9205119 McCartney In this project, the PI's will provide scientific leadership for, and hydrographic measurements on a hydrographic section across the Pacific along a latitude of about 17 degrees South. This line was originally proposed to be done in 1993, but was deferred pending availability of both ship time and science funding. It is a contribution to the World Ocean Circulation Experiment (WOCE), and is referred to as WOCE line P-21. Many scientific issues crucial to the role of the ocean in climate change will be addressed by the data to be generated in this expedition. ***