Modern and Holocene Limnological Response to Climatic Gradients at the Western Edge of the Greenland Ice Sheet

现代和全新世湖泊学对格陵兰冰盖西缘气候梯度的响应

• 批准号: 0081226
• 负责人: Sherilyn Fritz
• 金额: $ 43.88万
• 依托单位: University of Nebraska-Lincoln
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-12-01 至 2004-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0081226&HistoricalAwards=false
• 关键词: Modern; Holocene; Limnological; Response; Climatic

This award is for a study to test the use of diatom-inferred conductivity as a proxy for fluctuations in P - E (precipitation minus evapotranspiration) for lakes adjacent to the western portion of the Greenland Ice Sheet. If robust, the investigator will be able to reconstruct the Holocene hydrologic history of a coastal region of West Greenland at sub-century scale, which in turn can contribute to evaluating hydrologic influences on marine and terrestrial systems over this time frame. Evaluation of coarser scale changes in P - E during the Holocene will be made from geomorphic studies of paleoshorelines. The study will use biological and geochemical proxies in lake sediments to reconstruct Holocene environmental history of three local regions of West Greenland at sub-centennial scale.

该奖项旨在奖励一项研究，该研究旨在测试使用硅藻推断的电导率作为格陵兰冰盖西部附近湖泊P - E（降水减去蒸散）波动的代理。如果可靠，研究者将能够在亚世纪尺度上重建西格陵兰岛沿海地区的全新世水文历史，这反过来又有助于评估这段时间内水文对海洋和陆地系统的影响。全新世时期P - E的粗尺度变化将通过古海岸线的地貌研究来评估。本研究将利用湖泊沉积物中的生物和地球化学指标，在亚百年尺度上重建西格陵兰岛三个局部地区的全新世环境史。