Other
Scientific paper
Jan 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30b..15j&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 2, pp. 15-1, CiteID 1043, DOI 10.1029/2002GL015225
Other
5
Global Change: Oceans (4203), Oceanography: General: Climate And Interannual Variability (3309), Oceanography: General: Water Masses, Global Change: Climate Dynamics (3309)
Scientific paper
Hydrographic changes in the Northwest Pacific Ocean are examined using data for two time periods: 1945: 1975 and 1976:1998. The largest changes in T/S (2°C,0.2 psu) are within the interfrontal zone between the Kuroshio Extension (KE) and the subarctic (or Oyashio) front near the Shatsky Rise, and are consistent with a southward shift of the Kuroshio Bifurcation Front (KBF). Other major changes seen are a freshening of ~0.04 psu of the newly formed North Pacific Intermediate Water (NPIW); a shoaling over time of the halocline in the center of the Western Subarctic Gyre (WSAG); and a southward shift of the subarctic front between the dateline and 150°W. Because long-term T/S changes near the Shatsky Rise are well-correlated, we have examined subsurface thermal data at 100 and 200-m depth in the region and found that shifts in front locations show a high degree of correlation with the PDO index on an interannual basis, and lagging it by ~1 year at 200-m depth.
Dunworth-Baker Jane
Joyce Terrence M.
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