کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4537092 | 1626474 | 2010 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Changes in water properties around North Pacific intermediate water between the 1980s, 1990s and 2000s
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
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چکیده انگلیسی
We detected temperature (salinity) decreases on the neutral density surfaces above the salinity minimum and increases below throughout the western North Pacific subtropical gyre (25âN-40âN, west of 170âW) by comparing World Ocean Circulation Experiment (WOCE) hydrographic sections from the 1980s, 1990s, and 2000s. The temperature (salinity) changes around the salinity minimum were associated with an apparent oxygen utilization (AOU) increase, and could not be explained by an increase of the subpolar input. These property changes were due to a density decrease of the salinity minimum. Furthermore, similar changes in temperature (salinity) were detected along 165âE as a 12-year trend from 1996 to 2007. This suggests that the changes evident in the comparison of the WOCE sections are the representative of changes at the intermediate depths in the last decade. This pattern was not detected in the eastern subtropical gyre (25âN-40âN, east of 170âW) and along 47âN, where the AOU increase due to ventilation reduction has been reported. Along 47âN, changes in temperature, salinity and AOU from 1999 to 2007 were opposite to those from 1985 to 1999.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Deep Sea Research Part II: Topical Studies in Oceanography - Volume 57, Issues 13â14, July 2010, Pages 1177-1187
Journal: Deep Sea Research Part II: Topical Studies in Oceanography - Volume 57, Issues 13â14, July 2010, Pages 1177-1187
نویسندگان
Shinya Kouketsu, Masao Fukasawa, Daisuke Sasano, Yuichiro Kumamoto, Takeshi Kawano, Hiroshi Uchida, Toshimasa Doi,