Collaborative Research: Reconstructing Extreme Southern California Flood Events from Gray Flood Deposits in Santa Barbara Sediments, Since 5,000 B.P

合作研究：利用圣巴巴拉沉积物中的灰色洪水沉积物重建距今 5000 年以来的南加州极端洪水事件

• 批准号: 9807745
• 负责人: Arndt Schimmelmann
• 金额: $ 11.41万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-15 至 2001-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9807745&HistoricalAwards=false
• 关键词: Collaborative; Research; Reconstructing; Extreme; Southern

9807745 Schimmelmann This ESH project will examine fine-grained laminae derived from floods in sediment cores from the Santa Barbara Basin, as a tracer of extreme precipitation periods during the last 5000 years. Sediment analysis including X-radiography, particle size distribution and clay mineralogy will be used to distinguish flood deposits from distal turbidites. Radiocarbon dating will be used to produce a chronology of the flood events, and the resulting record will be compared with other regional climate records, such as tree-ring indices, to interpret the long-term record of climate change in southern California at annual, decadal, and century-scale resolution.

9807745 Schimmelmann 该 ESH 项目将检查圣巴巴拉盆地沉积物岩芯洪水产生的细粒纹层，作为过去 5000 年极端降水时期的示踪剂。 沉积物分析（包括 X 射线照相、粒度分布和粘土矿物学）将用于区分洪水沉积物和远端浊积岩。 放射性碳测年将用于生成洪水事件的年表，所得记录将与其他区域气候记录（例如树木年轮指数）进行比较，以解释南加州每年、十年和百年尺度的分辨率。