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Persistently strong oceanic CO2 sink in the western subtropical North Pacific
| Title: | Persistently strong oceanic CO2 sink in the western subtropical North Pacific |
| Authors: | Midorikawa, Takashi Browse this author | | Nemoto, Kazuhiro Browse this author | | Kamiya, Hitomi Browse this author | | Ishii, Masao Browse this author | | Y. Inoue, Hisayuki5 Browse this author →KAKEN DB |
| Authors(alt): | Yoshikawa Inoue, Hisayuki5 |
| Keywords: | partial-pressure | | surface | | waters | | carbon |
| Issue Date: | 11-Mar-2005 |
| Publisher: | American Geophysical Union. (AGU) |
| Journal Title: | Geophysical Research Letters |
| Volume: | 32 |
| Start Page: | L05612 |
| Publisher DOI: | 10.1029/2004GL021952 |
| Abstract: | The long-term trend of the partial pressure of CO2 in surface seawater (pCO2sea) in late-January to early-February during the past two decades was examined in the western North Pacific along the repeat line at 137°E from 3°N to 34°N. The growth rate of pCO2 sea at each 1º in latitude ranged from +1.3 ± 0.2 to +2.1 ± 0.3 μatm yr-1, and the average was +1.7 ± 0.2 μatm yr-1. The growth of pCO2 sea is attributable mainly to the uptake of anthropogenic CO2 in surface water and, to a small extent, to the regional changes in sea surface temperature (SST). The net air-to-sea CO2 flux in January–February that accounts for 40 to 60% of the annual flux remained at a similar level in the subtropical regions (7ºN to 34ºN). In the equatorial region (3ºN to 6ºN), however, a slight increase in the CO2 efflux was seen. |
| Description: | An edited version of this paper was published by AGU. Copyright (2005) American Geophysical Union. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/906 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 吉川 久幸
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