World Library  

QR link for Influence of Terrestrial Inputs on Continental Shelf Carbon Dioxide : Volume 10, Issue 2 (07/02/2013)
Add to Book Shelf
Flag as Inappropriate
Email this Book

Influence of Terrestrial Inputs on Continental Shelf Carbon Dioxide : Volume 10, Issue 2 (07/02/2013)

By Jiang, L.-q.

Click here to view

Book Id: WPLBN0004003379
Format Type: PDF Article :
File Size: Pages 11
Reproduction Date: 2015

Title: Influence of Terrestrial Inputs on Continental Shelf Carbon Dioxide : Volume 10, Issue 2 (07/02/2013)  
Author: Jiang, L.-q.
Volume: Vol. 10, Issue 2
Language: English
Subject: Science, Biogeosciences
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2013
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Bauer, J. E., Wang, Y., Cai, W., & Jiang, L. (2013). Influence of Terrestrial Inputs on Continental Shelf Carbon Dioxide : Volume 10, Issue 2 (07/02/2013). Retrieved from http://community.schoollibrary.com/


Description
Description: Department of Marine Sciences, The University of Georgia, Athens, Georgia 30602, USA. The US South Atlantic Bight (SAB) is a low-latitude shallow continental shelf bordered landward by abundant salt marshes and rivers. Based on previously published data on sea surface partial pressure of carbon dioxide (pCO2) and new dissolved inorganic carbon (DIC) and dissolved organic carbon (DOC) data, a model analysis is presented to identify and quantify the contributions of various terrestrial carbon inputs on SAB sea surface pCO2. After removal of pCO2 variations due to annual temperature variability and air–sea gas exchange from the in situ pCO2, the temperature- and gas-exchange-corrected pCO2 (TG-corrected pCO2) is derived. Contributions from rivers, salt marshes, and the continental shelf to the TG-corrected pCO2 are then calculated. Our findings demonstrate that although additions of CO2 from within shelf waters (i.e., ΔpCO2(shelf)) were the greatest of the three components and underwent the largest seasonal changes, ΔpCO2(shelf) showed smaller onshore–offshore gradients than rivers and marshes. In contrast, CO2 contributions from river (ΔpCO2(river)) and salt marsh (ΔpCO2(marsh)) components were greatest closest to the coast and decreased with distance offshore. In addition, the magnitude of ΔpCO2(marsh) was about three-fold greater than ΔpCO2(river). Our findings also revealed that decomposition of terrestrial organic carbon was an important factor regulating the seasonal pattern of pCO2 on the inner shelf. Despite large uncertainties, this study demonstrates the importance of terrestrial inputs, in particular those from coastal wetlands, on coastal ocean CO2 distributions.

Summary
Influence of terrestrial inputs on continental shelf carbon dioxide

Excerpt
Atkinson, L. P., Yoder, J. A., and Lee, T. N.: Review of upwelling off the southeastern United States and its effect on continental-shelf nutrient concentrations and primary productivity, Rapp. P.-v. Cons. Int. Explor. Mer, 183, 70–78, 1984.; Alberts, J. J. and Takács, M.: Importance of humic substances for carbon and nitrogen transport into southeastern United States estuaries, Organic Geochem., 30, 385–395, 1999.; Alexander, C. E., Broutman, M. A., and Field, D. W.: An Inventory of Coastal Wetlands of the USA, NOAA, US Department of Commerce, Washington, DC, 1986.; Atkinson, L. P., Blanton, J. O., and Haines, E.: Shelf flushing rates based on the distribution of salinity and freshwater in the Georgia Bight, Estuar. Coast. Shelf S., 7, 465–472, 1978.; Blanton, J. O.: Ocean currents along a nearshore frontal zone on the continental shelf of the southeastern United States, J. Phys. Oceanogr., 11, 1627–1637, 1981.; Bauer, J. E. and Bianchi, T. S.: Dissolved Organic Carbon Cycling and Transformation, in: Treatise on Estuarine and Coastal Science, edited by: Wolanski, E. and McLusky, D. S., Biogeochemistry, 5, 7–67, Waltham, Academic Press, 2011.; Bianchi, T. S. and Bauer, J. E.: Particulate Organic Carbon Cycling and Transformation, in: Treatise on Estuarine and Coastal Science, edited by: Wolanski, E. and McLusky, D. S., Biogeochemistry, 5, 69–117, Waltham, Academic Press, 2011.; Borges, A. V., Djenidi, S., Lacrois, G., Théate, J.-M., Delille, B., and Frankignoulle, M.: Atmospheric CO2 flux from mangrove surrounding waters, Geophys. Res. Lett., 30, 1558, doi:10.1029/2003GL017143, 2003.; Borges, A. V., Delille, B., and Frankignoulle, M.: Budgeting sinks and sources of CO2 in the coastal ocean: diversity of ecosystems counts, Geophys. Res. Lett., 32, doi:10.1029/2005GL023053, 2005.; Borges, A. V., Schiettecatte, L.-S., Abril, G., Delille, B., and Gazeau, F.: Carbon dioxide in European coastal waters, Estuar. Coast. Shelf S., 70, 375–387, 2006.; Cai, W.-J. and Wang, Y.: The chemistry, fluxes, and sources of carbon dioxide in the estuarine waters of the Satilla and Altamaha Rivers, Georgia, Limnol. Oceanogr., 43, 657–668, 1998.; Cai, W.-J., Pomeroy, L. R., Moran, M. A., and Wang, Y.: Oxygen and carbon dioxide mass balance for the estuarine-intertidal marshe complex of five rivers in the southeastern U.S., Limnol. Oceanogr., 44, 639–649, 1999.; Cai, W.-J., Dai, M., and Wang, Y.: Air-sea exchange of carbon dioxide in ocean margins: A province-based synthesis, Geophys. Res. Lett., 33, L12603, doi:10.1029/2006GL026219, 2006.; Cai, W.-J., Hu, X., Huang, W.-J., Jiang, L.-Q., Wang, Y., Peng, T. H., and Zhang, X.: Alkalinity distribution in the western North Atlantic Ocean margins, J. Geophys. Res., 115, C08014, doi:10.1029/2009JC005482, 2010.; 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. II, 56, 578–590, 2009.; Cole, J. J. and Caraco, N. F.: Carbon in catchments: connecting terrestrial carbon losses with aquatic metabolism, Mar. Freshwater Res., 52, 101–110, 2001.; Dai, T. and Wiegert, R. G.: Estimation of the primary productivity of Spartina alterniflora using a canopy model, Ecography, 19, 410–423, 1996.; de Hass, H., van Weering, T. C. E., and de Stigter, H.: Organic carbon in shelf seas: sinks or sources, processes and products, Cont. Shelf Res., 22, 691–717, 2002.; DeAlteris, J. A.: Elemental and isotopic characterization of organic matter and carbon in the South Atlantic Bight, College of William & Mary, Williamsburg, Virginia, 196 pp., 2007.; Dunstan, W. M.

 
 



Copyright © World Library Foundation. All rights reserved. eBooks from School eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.