Table of Contents

• Dataset Description
  • Methods & Sampling
• Parameters
• Instruments
• Deployments
• Project Information
• Program Information

   PI:              Richard Barber, Duke University, rbarber@duke.edu
                    John Marra, Lamont Doherty Earth Observatory, marra@ldeo.columbia.edu
                    Walker Smith, Virginia Institute of Marine Science, wos@VIMS.EDU
   dataset:         Primary Production, incubated on deck, 24 hours
   technician:      Michael Hiscock, Duke University, hiscock@duke.edu
 
   Methodology:
   - Chapter 19 of the JGOFS protocols (1994) "Primary Production by 14C"
   - Hiscock, M.R., Marra, J., Smith, W.O., Jr., Goericke, R., Measures,
   C.I., Vink, S., Olson, R.J., Sosik, H.M., Barber, R.T., in press. Primary
   Productivity and its Regulation in the Pacific Sector of the Southern
   Ocean. Deep Sea Research II.
   - Barber, Richard T. 1993. In Situ Primary Production Protocols.
   U.S. JGOFS Equatorial Pacific Protocols, 1993, section 7.
   - Smith, W. O., Jr., R. T. Barber, M. R. Hiscock and J. Marra (submitted)
   The Seasonal Cycle of Phytoplankton Biomass and Primary Productivity
   in the Ross Sea, Antarctica.   Deep-Sea Research II.
   - Barber, R. T., L. Borden, Z. Johnson, J. Marra, C. Knudsen, and C.C.Trees
   (1997) Ground truthing modeled kpar and on deck primary productivity
   incubations with in situ observations. SPIE 2963, 834-839.
   - Barber, R. T. and F. P. Chavez (1991) Regulation of primary productivity
   rate in the equatorial Pacific Ocean.  Limnol. Oceanogr. 36, 1803-1815.
   - Morel, A. (1988) Optical modelling of the upper ocean in relation to its
   biogenous matter content (Case 1 waters).
   Journal of Biophysical Research 93, 10749-10768.
 

The U.S. Southern Ocean JGOFS program, called Antarctic Environment and Southern Ocean Process Study (AESOPS), began in August 1996 and continued through March 1998. The U.S. JGOFS AESOPS program focused on two regions in the Southern Ocean: an east/west section of the Ross-Sea continental shelf along 76.5°S, and a second north/south section of the Southern Ocean spanning the Antarctic Circumpolar Current (ACC) at ~170°W (identified as the Polar Front). The science program, coordinated by Antarctic Support Associates (ASA), comprised eleven cruises using the R.V.I.B Nathaniel B. Palmer and R/V Roger Revelle as observational platforms and for deployment and recovery of instrumented moorings and sediment-trap arrays. The Ross-Sea region was occupied on six occasions and the Polar Front five times. Mapping data were obtained from SeaSoar, ADCP, and bathymetric systems. Satellite coverage was provided by the NASA SeaWiFS and the NOAA/NASA Pathfinder programs.

The United States Joint Global Ocean Flux Study was a national component of international JGOFS and an integral part of global climate change research.

The U.S. launched the Joint Global Ocean Flux Study (JGOFS) in the late 1980s to study the ocean carbon cycle. An ambitious goal was set to understand the controls on the concentrations and fluxes of carbon and associated nutrients in the ocean. A new field of ocean biogeochemistry emerged with an emphasis on quality measurements of carbon system parameters and interdisciplinary field studies of the biological, chemical and physical process which control the ocean carbon cycle. As we studied ocean biogeochemistry, we learned that our simple views of carbon uptake and transport were severely limited, and a new "wave" of ocean science was born. U.S. JGOFS has been supported primarily by the U.S. National Science Foundation in collaboration with the National Oceanic and Atmospheric Administration, the National Aeronautics and Space Administration, the Department of Energy and the Office of Naval Research. U.S. JGOFS, ended in 2005 with the conclusion of the Synthesis and Modeling Project (SMP).