Methodology For Oceanic Co2 Measurements Final Report

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ISBN 13 :
Total Pages : 47 pages
Book Rating : 4.:/5 (727 download)

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Download or read book CO2 Measurements Along the WOCE P-16 and 19 Sections in the South Pacific Ocean written by and published by . This book was released on 1992 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the support from the Department of Energy, we participated in the World Ocean Circulation Experiment (WOCE) cruises to document the spatial variation of the properties of the carbonate system over the world ocean. With the other members of the DOE C02 science team, we took advantage of the initial postponed ship schedule to initiate an intercomparison of total dissolved inorganic carbon measurement in seawater. This work has proven to be essential for the measurements performed at sea soon after. We participated in 2 cruises in the Equatorial Pacific Ocean along 150° W and 135° W. Surface seawater C02 partial pressure (pCO2) measured along 150° W has been compared with earlier measurements made by Ray Weiss in 1979 along the same cruise track. The large variations of surface seawater pCO2 (pCO2{sup sea}) on short spatial and temporal scale do not allow us to determine whether anthropogenic C02 modified pC02{sup sea} in this ocean area. In the laboratory we also investigated a different means of measuring total alkalinity by thermometry. In this highly variable ocean, several complementary approaches are now underway to detect the anthropogenic signal and predict future changes: Continual monitoring of the carbonate properties in the ocean; Modeling and remote sensing; and monitoring of atmospheric pCO2 and pO2. In this report, we summarize the results of the at-sea measurements of the parameters of the carbonate system in seawater on the WOCE cruises P16c and P17c, as well as the theoretical and experimental results of laboratory studies made to improve the measurement techniques.