Insolation and Upwelling in the Northeast Pacific during the Holocene: Quantifying the Link with Cd/Ca Ratios in Estuarine Foraminifera

全新世东北太平洋的日照和上升流：量化与河口有孔虫 Cd/Ca 比率的联系

• 批准号: 9402372
• 负责人: Alexander van Geen
• 金额: $ 22.6万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-08-15 至 1997-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9402372&HistoricalAwards=false
• 关键词: Insolation; Upwelling; Northeast; Pacific; during

PIs will reconstruct the history of changes in the intensity of equatorward winds over NE Pacific since the last climatic optimum 9 K.y. ago. These data will serve to test the general circulation models of the past climate that suggests that upwelling-favorable winds have weakened since the last climatic optimum due to decline in the summer insolation over northern Hemisphere. Dissolved cadmium concentrations in foraminiferal shells will be used as proxy for upwelling in core from estuaries in Humboldt and Coos Bays, NW United States.

PI 将重建自 9 年前最后一次气候最佳气候以来东北太平洋赤道风强度变化的历史。前。 这些数据将用于测试过去气候的总体环流模型，该模型表明，由于北半球夏季日照的减少，自上次气候最佳状态以来，上升流有利风已经减弱。 有孔虫壳中溶解的镉浓度将用作美国西北部洪堡和库斯湾河口核心上升流的指标。