TY - JOUR T1 - WOCE AMS Radiocarbon I: Pacific Ocean results (P6, P16, and P17) JF - Radiocarbon Y1 - 1996 A1 - Key, R. M. A1 - Quay, P. D. A1 - Jones, G. A. A1 - McNichol, A. P. A1 - von Reden, K. F. A1 - Schneider, R. J. AB - AMS radiocarbon results from the World Ocean Circulation Experiment in the Pacific Ocean show dramatic changes in the inventory and distribution of bomb-produced 14C since the time of the GEOSECS survey (8/73-6/74). Nearsurface 4C values for the eastern portion of both the northern and southern subtropical gyres decreased by 25-50%, with the change being greater in the north. Equatorial near-surface values have increased by ca. 25%. Changes in the 250-750-m depth range are dramatically different between the northern and southern basins. The intermediate and mode waters of the southern basin have increased by as much as 75%o since GEOSECS. Waters of similar density in the northern hemisphere are not exposed to the Southern Ocean circulation regime and are significantly less ventilated, showing maximum changes of ca. 50%. VL - 38 UR - https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/1918 IS - 3 N1 - id: 38 JO - WOCE AMS Radiocarbon I: Pacific Ocean results (P6, P16, and P17) ER -