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Collaborative Research: An Eocene perspective on future recovery rates of climate and ocean chemistry

合作研究：从始新世角度看待气候和海洋化学的未来恢复率

基本信息

批准号：
1657848
负责人：
Baerbel Hoenisch
金额：
$ 8.54万
依托单位：
Columbia University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2017
资助国家：
美国
起止时间：
2017-03-01 至 2021-02-28
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1657848&HistoricalAwards=false
关键词：
Collaborative Research Eocene perspective future

项目摘要

This projects provides a case study of a past climate event, called the Eocene Thermal Maximum-2 to constrain natural recovery rates of climate and ocean chemistry following massive carbon input into Earth's surface reservoirs. The study will allow new insight into past climate and ocean acidification processes that were hitherto unexplored, hence promoting the progress of science and advancing the field of climatology. Such insight is essential to providing the public, scientific leaders, and policy makers with a better understanding of the consequences of unabated CO2 emissions for global climate, ocean carbonate chemistry, and marine ecosystems. Moreover, the project integrates research and educational activities by introducing this information directly into secondary school and college curricula and popular journals. The project fosters education for graduate and undergraduate students from ethnically diverse populations, while conducting cutting-edge research at the same time. The outcome of this study will advancethe understanding of the Earth system and hence improve forecasts of future climate change, which is beneficial to society.Specifically, proxy records will be generated and used (d13C, d18O, %CaCO3, B/Ca, d11B) in combination with numerical modeling to determine natural recovery times for carbon cycle processes, temperature, and surface ocean acidification. The study will (1) provide fundamental insight into negative climate-carbon cycle feedbacks, (2) address important gaps in data coverage and understanding of Eocene hyperthermals, and (3) constrain critical parameter values needed for future climate-carbon cycle simulations.

该项目提供了对过去气候事件的案例研究，称为始新世热最大值-2，以限制大量碳输入地球表面水库后气候和海洋化学的自然恢复率。这项研究将使人们能够对迄今为止尚未探索的过去气候和海洋酸化过程有新的认识，从而促进科学进步，推动气候学领域的发展。这样的洞察力对于让公众、科学领导者和政策制定者更好地了解二氧化碳排放对全球气候、海洋碳酸盐化学和海洋生态系统的影响至关重要。此外，该项目通过将这些信息直接引入中学和大学课程以及流行期刊，整合了研究和教育活动。该项目促进来自不同种族人群的研究生和本科生的教育，同时进行前沿研究。本研究的结果将促进对地球系统的理解，从而改善对未来气候变化的预测，这对社会是有益的。具体来说，将生成并使用代用记录（d13 C，d18 O，%CaCO3，B/Ca，d11 B），并结合数值模拟来确定碳循环过程，温度和海洋表面酸化的自然恢复时间。该研究将（1）提供对负气候碳循环反馈的基本见解，（2）解决数据覆盖和理解始新世高温的重要差距，（3）限制未来气候碳循环模拟所需的关键参数值。