 2003.; Chen, C.-T. A. and Borges, A. V.: Reconciling opposing views on carbon cycling in the coastal ocean: Continental shelves as sinks and near-shore ecosystems as sources of atmospheric CO2, Deep-Sea Res. Pt II, 56(8–10), 578–590, 2009.; Dingle, R. V. and Nelson, G.: Sea-bottom temperature, salinity and dissolved oxygen on the continental margin off south-western Africa, S. Afr. J. Marine Sci., 13, 33–49, 1993.; Doney, S. C., Tilbrook, B., Roy, S., Metzl, N., Le Quéré, C., Hood, M., Feely, R. A., and Bakker, D.: Surface-ocean CO2 variability and vulnerability, Deep-Sea Res. Pt II, 56(8–10), 640–655, 2009.; Falkowski, P., Laws, E., Barber, R., and Murray J.: Ocean biogeochemistry: a synthesis of the Joint Global Ocean Flux Study (JGOFS), Springer-Verlag, New York, 4, 99–121, 2003.; Hopkinson Jr., C. S., Vallino, J., and Nolin, A.: Decomposition of dissolved organic matter from the continental margin, Deep-Sea Res. Pt II, 49, 4461–4478, 2002.; Inthorn, M., Wagner, T., Scheeder, G., and Zabel, M.: Lateral transport controls distribution, quality, and burial of organic matter along continental slopes in high-productivity areas, Geology, 34(3), 205–208, 2006.; Lass, H. U. and Mohrholz, V.: On the interaction between the subtropical gyre and the Subtropical Cell on the shelf of the SE Atlantic, J. Marine Syst., 76, 1–43, 2008.; Liu, K. K., Iseki, K., and Chao, S. Y.: Continental margin carbon fluxes, in: Hanson, R. B., Ducklow, H. W., and Field, J. G.: The changing ocean carbon cycle, Cambridge University press, 187–239, 2000.; Lutjeharms, J. R. E. and Meeuwis, J. M.: The extent and variability of South-East Atlantic upwelling, in: The Benguela and Comparable Ecosystems, edited by: Payne, A. I. L., Gulland, J. A., and Brink, K. H., S. Afr. J. Marine Sci., 5, 51–62, 1987.; Malone, T. C., Hopkins, T. S., Falkowski, P. G., and Whitledge, T. E.: Production and transport of phytoplankton biomass over the continental shelf of the New York Bight, Cont. Shelf Res., 1, 305–337, 1983.; Monteiro, P. M. S.: The oceanography, the biogeochemistry and the fluxes of carbon dioxide in the Benguela upwelling system, Ph D thesis, University of Cape Town, South. Africa, 354 pp., 1996.; Monteiro, P. M. S., Nelson, G., van der Plas, A., Mabille, E., Bailey, G. W., and Klingelhoeffer, E.: Internal tide-shelf topography interactions as a potential forcing factor governing the large scale sedimentation and burial fluxes of particulate organic matter (POM) in the Benguela upwelling system, Cont. Shelf Res., 25, 1864–1876, 2005.; Monteiro, P. M. S.: Carbon fluxes in the Benguela Upwelling System, in: Carbon and Nutrient Fluxes in Continental Margins: A Global Synthesis, edited by: Liu, K. K., Atkinson, L., Quiòones, R., and Talaue-McManus, L., Springer, Berlin, in press, 2009.; Rowe, G., Smith, S., Falkowski, P., Whitledge, T., Theroux, R., Phoel, W., and Ducklow, H.: Do continental shelves export organic matter?, Nature, 324, 559–561, 1986.; Rullkötter, J.: Organic matter: The driving force for early diagenesis, in: Marine Geochemistry, edited by: Schulz, H. D. and Zabel, M., Springer, Berlin, 4, 129–172, 2000.; Santana-Casiano, J. M., González-Dávila, M., and Ucha, I. R.: Carbon dioxide flux

 

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