Changes in water properties and transports along 24 deg N in the North Pacific between 1985 and 2005

We conducted a trans-Pacific hydrographic section along 24 deg N in 2005 to investigate the ocean structure and its changes from previous observations in 1985. We detected significant basin-average water property changes from 1985 to 2005. Apparent oxygen utilization increased below the thermocline...

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Bibliographic Details
Published in:Journal of Geophysical Research. C. Oceans 2009-01, Vol.113 (C0)
Main Authors: Kouketsu, Shinya, Fukasawa, Masao, Kaneko, Ikuo, Kawano, Takeshi, Hiroshi Uchida, Doi, Toshimasa, Aoyama, Michio, Murakami, Kiyoshi
Format: Article
Language:English
Subjects:
Marine
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Summary:We conducted a trans-Pacific hydrographic section along 24 deg N in 2005 to investigate the ocean structure and its changes from previous observations in 1985. We detected significant basin-average water property changes from 1985 to 2005. Apparent oxygen utilization increased below the thermocline by up to 6 mol kg-1 around the density of the central mode water (around 600 m). It appeared that the North Pacific intermediate water (around 800 m) was less dense in 2005 than in 1985 because of warming. From the decrease of the zonal gradient of the temperature and salinity around the North Pacific deep water (2500 - 4000 m) and lower circumpolar deep water (
ISSN:0148-0227
DOI:10.1029/2008JC004778