Collaborative Research: A Southern Mid-Latitude Perspective on the Last Ice Age Based on Be-10 Moraine Chronologies

合作研究：基于 Be-10 冰碛年表的南方中纬度地区关于最后一个冰河时代的观点

• 批准号: 0745781
• 负责人: Michael Kaplan
• 金额: $ 13.82万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-07-15 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0745781&HistoricalAwards=false
• 关键词: Collaborative; Research; Southern; Mid; Latitude

This award will support the collection and analyses of samples from the geomorphic record of South Island, New Zealand. The project objectives tackle the critical problem of what causes ice ages in the Southern Hemisphere, and how the observed climate changes compare with those in the Northern Hemisphere. Personnel involved come from the Lamont-Doherty Earth Observatory of Columbia University and University of California Berkeley. The investigators will work in collaboration with geomorphologists, modelers, ecologists, and glacial and climate experts, which includes scientists in New Zealand. The methods to be employed are state-of-the-art techniques in cosmogenic surface exposure dating, geomorphic mapping, and glacial modeling. The new terrestrial record of past glacial behavior, tied with secure chronologies, will provide insight into climate changes in the New Zealand and how they compare with those in the Northern Hemisphere and Southern Ocean. Such comparisons will be used to test models of ice-age climate. Understanding the causes of ice ages is among the most important goals in climate science. The results will be particularly useful to the geomorphic community, as they will provide a high-resolution history of how this terrain and this part of the world responds to climate forcing. Broader impacts include the education of graduate students, undergraduate and high school assistants, and development of junior scientists. Major findings will be presented to the staff at one of the busiest national parks in the world. The new knowledge will be garnered with scientists in New Zealand, who are developing high-resolution maps that can be used as a template to archive geomorphic and geochronologic data. The research involves international collaborations between researchers towards the start of their careers and hence will facilitate long-term relations. The results will be of interest to a variety of Earth Science disciplines including but limited to global climate change, paleoceanography, geochronology, geomorphology, and glacial and climate modeling.

该奖项将支持新西兰南岛地貌记录样本的收集和分析。该项目的目标解决了导致南半球冰河时代的关键问题，以及观察到的气候变化与北半球的气候变化如何比较。参与人员来自哥伦比亚大学拉蒙特-多尔蒂地球观测站和加州大学伯克利分校。研究人员将与地貌学家、建模师、生态学家以及冰川和气候专家（其中包括新西兰的科学家）合作。所采用的方法是宇宙成因表面暴露测年、地貌测绘和冰川建模方面最先进的技术。过去冰川行为的新陆地记录与可靠的年表相结合，将有助于深入了解新西兰的气候变化以及它们与北半球和南大洋气候变化的比较。此类比较将用于测试冰河时代气候模型。了解冰河时代的原因是气候科学最重要的目标之一。研究结果对地貌界特别有用，因为它们将提供有关该地形和世界这一部分如何响应气候强迫的高分辨率历史。更广泛的影响包括研究生、本科生和高中助教的教育以及初级科学家的发展。主要发现将提交给世界上最繁忙的国家公园之一的工作人员。新知识将由新西兰的科学家收集，他们正在开发高分辨率地图，可用作存档地貌和地质年代数据的模板。该研究涉及研究人员在职业生涯开始时的国际合作，因此将促进长期关系。研究结果将引起各种地球科学学科的兴趣，包括但不限于全球气候变化、古海洋学、地质年代学、地貌学以及冰川和气候建模。

项目成果

In situ cosmogenic 10Be production-rate calibration from the Southern Alps, New Zealand

• DOI: 10.1016/j.quageo.2009.12.001
• 发表时间: 2010-08-01
• 期刊: QUATERNARY GEOCHRONOLOGY
• 影响因子: 2.7
• 作者: Putnam, A. E.;Schaefer, J. M.;Kelley, S. E.
• 通讯作者: Kelley, S. E.

Glacier retreat in New Zealand during the Younger Dryas stadial

• DOI: 10.1038/nature09313
• 发表时间: 2010-09-09
• 期刊: NATURE
• 影响因子: 64.8
• 作者: Kaplan, Michael R.;Schaefer, Joerg M.;Doughty, Alice M.
• 通讯作者: Doughty, Alice M.

The anatomy of long-term warming since 15 ka in New Zealand based on net glacier snowline rise

• DOI: 10.1130/g34288.1
• 发表时间: 2013-08-01
• 期刊: GEOLOGY
• 影响因子: 5.8
• 作者: Kaplan, Michael R.;Schaefer, Joerg M.;Anderson, Brian
• 通讯作者: Anderson, Brian

The Southern Glacial Maximum 65,000 years ago and its Unfinished Termination

• DOI: 10.1016/j.quascirev.2015.02.009
• 发表时间: 2015-04
• 期刊: Quaternary Science Reviews
• 影响因子: 4
• 作者: J. Schaefer;A. Putnam;G. Denton;M. Kaplan;S. Birkel;A. Doughty;Sam Kelley;D. Barrell;Robert C. Finkel;G. Winckler;Robert F. Anderson;U. Ninneman;S. Barker;R. Schwartz;B. G. Andersen;C. Schluechter

Mismatch of glacier extent and summer insolation in Southern Hemisphere mid-latitudes

• DOI: 10.1130/g36477.1
• 发表时间: 2015-05-01
• 期刊: GEOLOGY
• 影响因子: 5.8
• 作者: Doughty, Alice M.;Schaefer, Joerg M.;Schwartz, Roseanne
• 通讯作者: Schwartz, Roseanne