Collaborative Research: Temperature reconstruction of the western equatorial Pacific thermocline during the last ~2000 years: a paleo perspective for modern observations

合作研究：近2000年西赤道太平洋温跃层的温度重建：现代观测的古视角

• 批准号: 0902977
• 负责人: Yair Rosenthal
• 金额: $ 18.53万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-15 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0902977&HistoricalAwards=false
• 关键词: Collaborative; Research; Temperature; reconstruction; western

Funds are provided for the PIs to reconstruct thermocline hydrography in the Western Pacific Warm Pool/Indonesian Seas spanning the lat 2000 years of the late Holocene. The existing sediment cores have high sedimentation rates and the proxy records can be compared to the instrumental record. The proposed work will involve stable-isotopic anlayses and Mg/Ca ratios on planktic foraminifera as well as benthic foraminifera H. balthica, for which the study will refine the existing Mg/Ca-temperature calibration. In addition, a Cd/Ca calibration for this benthic species will be established. The study, if it is able to better characterize the upper-ocean hydrography in the Indonesian Seas will lead to a greater understanding of late Holocene climate change in the Western Pacific warm pool. The work is considered to have a modest risk but a high return, if it succeeds in its objectives.Broader impacts include support of a female graduate student who will conduct 300 Mg/Ca analyses. Part time undergraduate student support is also included at SUNY Albany for basic lab tasks. Understanding of the long-term ENSO dynamics would be important for other workers and modelers alike.

为PI提供了资金，用于重建西太平洋温暖池/印尼海洋，跨越了全新世的2000年。现有的沉积物芯具有高沉积率，可以将代理记录与工具记录进行比较。拟议的工作将涉及浮游有孔虫以及底栖有孔虫H. balthica的稳定分离式Anlayses和Mg/ca比率，为此，该研究将完善现有的MG/Ca-temperature Calibration。另外，将建立该底栖物种的CD/CA校准。这项研究能够更好地表征印尼海洋上海上的水文学，将使西太平洋温暖池中全新后期气候变化有更深入的了解。这项工作被认为具有适度的风险，但如果其在其目标方面取得了成功，则有很高的回报。Broader的影响包括对将进行300 mg/ca分析的女性研究生的支持。 SUNY Albany还包括兼职本科生的支持，以完成基本实验室任务。对长期ENSO动态的理解对于其他工人和建模者都很重要。