HR: 16:00h
AN: OS24B-01 INVITED     [Abstracts]
TI: Recent observations of warming in the North Pacific: Is this evidence of anthropogenic climate change?
AU: * Robbins, P E
EM: probbins@ucsd.edu
AF: Scripps Institution of Oceanography, 9500 Gilman Dr, La Jolla, CA 92093 United States
AU: Swift, J
EM: jswift@ucsd.edu
AF: Scripps Institution of Oceanography, 9500 Gilman Dr, La Jolla, CA 92093 United States
AU: Fine, R
EM: rana@rsmas.miami.edu
AF: Rosenstiel School of Marine & Atmospheric Science, 4600 Rickenbacker Cswy, Miami, FL 33149 United States
AU: Thurnherr, A
EM: ant@ldeo.columbia.edu
AF: Rosenstiel School of Marine & Atmospheric Science, 4600 Rickenbacker Cswy, Miami, FL 33149 United States
AU: Thurnherr, A
EM: ant@ldeo.columbia.edu
AF: Lamont Doherty Earty Observatory, 61 Route 9W - Po Box 1000, Palisades, NY 10964 United States
AU: Min, D
EM: dmin@geosc.psu.edu
AF: Lamont Doherty Earty Observatory, 61 Route 9W - Po Box 1000, Palisades, NY 10964 United States
AU: Min, D
EM: dmin@geosc.psu.edu
AF: Pennsylvania State Univ., 512 Deike Building, University Park, PA 16802 United States
AB: A transbasin survey of the North Pacific Ocean in 2004 reveals sizable warming of the upper ocean. Temperature observations from the 2004 CLIVAR P2 occupation along 30 degrees north are compared with 1994 WOCE occupation of the same line. The greatest observed warming (about 0.5 C) is observed in the lower ventilated layers of the subtropical thermocline. Analysis of the transient tracers concentrations offers a temporal diagnostic of the characteristic renewal time of the ventilated water masses. Chloroflourocarbon measurements collected on the 2004 CLIVAR P2 cruise show that the water masses with the greatest observed temperature increases are those with ventilation time scales of a decade to a century.
DE: 4808 Chemical tracers
DE: 4215 Climate and interannual variability (3309)
DE: 4536 Hydrography
SC: Ocean Sciences [OS]
MN: 2004 AGU Fall Meeting