Collaborative Research: High-Resolution, Multi-Species Reconstructions of Greater Yellowstone Region Paleoclimates Using Tree-Ring Anatomy

合作研究：利用树木年轮解剖学对大黄石地区古气候进行高分辨率、多物种重建

• 批准号: 2303480
• 负责人: Matthew Bekker
• 金额: $ 5.24万
• 依托单位: Brigham Young University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-07-01 至 2026-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2303480&HistoricalAwards=false
• 关键词: Collaborative; Research; Resolution; Multi; Species

This project aims to perform a millennial-length, multi-metric synthesis of sub-annual paleoclimate and extreme events in the Greater Yellowstone Ecoregion (GYE) through the use of tree-ring methodologies. The researchers will: (1) generate millennial-length chronologies of quantitative wood anatomy (QWA) metrics from two co-occurring subalpine/treeline tree species; (2) produce regional, millennial-length reconstructions of sub-annual temperature variability; and (3) analyze connections between climate variability and external forcings. The creation of a millennial-length climate history derived from QWA metrics may provide new insights into important high-elevation ecosystems of the western United States (U.S.) and further contextualize climate change for the GYE. Analysis between reconstructed sub-annual temperature data with currently available reconstruction and model data will aid understanding of complex climate interrelationships for the GYE and the western U.S. more broadly and inform assessments of current and future conditions.Information generated by this research will aid local, national, and international climatologists, conservation biologists, and land managers to better predict future climate change impacts for the GYE and western U.S. more broadly and provide data to the Whitebark Pine Ecosystem Foundation (WPEF), U.S. Forest Service, and other governmental and non-governmental agencies that have interest in whitebark-specific responses to climate change and ecological disturbance. The potential Broader Impacts (B.I.) include support for the careers of several early-career female scientists as well as resources toward undergraduate education, K-12 activities, and community engagement. The project provides opportunities for scientific education and training through mentorship, independent and summer research programs, and community outreach, collaboration, and education, including programs including the North American Dendroecological Fieldweek, the University of Idaho K-12 STEM outreach program, and the Kentucky Academy of Science.The research will also help contextualize over 1,000 years of climate variability and anomalies in the Greater Yellowstone Ecoregion (GYE) and provide insight into intra-annual variability and responses to climatological and ecological disturbance events, thereby informing future regional- and large-scale climate models and additional GYE research questions.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目旨在通过使用树环方法在大黄石生态区（GYE）中对次年古气候和极端事件进行千禧年长度的多米综合。研究人员将：（1）产生来自两个同时发生的亚α/treline树种的定量木材解剖（QWA）指标的千禧年长期； （2）产生次年度温度变化的区域，千禧一代重建； （3）分析气候变异性与外部强迫之间的联系。从QWA指标中得出的千禧一代气候历史的创造可能会为西方西部（美国）重要的高海拔生态系统（美国）提供新的见解，并进一步使GYE的气候变化背景化。 Analysis between reconstructed sub-annual temperature data with currently available reconstruction and model data will aid understanding of complex climate interrelationships for the GYE and the western U.S. more broadly and inform assessments of current and future conditions.Information generated by this research will aid local, national, and international climatologists, conservation biologists, and land managers to better predict future climate change impacts for the GYE and western U.S. more broadly and provide data to the Whitebark Pine生态系统基金会（WPEF），美国森林服务局以及其他对怀特巴克对气候变化和生态障碍的反应感兴趣的政府和非政府机构。潜在的更广泛的影响（B.I.）包括对几位早期女性科学家的职业以及用于本科教育，K-12活动和社区参与的资源的支持。 The project provides opportunities for scientific education and training through mentorship, independent and summer research programs, and community outreach, collaboration, and education, including programs including the North American Dendroecological Fieldweek, the University of Idaho K-12 STEM outreach program, and the Kentucky Academy of Science.The research will also help contextualize over 1,000 years of climate variability and anomalies in the Greater Yellowstone Ecoregion (GYE) and provide insight into intra-annual对气候和生态干扰事件的可变性和反应，从而为未来的区域和大规模气候模型以及其他GYE研究问题告知。该奖项反映了NSF的法定任务，并被认为值得通过基金会的知识分子优点和更广泛的影响审查标准通过评估来获得支持。