Constraining The Connection Between The SW Indian Ocean Monsoon And North Atlantic Climate

限制西南印度洋季风与北大西洋气候之间的联系

• 批准号: 0117257
• 负责人: Franco Marcantonio
• 金额: $ 13万
• 依托单位: Tulane University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-10-01 至 2004-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0117257&HistoricalAwards=false
• 关键词: Constraining; Connection; Between; SW; Indian

Science Summary: This proposal requests support to test the hypothesis that the millennial changes in Oxygen Mimimum Zone intensity in the Arabian Sea are directly related to changes in the intensity of upwelling-favorable winds associated with the SW Indian Ocean monsoon. Past changes in monsoon-driven productivity will be traced by measuring a proxy (231Pa/230Th ratio) that is insensitive to sediment focusing and to changes in bottom water oxygen content. The study will be performed on sediment cores from the Pakistan margin.

科学总结：该提案要求支持测试假设，即阿拉伯海氧气最低区强度的千年变化与西南印度洋季风相关的上升有利风强度的变化直接相关。 季风驱动的生产力的过去的变化将跟踪测量代理（231 Pa/230 Th比），是不敏感的沉积物集中和底层水含氧量的变化。 这项研究将在巴基斯坦边缘的沉积物岩心上进行。