Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Science. 2003 Oct 31;302(5646):852-6.

Decadal variation of the surface water PCO2 in the western and central equatorial Pacific.

Author information

  • 1Lamont-Doherty Earth Observatory (LDEO) of Columbia University, Palisades, NY 10964, USA. taka@ldeo.columbia.edu

Abstract

The equatorial Pacific Ocean is one of the most important yet highly variable oceanic source areas for atmospheric carbon dioxide (CO2). Here, we used the partial pressure of CO2 (PCO2), measured in surface waters from 1979 through early 2001, to examine the effect on the equatorial Pacific CO2 chemistry of the Pacific Decadal Oscillation phase shift, which occurred around 1988 to 1992. During the decade before the shift, the surface water PCO2 (corrected for temperature changes and atmospheric CO2 uptake) in the central and western equatorial Pacific decreased at a mean rate of about -20 microatm per decade, whereas after the shift, it increased at about +15 microatm per decade. These changes altered the CO2 sink and source flux of the equatorial Pacific significantly.

PMID:
14593175
[PubMed]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Write to the Help Desk