Persistently strong oceanic CO2 sink in the western subtropical North Pacific

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概要

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• An edited version of this paper was published by AGU. Copyright (2005) American Geophysical Union.The long-term trend of the partial pressure of CO2 in surface seawater (pCO2sea) inlate-January to early-February during the past two decades was examined in the westernNorth Pacific along the repeat line at 137°E from 3°N to 34°N. The growth rate ofpCO2sea at each 1º in latitude ranged from +1.3 ± 0.2 to +2.1 ± 0.3 μatm yr-1, and theaverage was +1.7 ± 0.2 μatm yr-1. The growth of pCO2sea is attributable mainly to theuptake of anthropogenic CO2 in surface water and, to a small extent, to the regionalchanges in sea surface temperature (SST). The net air-to-sea CO2 flux inJanuary–February that accounts for 40 to 60% of the annual flux remained at a similarlevel in the subtropical regions (7ºN to 34ºN). In the equatorial region (3ºN to 6ºN),however, a slight increase in the CO2 efflux was seen.

• American Geophysical Union. (AGU)の論文
• 2005-03-11

著者

• Midorikawa T

  Japan Meteorological Agency Tokyo Jpn

関連論文

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• Interannual variation in Neocalanus biomass in the Oyashio waters of the western North Pacific
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• Increased Stratification and Decreased Lower Trophic Level Productivity in the Oyashio Region of the North Pacific : A 30-Year Retrospective Study
• Effects of Ligand Speciation on Determinations of the Complexing Abilities of Strong Ligands in Natural Waters

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