Paleoceanography for future prediction : a possibility of climate mode jump with global warming

用于未来预测的古海洋学：全球变暖导致气候模式跳跃的可能性

• 批准号: 18101001
• 负责人: TADA Ryuji
• 金额: $ 69.89万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (S)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18101001/
• 关键词: 気候モードジャンプ; 東アジアモンスーン; 偏西風; 古海洋; 近未来予測; 環境変動; 古海洋学; モンスーン; オホーツク海; ベーリング海; 北太平洋中層水; 古気候; 温暖化; 急激な気候変動; 伽

Changes in behaviors of East Asian monsoons and westerly jet axis since the last interglacial period were reconstructed using piston cores retrieved from the NW Pacific, and their relation with millennial-scale climatic changes in the North Atlantic were examined. The results suggest that changes in the position of westerly jet played a role of linking changes in East Asian monsoons with climatic changes in the Northern Atlantic. The results further suggest that the phase relation between changes in the North Atlantic climate and East Asian monsoons reversed between the last glacial and the Holocene. Ventilation rate of North Pacific Intermediate Water also varied in association with these changes during the last glacial period. The results of the last interglacial reconstruction further suggest that westerly jet axis and East Asian monsoon front may shift northward in response to the global warming.

自从上一个冰川间时期以来，东亚季风和西风轴行为的变化使用从西北太平洋地区取回的活塞核重建，并检查了它们与北大西洋千年级气候变化的关系。结果表明，西风喷气机的位置的变化在将东亚季风的变化与北大西洋的气候变化联系起来方面发挥了作用。结果进一步表明，北大西洋气候和东亚季风的变化之间的相位关系逆转了最后一个冰川和全新世之间。在最后一个冰川时期，北太平洋中间水的通风速率与这些变化的相关性也有所不同。最后一次冰间重建的结果进一步表明，西北喷气轴和东亚季风前线可能会响应全球变暖而向北移动。

项目成果

A salinity-related occurrence of a novel alkenone and alkenoate in Late Pleistocene sediments from the Japan Sea

• DOI: 10.1016/j.orggeochem.2006.05.004
• 发表时间: 2006-09
• 期刊: Organic Geochemistry
• 影响因子: 3
• 作者: K. Fujine;Masanobu Yamamoto;R. Tada;Y. Kido

ターミネーションの気候変動

终止气候变化

• 发表时间: 2010
• 期刊: 第四紀研究
• 作者: P.Guan;M.Okazaki;T.Hirano;T.Hirooka;M.Nakazawa;横山祐典
• 通讯作者: 横山祐典

Millennial-scale oscillations of the westerly jet path during the last glacial period

• DOI: 10.1016/j.jseaes.2010.08.010
• 发表时间: 2011-04-02
• 期刊: JOURNAL OF ASIAN EARTH SCIENCES
• 影响因子: 3
• 作者: Nagashima, Kana;Tada, Ryuji;Hasegawa, Hitoshi
• 通讯作者: Hasegawa, Hitoshi

High-resolution Optical Dating of a Sediment Core from the central Okhotsk Sea.

鄂霍次克海中部沉积物核心的高分辨率光学测年。

• 发表时间: 2008
• 作者: Sugisaki S;Buylaert J-P;Muray A;Tsukamoto S;Nogi Y;Miura H;Sakar S;Iijima K;Sakamoto T
• 通讯作者: Sakamoto T

The late Pleistocene Radiolarians in the Bering Sea

白令海更新世晚期的放射虫

• 发表时间: 2007
• 作者: Itaki;T.;B-K. Khim;Sunghan Kim.;Uchida;M.;Katsuki;Tada;R.;et. al.
• 通讯作者: et. al.