World Ocean Circulation Experiment WOCE

The urgent need for nutrient standards was demonstrated during the recently completed World Ocean Circulation Experiment (WOCE) and Joint Global Ocean Flux Study (JGOFS) measurements which were made by different laboratories. The internal consistency of the nutrient data was evaluated by comparing measurements made in deep water (depth over 3500 m) at nearby stations on different cruises. If one assumes that nutrient concentrations in deep water at the same location should not... 

Chlorofluorocarbon (CFC) compounds (Freons ) are important tracers of ocean circulation. Since CFC-11 and CFC-12 were released at different rates, their concentrations as well as their ratios can be used to determine when a water mass left contact with the sea surface over the 50 years since Freons were released into the atmosphere and taken up by the ocean. CFC-113 and carbon tetrachloride are being investigated as additional tracers. Picomole levels of CFCs dissolved in seawater are determined using a gas chromatograph equipped with an electron capture detector. The World Ocean Circulation Experiment (WOCE) Hydrographic Program calls for measurements with a precision and accuracy of 1% and a detection limit of... 

Data from GEOSECS, TTO, BATS, and HOTS and other major oceanographic research projects, such as the WOCE (World Ocean Circulation Experiment) are available online. The GEOSECS, TTO, and WOCE datasets are part of the Java Ocean Atlas, which provides a graphic exploration environment for generating vertical profiles, cross-sections, and property-property plots. Many of the data presented in this text were obtained from this source. 

WOCE, 2002. World Ocean Circulation Experiment, Global Data, Version 3.0, WOCE International Project Office, WOCE Report, Southampton, UK published by U.S. National Oceanographic Data Center, Silver Spring, 180/02, DVD-ROM. 

World Ocean Circulation Experiment (1994), WOCE Report No. 68/91, Revision 1, November 1994, Woods Hole, MA, USA. 

For oxygen determinations within the framework of WOCE (World Ocean Circulation Experiment) an algorithm to convert the CTD oxygen sensor measurements into oxygen profiles based on the documented sensor physics and in situ oxygen data of discrete samples is described in the WOCE Opierations Manual (WHP, 1994). The achievable accuracy and precision is < 1 % and 0.1 %, respjectively. 

---