Analysis of biogeochemical changes in the North Pacific using long-term time-series data of dissolved oxygen

利用溶解氧的长期时间序列数据分析北太平洋生物地球化学变化

• 批准号: 19510021
• 负责人: ISHII Masao
• 金额: $ 2.83万
• 依托单位: Japan, Meteorological Research Institute
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19510021/
• 关键词: 溶存酸素; 酸素センサー; 物質循環; 気候変動; 北太平洋; 海洋観測; 気候変化

Data of dissolved oxygen in the western North Pacific were compiled and quality-checked by a statistical technique. The errors due to interpolation of discrete oxygen data were also evaluated by comparing with vertical continuous data obtained by a new rapid-response oxygen sensor that was introduced and examined in this study. In the northern subtropical and subarctic zones, significant trend of oxygen decreases were determined at depths between 500m and 2000m. These decreasing trend are mainly attributable to the decrease in density that is associated with ocean warming, but those at the depth around 1000m is ascribed to the changes in the ocean circulation.

通过统计技术对北太平洋西部溶解氧的数据进行了汇编和质量检查。通过与本研究中引入和检查的新型快速响应氧传感器获得的垂直连续数据进行比较，还评估了由于离散氧数据插值而产生的误差。在北亚热带和亚北极地区，在500m至2000m深度之间确定了显着的氧气减少趋势。这些下降趋势主要归因于海洋变暖导致的密度下降，但1000m左右深度的密度下降则归因于海洋环流的变化。

项目成果

Using altimetry to help explain patchy changes in hydrographic carbon measurements

使用高度测量来帮助解释水文碳测量中的不均匀变化

• 发表时间: 2009
• 期刊: Journal of Geophysical Research 114
• 作者: Rodgers;Keith
• 通讯作者: Keith

東経137度における表面全炭酸濃度の増加と酸性化

东经137度地表总碳酸盐浓度增加和酸化

• 发表时间: 2009
• 作者: Ishii;Masao;石井雅男
• 通讯作者: 石井雅男

Oxygen. In: North Pacific Ecosystem Status Report II. North Pacific Marine Science Organization

氧。

• 作者: Daisuke Sasano;Oyashio
• 通讯作者: Oyashio

Oxygen decrease in the western Pacific along 165E.

西太平洋沿东经 165° 氧气减少。

• 发表时间: 2009
• 作者: Shinya Kouketsu;Masao Fukasawa;Daisuke Sasano;Yuichiro Kumamoto;Takeshi Kawano;Hiroshi Uchida;Toshimasa Doi;Daisuke Sasano
• 通讯作者: Daisuke Sasano

Changes in water properties around North Pacific intermediate water between the 1980s, 1990s and 2000s.

20 世纪 80 年代、1990 年代和 2000 年代北太平洋中间水周围水性质的变化。

• 期刊: Deep-Sea Research II (in press)
• 作者: Shinya Kouketsu;Masao Fukasawa;Daisuke Sasano;Yuichiro Kumamoto;Takeshi Kawano;Hiroshi Uchida;Toshimasa Doi
• 通讯作者: Toshimasa Doi