Collaborative Research: CEDAR--Exploring the Response of the Magnetosphere to Terrestrial Weather

合作研究：CEDAR——探索磁层对陆地天气的响应

• 批准号: 2223930
• 负责人: Federico Gasperini
• 金额: $ 28.9万
• 依托单位: ATMOSPHERIC & SPACE TECHNOLOGY RESEARCH ASSOCIATES, L.L.C.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2025-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2223930&HistoricalAwards=false
• 关键词: Collaborative; Research; CEDAR; Exploring; Response

The extent to which terrestrial meteorology can influence the Mesosphere-Ionosphere-Thermosphere system (MIT, ca. 70-500 km altitudes) across a wide range of spatial and temporal scales is an important discovery of the past two decades. Sudden stratospheric warmings (SSWs) are prominent events that couple dynamical variability in the lower atmosphere with upper atmosphere perturbations. This project will explore novel fundamental connections in the coupled MIT system leveraging the state-of-the-art and fully two-way coupled Multiscale Atmosphere-Geospace Environment (MAGE) model, and ground- (SuperMAG) and space-based (GOES-14 and -15) magnetic field observations. Understanding the sources of ionospheric and magnetospheric variability is a necessary first step in developing predictive capabilities of critical importance to the operation of navigation and communications systems that support our modern society. This research will result in a better understanding of how terrestrial weather interacts with the ionosphere to produce variability in electric fields that redistribute plasma at higher levels in the upper atmosphere. In addition, the research effort will broaden participation by involving and training a UCAR Significant Opportunities in Atmospheric Research and Science (SOARS) protégé from the historically underrepresented communities in a multi-year mentoring and career development experience. This collaborative award is aimed at establishing and quantifying the extent to which lower atmospheric forcing can impact the spatial and day-to-day variability of the magnetosphere and explore what coupling mechanisms may be at play. Three science questions will be investigated: 1) To what extent can Sudden Stratospheric Warmings (SSWs) impact the spatial-temporal variability of the upper ionosphere and magnetosphere? 2) How well does MAGE approximate the SSW-induced variability observed in the magnetosphere? And 3) What roles do large-scale waves play in dynamically coupling this lower atmospheric variability into the magnetosphere? This study will for the first time: (1) establish and quantify the extent to which large-scale lower atmospheric forcing can impact the spatial and temporal variability of the magnetosphere and (2) explore what coupling mechanisms may be at play and elucidate the contribution of lower atmospheric disturbances in coupling terrestrial weather with the entire MIT system, thus addressing outstanding issues of critical importance to both the CEDAR and GEM communities.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.

陆地气象学可以在广泛的空间和时间尺度上影响中层-电离层-热层系统（MIT，约70-500公里高度）的程度是过去二十年平流层突然变暖（SSW）的一个重要发现。 ) ) 是将低层大气的动态变化与高层大气扰动耦合起来的重要事件，该项目将利用 MIT 系统探索新的基本联系。最先进的完全双向耦合的多尺度大气-地球空间环境 (MAGE) 模型，以及地面 (SuperMAG) 和天基（GOES-14 和 -15）磁场观测了解电离层的来源。磁层变率是发展预测能力的必要的第一步，这对于支持我们现代社会的导航和通信系统的运行至关重要。这项研究将有助于更好地了解陆地天气与电离层的相互作用。产生电场的变化，从而在高层大气中重新分布等离子体。此外，该研究工作还将通过吸收和培训来自历史上代表性不足的社区的 UCAR 大气研究和科学重大机会 (SOARS) 门徒来扩大参与范围。该奖项合作旨在确定和量化较低的大气强迫对磁层空间和日常变化的影响程度，并探索可能的耦合机制。将研究三个科学问题：1）平流层突然变暖（SSW）在多大程度上影响上层电离层和磁层的时空变化？ 3）大尺度波在将这种较低的大气变化动态耦合到磁层中发挥什么作用？这项研究将首次：（1）确定并量化大尺度波的程度？大气强迫可以影响磁层的空间和时间变化；(2)探索可能发挥作用的耦合机制，并阐明低层大气扰动在陆地天气与整个麻省理工学院系统耦合中的贡献，从而解决对磁层影响至关重要的突出问题。 CEDAR 和 GEM 社区。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。