Last glacial maximum/last deglacial South Pacific interannual to decadal climate variability - Sub-seasonal reconstructions from Tahiti reef corals

末次盛冰期/末次冰消期南太平洋年际至十年间的气候变化——塔希提岛礁珊瑚的次季节重建

• 批准号: 28791619
• 负责人: Professor Dr. Gerold Wefer
• 金额: --
• 依托单位: Department of Earth Science
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/28791619?language=en
• 关键词: Last; glacial; maximum; last; deglacial

We suggest opening time-windows of interannual to decadal climate variability in the South Pacific during the last gfacial maximum and the last deglaciation, by analysing fossil reef corals from Tahiti. The corals have been recovered during IODP Expedition 310 (October- November 2005), a Mission Specific Platform Expedition implemented by the European Consortium for Ocean Research Drilling (ECORD). A member of the science party is Thomas Felis. Individual corals grew continuously for periods of >100 years! We plan to generate subseasonally resolved reconstructions of changes in both temperature and hydrologic balance at the sea surface during time intervals between 21 to 10 kyr ago, based on oxygen isotope and Sr/Ca variations in coral skeletons. This study will provide unique insights into the dynamics of natural modes of atmosphere/ocean variability, such as the El Nino-Southern Oscillation and the Pacific Decadal Oscillation, under boundary conditions different from today, and addresses a major scientific objective of IODP Expedition 310. Comparing such coral based reconstructions with state-of-the-art climate model simulations might help to assess the validity of future greenhouse projections.

我们建议通过分析塔希提岛的珊瑚化石，打开南太平洋在最后一次冰川盛期和最后一次冰消期期间的年际至十年间气候变化的时间窗口。这些珊瑚是在 IODP 310 号远征（2005 年 10 月至 11 月）期间回收的，这是由欧洲海洋研究钻探联盟 (ECORD) 实施的一项特定任务平台远征。科学党的成员是托马斯·费利斯。单个珊瑚连续生长超过 100 年！我们计划根据珊瑚骨骼中的氧同位素和 Sr/Ca 变化，对 21 至 10 kyr 之前的时间间隔内海面温度和水文平衡变化进行次季节解析重建。这项研究将为大气/海洋变化自然模式的动态提供独特的见解，例如厄尔尼诺南方涛动和太平洋十年涛动，在与今天不同的边界条件下，并解决 IODP 310 号探险的主要科学目标。将这种基于珊瑚的重建与最先进的气候模型模拟进行比较可能有助于评估未来温室预测的有效性。

项目成果

IODP Expedition 310 Reconstructs Sea Level, Climatic, and Environmental Changes in the South Pacific during the Last Deglaciation

IODP 310 号探险队重建了末次冰消期期间南太平洋的海平面、气候和环境变化

• DOI: 10.2204/iodp.sd.5.01.2007
• 发表时间: 2007
• 期刊: Scientific Drilling
• 影响因子: 1.2
• 作者: Camoin; G.F.; Iryu; Y.; McInroy; D.B.; IODP Expedition 310 Scientists including Felis; T.
• 通讯作者: T.

Evidence for tropical South Pacific climate change during the Younger Dryas and the Bølling–Allerød from geochemical records of fossil Tahiti corals

来自大溪地珊瑚化石地球化学记录的新仙女木期和贝尔林阿勒德期热带南太平洋气候变化的证据

• DOI: 10.1016/j.epsl.2009.09.011
• 发表时间: 2009
• 期刊: Earth and Planetary Science Letters
• 影响因子: 5.3
• 作者: Asami; R.; Felis; T.; Deschamps; P.; Hanawa; K.; Iryu; Y.; Bard; E.; Dur; N.; Murayama; M.
• 通讯作者: M.

Proceedings of the IODP, 310

IODP 会议记录，310

• DOI: 10.2204/iodp.proc.310.2007
• 发表时间: 2007
• 作者: Camoin; G.F.; Iryu; Y.; McInroy; D.B.; Expedition 310 Scientists including Felis; T.
• 通讯作者: T.