U.S. JGOFS SMP

U.S. JGOFS Synthesis & Modeling Project
Rik Wanninkhof Douglas Wallace Molly Baringer Collaborators: Peter Koltermann Dennis Hansell Claus Boening
Meridional transport of carbon dioxide in the North Atlantic Ocean NOAA/DOE OACES, 36 months
PROJECT DESCRIPTION:	We propose a comprehensive synthesis of carbon transport in the North Atlantic Ocean using newly developed procedures and a comprehensive dataset including WOCE/WHP, OACES, and German data. Carbon transport in the ocean is commonly ignored in global carbon models, which could cause serious bias in interpretation of results pertaining to location and strength of ocean and terrestrial sources and sinks. The proposed analysis will compare transports along six sections from the high latitude formations regions into the South Atlantic. By comparison of the transports, adjusted for seasonal changes, air-sea fluxes can be estimated from the convergences or divergences. These values will be compared to independent air-sea flux estimates. This will be the first time that such a comprehensive basin inorganic carbon transport analyses will be undertaken. It will also be the first time that the role of total organic carbon on carbon transport will be investigated. The carbon transport estimates can only be accomplished by a unique collaboration of field investigators of inorganic and organic carbon (Wallace, Hansell and Wanninkhof), and those familiar with the hydrography and heat and salt transport (Baringer, Boening, and Koltermann). The partners in the international collaboration assure access and familiarity to a comprehensive dataset in the North Atlantic.
DATA:	Carbon transport data at 24.5°N in the Atlantic
PUBLICATIONS:	Macdonald, A.M., R. Wanninkhof, M.O. Baringer, K. Lee and D.W.R. Wallace. 2003. A 1998-1992 comparison of inorganic carbon and its transport across 24.5°N in the Atlantic. Deep-Sea Research II, 50(22-26): 3041-3064, U.S. JGOFS Contribution No. 967.
RELATED PROJECTS:	Hansell, Bates; Murnane "Mass balance assessments of carbon partitioning: A contribution to the U.S. JGOFS SMP" Lee; Millero; Feely; Wanninkhof "Degree of saturation state of CaCO3 in the oceans" Sabine; Key; Feely; Millero; Wanninkhof; Kozyr "Synthesis and interpretation of the NOAA/DOE global CO2 survey data"
INVESTIGATOR INFORMATION:	Rik Wanninkhof NOAA/AOML 4301 Rickenbacker Causeway Miami, FL 33149 tel: (305) 361-4379 fax: (305) 361-4392 wanninkhof@aoml.noaa.gov http://www.aoml.noaa.gov/ocd/people/wanninkhof/ Douglas W. R. Wallace Abteilung Meereschemie Institut fuer Meereskunde Duesternbrooker Weg 20 24105 Kiel, Germany tel: 29-0431-497-3810 dwallace@ifm.uni-kiel.de http://cdiac.esd.ornl.gov/cdiac/oceans/wallace.html Molly Baringer NOAA/AOML 4301 Rickenbacker Causeway Miami, FL 33149 tel: (305) 361-4345 baringer@aoml.noaa.gov http://www.aoml.noaa.gov/cgi-bin/htgrep?file=general/phonlist.html&isindex=baringer Peter Koltermann (no address yet) Dennis Hansell University of Miami RSMAS/MAC 4600 Rickenbacker Causeway Miami, FL 33149 305-361-4078 305-361-4689 dhansell@rsmas.miami.edu http://www.rsmas.miami.edu/divs/mac/people/dhansell.html Claus Boening (no address yet)