SBI

SBI: Transport and transformations of Carbon and Nitrogen in the Western Arctic Ocean: A contribution to the SBI project
Funding: NSF Collaborative Research: Transport, Modifications and Fluxes of Carbon and Nitrogen in the Western Arctic Ocean: A Contribution to the SBI Project, Phase II. Grant number OPP-0124868 P.I.'s and Collaborators: D.A. Hansell (RSMAS); N.R. Bates (BIOS)
Click here for the SBI phase 3 proposal material
Transport and transformations of Carbon and Nitrogen in the Western Arctic Ocean: A contribution to the SBI project
The western Arctic Shelf-Basin Interactions (SBI) project is a contribution of the Ocean-Atmosphere-Ice Interactions (OAII) component of the National Science Foundation's (NSF) Arctic System Science (ARCSS) global change program. The overarching goal of the SBI project is to understand the physical and biogeochemical processes that link the Arctic shelves, slopes, and deep basins. The SBI project focuses on the key processes that control water mass exchange on the outer shelf, shelf break and upper slope, and ecosystem modifications, material fluxes and biogeochemical cycles.

In collaboration with D.A. Hansell (U. of Miami, RSMAS), our field sampling for process cruises comprises discrete measurements of the following parameters, which are the complete suite of the C and N pools: • Dissolved Organic Carbon (DOC) • Dissolved Organic Nitrogen (DON) • Particulate Organic Carbon (POC) • Particulate Organic Nitrogen (PON) • Dissolved Inorganic Carbon (DIC) • Dissolved Inorganic Nitrogen (DIN, provided by nutrient group) Discrete alkalinity (as a water mass tracer) and underway pCO₂ (i.e. surface seawater and atmospheric pCO₂, which will be used to determine air-sea CO₂ fluxes) will also be measured. This suite of biogeochemical variables is an essential contribution to the overarching goal and primary objectives of SBI as they relate to biogeochemical cycling, transport and fluxes.
Cruise Tracks
Spring/Summer 2002

Spring/Summer 2002

Related Sites for more information
• University of Tennessee • JOSS/UCAR data archive • USCGC Healy • WHOI Arctic Program
Selected Publications:
Bates, N.R., Best, M.-H.P., and Hansell, D.A., 2005. Net community production in the Chukchi and Beaufort Seas. Deep-Sea Research II (in press). Mathis, J.T., Hansell, D.A., and Bates, N.R., 2005. Dissolved organic matter in the Chukchi Sea: Temporal and spatial variability. Deep-Sea Research II (in press). 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., and Hansell, D.A., 2004. Seasonal changes in POC export in the Chukchi Sea and implications for water column-benthic coupling in Arctic shelves. Deep-Sea Research II (in press). Bates, N.R., Moran, B., Hansell, D.A., Codispoti, L.A., and Swift, J.R., 2005. Seasonal and spatial distribution of suspended and large aggregate particulate organic matter (POM) in the Chukchi Sea. Deep-Sea Research II (in press). Walsh, J.J., Dieterle, D.A., Maslowski, W., Grebmeier, J.M., Whitledge, T.E., Flint, M., McRoy, C.P., Moran, S.B., Bates, N.R., and Hansell, D.A., 2005. A numerical model of neglected spring primary production within the Chukchi/Beaufort Seas. Deep-Sea Research II (in press). Mathis, J.T., Hansell, D.A., Kadko, D., Bates, N.R., and Pickart, R.S., 2005. Eddy transport of organic carbon and nutrients from the Chukchi Shelf into the deep Arctic basin. Global Biogeochemical Cycles (in preparation) Bates, N.R., Kadko, D. and Cooper, L. 2005. Anthropogenic CO₂ in the Arctic Ocean. Science (submitted Dec. 2005) Bates, N.R., Moran, S.B., Hansell, D.A., and Mathis, J.T., 2005. An Increasing CO₂ Sink in the Arctic Ocean due to Sea-Ice Loss? Nature (submitted in Dec. 2005) Bates, N.R., 2005. Air-sea CO₂ fluxes and the continental shelf pump of carbon in the Chukchi Sea adjacent to the Arctic Ocean. Journal of Geophysical Research (in review)