Collaborative Research: Aquatic Paleoclimate Proxy Records of Tropical Temperature Variability

合作研究：热带温度变化的水生古气候代理记录

• 批准号: 0502456
• 负责人: Josef Werne
• 金额: --
• 依托单位: University of Minnesota Duluth
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-15 至 2006-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0502456&HistoricalAwards=false
• 关键词: Collaborative; Research; Aquatic; Paleoclimate; Proxy

The award supports research to examine the robustness of the archeal membrane lipid biomarker, TEX86, as a new paleoclimate proxy. Specifically, the researchers will examine: 1) what environmental factors could potentially mask the apparent temperature signal in the proxy; 2) at what depth do the Crenarchaeota bacteria live within the water column. If they live deep in the water column, how can they possibly reflect a surface water temperature; and 3) how these compounds get buried in marine and lacustrine sediments. If successful, this highly risky research will help create a new proxy measurement that could have broad impact when applied to the analysis of climate over time and varying natural environments.

该奖项支持研究，以研究Archeal膜脂质生物标志物（Tex86）作为新的古气候代理的鲁棒性。具体而言，研究人员将检查：1）哪些环境因素可能会掩盖代理中明显的温度信号； 2）在水柱内，crenarchaeota细菌在什么深度。如果它们生活在水柱深处，他们如何才能反映地表水温； 3）这些化合物如何将其埋在海洋和湖泊沉积物中。如果成功的话，这项高度风险的研究将有助于创建一种新的代理测量，当随着时间的推移和自然环境变化时，该测量可能会产生广泛的影响。