Christopher Sabine Robert Key Richard Feely John Bullister Frank Millero Rik Wanninkhof Tsung-Hung Peng Alex Kozyr Synthesis and Interpretation of the NOAA/DOE Global CO2 Survey Data NOAA-OACES/DOE, 3 years PROJECT SUMMARY The recently completed DOE/NOAA cosponsored global carbon survey produced over an order of magnitude more high-quality carbon measurements than previous survey efforts. These data provide an important asset to the scientific community investigating carbon cycling in the oceans. Most of the data have been reported to national archive facilities, but have not been synthesized into a unified, internally consistent global data set. The central objective of this proposal is to generate that unified data set and to determine the global distribution and inventories of both natural and anthropogenic carbon species. These estimates will be used to infer the rate of anthropogenic CO2 uptake in the oceans and to evaluate numerical ocean carbon models. These estimates also provide an important benchmark against which future observational studies will be compared. To accomplish this task, a number of additional products will be generated which will directly benefit the scientific community. The first will be improved global estimates of thermocline ventilation rates and chlorofluorocarbon based watermass ages. We will also provide empirical equations for estimating surface carbon distributions from conservative parameters and a field-based evaluation of the carbon dissociation constants. A careful examination of the new data set will allow us to evaluate optimal sampling strategies for the future and an evaluation of the technology necessary to properly address remaining questions on the cycling of carbon in the oceans. This work will directly address the OACES and DOE goals of improving our ability to observe, understand, predict, and respond to changes in the global environment. Christopher L. Sabine Dep. of Geological and Geophisical Sciences Princeton University Guyot Hall Princeton, NJ 08544-4709 tel: (609) 258-6899 fax: (609) 258-1274 sabine@geo.princeton.edu Robert M. Key Program in Atmospheric and Ocean Sciences Department of Geosciences, Guyot Hall Princeton University Princeton, NJ 08544-1003 tel: (609) 258-3595 fax: (609) 258-1274 key@princeton.edu Richard A. Feely NOAA/PMEL 7600 Sand Point Way NE Seattle, WA 98115 tel : (206) 526-6214 fax : (206) 526-6744 feely@pmel.noaa.gov John L. Bullister NOAA/PMEL 7600 Sand Point Way NE Seattle, WA 98115 tel : (206) 526-6741 fax : (206) 526 bullister@pmel.noaa.gov Frank J. Millero RSMAS/MAC University of Miami 4600 Rickenbacker Causeway Miami, FL 33149 tel: (305) 361-4707 fax: (305) 361-4144 fmillero@rsmas.miami.edu Rik Wanninkhof NOAA/AOML 4301 Rickenbacker Causeway Miami, FL 33149 tel: (305) 361-4379 fax: (305) 361-4392 wanninkhof@aoml.noaa.gov Dr. Tsung-Hung Peng NOAA/AOML 4301 Rickenbacker Causeway Miami, FL 33149 tel: (305) 361-4380 fax: (305) 361-4392 peng@aoml.noaa.gov Alexander Kozyr
The University of Tennessee
Systems Development Institute
2360 Cherahala Boulevard
Knoxville, TN 37932 USA
tel: (865) 946-1480
fax: (865) 946-1492
akozyr@utk.edu