Collaborative Research: P2C2--Elucidating the Drivers and Consequences of Changes in Atmospheric Rivers from the Last Glacial Maximum to the Present Day

合作研究：P2C2——阐明从末次盛冰期至今大气河流变化的驱动因素和后果

• 批准号: 1903600
• 负责人: Christopher Skinner
• 金额: $ 22.43万
• 依托单位: University of Massachusetts Lowell
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-07-15 至 2023-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1903600&HistoricalAwards=false
• 关键词: Collaborative; Research; P2C2; Elucidating; Drivers

This project aims to investigate the response of atmospheric rivers (ARs) to changes in the mean climate state and radiative forcing. This will be accomplished using a new set of paleoclimate simulations from the Community Earth System Model (CESM2) with the goal to understand the processes that drive past, present and future ARs responses, and evaluate their impact on regional hydroclimates and ecosystems. The researchers plan to conduct eight different experiments with the CESM2 in which ice sheets, orbital configurations, meltwater fluxes and carbon dioxide concentrations will be varied independently since the last glacial maximum. An ARs tracking algorithm will be implemented to objectively identify ARs across climate states and then used to quantify the distribution, frequency, intensity, and seasonal character of ARs changes and their impact on precipitation. The project is organized about three specific objectives: 1) develop a robust AR tracking algorithm for use in climate change studies; 2) understand the relationships between ARs and climate system forcings; and 3) quantify the contribution of AR changes to regional hydroclimate over the last glacial-interglacial transition. The potential Broader Impacts include a better understanding of the role of ARs within the climate system. An international collaboration is planned to conduct an official Atmospheric River Tracking Method Intercomparison activity with the resulting AR catalogues being archived and made publicly available. The project supports the training of a graduate student and a Postdoctoral scholar. In addition, a professional development workshop for regional high school teachers will be organized as part of an ongoing program at the University of Massachusetts Lowell. A set of modules centered on the physics of the climate system and the interdisciplinary applications of climate science will be developed and made available to the workshop participants.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.

该项目旨在研究大气河流（AR）对平均气候状态和辐射强迫变化的响应。这将使用社区地球系统模型 (CESM2) 中的一组新的古气候模拟来完成，目的是了解驱动过去、现在和未来 AR 响应的过程，并评估其对区域水文气候和生态系统的影响。研究人员计划用CESM2进行八个不同的实验，其中冰盖、轨道结构、融水通量和二氧化碳浓度将自上次盛冰期以来独立变化。将实施 AR 跟踪算法，以客观地识别跨气候状态的 AR，然后用于量化 AR 变化的分布、频率、强度和季节特征及其对降水的影响。该项目围绕三个具体目标进行组织：1）开发强大的 AR 跟踪算法，用于气候变化研究； 2）了解AR与气候系统强迫之间的关系； 3) 量化末次冰期-间冰期转变期间 AR 变化对区域水文气候的贡献。潜在的更广泛影响包括更好地了解 AR 在气候系统中的作用。计划开展国际合作，开展正式的大气河追踪方法比对活动，并将生成的 AR 目录存档并公开发布。该项目支持培养一名研究生和一名博士后学者。此外，作为马萨诸塞州洛厄尔大学正在进行的计划的一部分，还将为地区高中教师组织一个专业发展研讨会。将开发一套以气候系统物理学和气候科学跨学科应用为中心的模块，并提供给研讨会参与者。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Atmospheric River Contributions to Ice Sheet Hydroclimate at the Last Glacial Maximum

末次盛冰期大气河对冰盖水文气候的贡献

• DOI: 10.1029/2022gl101750
• 发表时间: 2023
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Skinner, Christopher B.;Lora, Juan M.;Tabor, Clay;Zhu, Jiang
• 通讯作者: Zhu, Jiang

Atmospheric river changes shaped mid-latitude hydroclimate since the mid-Holocene

• DOI: 10.1016/j.epsl.2020.116293
• 发表时间: 2020-07
• 期刊: Earth and Planetary Science Letters
• 影响因子: 5.3
• 作者: C. Skinner;J. Lora;A. Payne;C. Poulsen

The Hydrologic Cycle and Atmospheric Rivers in CESM2 Simulations of the Last Glacial Maximum

CESM2 末次盛冰期模拟中的水文循环和大气河流

• DOI: 10.1029/2023gl104805
• 发表时间: 2023
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Lora, J. M.;Skinner, C. B.;Rush, W. D.;Baek, S. H.
• 通讯作者: Baek, S. H.