Collaborative Research: CEDAR: Swarm over Poker 2023--An Auroral System-Science Campaign Exemplar of Archiving and Aharing Heterogeneously-Derived Data Products

合作研究：CEDAR：Swarm over Poker 2023——极光系统科学运动归档和共享异构数据产品的范例

• 批准号: 2329981
• 负责人: Leslie Lamarche
• 金额: $ 43.04万
• 依托单位: SRI International
• 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: 2023-11-01 至 2026-10-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2329981&HistoricalAwards=false
• 关键词: Collaborative; Research; CEDAR; Swarm; over

This collaborative project, involving Dartmouth College, the University of Alaska Fairbanks, and SRI, will explore and develop a new data infrastructure through the system-science use of a Swarm-over-Poker 2023 auroral observational campaign. The team will create new and powerful combined data products from this heterogeneous, distributed, multipoint data set and develop a data-sharing platform to share the derived heterogeneous data products and algorithms with the community. These data are interwoven into new, featurized data products and maps for both ionospheric model ingestion and ML studies. These products and tools will enable studies addressing science questions such as how and to what extent the auroral environment context (activity level, local time, latitude) controls the specifics of pre-midnight arc-scale auroral activity and coupling. This is timely as our community moves toward true system-science efforts that require a diversity of data to greatly advance our understanding of auroral generation and electrodynamics. The novelty of this project is that it will demonstrate the design of a research infrastructure for sharing and archiving derived data products from heterogeneous sources to enable new science for cross-scale cross-region coupling auroral studies. Graduate and undergraduate students will be supported by this project. The students exposed to this project will learn to work with heterogeneous and “multifaceted” CEDAR system science, interweaving multiply-distributed data with featurization tools, and with modelling, as needed for cross-scale cross-region coupling auroral studies. The project will host a series of virtual community discussions to engage with the broader geospace community.Swarm-over-Poker 2023 provided the opportunity to collect in situ ionospheric current and flow data from the ESA Swarm spacecraft, during nightly conjunctions with Poker Flat Research Range (PFRR), Alaska, from mid-February through the end of March 2023. The PFRR data include filtered auroral imagery, Poker Flat Incoherent Scatter Radar (PFISR) radar data, ground magnetometry, and additional instrumentation. The Swarm in situ data include thermal ion plasma flow data and field-aligned current data. From this heterogeneous, distributed, multipoint data set, the team will create new and powerful data products to address auroral system science by data-driving ionospheric models. The three science objectives are (1) an auroral system-science study of 2- way arc-scale vs regional-scale coupling for nightside auroral arcs using the winter 2023 Swarm-over-Poker campaign dataset. (2) Generation of tools for, and the data products of, ionospheric model-absorbable imagery-derived and imagery-guided heterogeneous data products for this campaign, and for shared public use. (3) Using this CEDAR-science driven study as a testbed for designing a new data infrastructure for using and sharing heterogeneously-derived CEDAR-science data products. Specific science questions to be addressed are (1) How, and how much, does the regional auroral environment constrain the details of specific arc-scale features? (2) What is the effect on the regional auroral environment, from arc-scale event signatures?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.

该合作项目由达特茅斯学院、阿拉斯加费尔班克斯大学和SRI共同参与，将通过系统科学的方式利用2023极光观测活动来探索和开发新的数据基础设施。团队将从这些异构的、分布式的、多点的数据集中创建新的、强大的组合数据产品，并开发一个数据共享平台，与社区共享派生的异构数据产品和算法。这些数据被编织成新的、有特色的数据产品和地图，用于电离层模型摄取和ML研究。这些产品和工具将使研究能够解决诸如极光环境背景（活动水平、当地时间、纬度）如何以及在多大程度上控制午夜前弧级极光活动和耦合的细节等科学问题。这是及时的，因为我们的社区正在向真正的系统科学努力迈进，这需要多样化的数据来极大地推进我们对极光产生和电动力学的理解。该项目的新颖之处在于，它将展示一种研究基础设施的设计，用于共享和归档来自异质来源的衍生数据产品，从而为跨尺度跨区域耦合极光研究提供新科学。本项目将支持研究生和本科生。参与本项目的学生将学习使用异构和“多面”的雪松系统科学，将多分布数据与特征化工具交织在一起，并根据需要进行跨尺度跨区域耦合极光研究。该项目将举办一系列虚拟社区讨论，与更广泛的地球空间社区进行交流。从2023年2月中旬到3月底，Swarm-over-Poker 2023提供了一个机会，在与阿拉斯加Poker Flat Research Range （PFRR）的夜间连接期间，从ESA Swarm航天器收集现场电离层电流和流量数据。PFRR数据包括过滤后的极光图像、扑克平面非相干散射雷达（PFISR）雷达数据、地面磁强计和其他仪器。Swarm现场数据包括热离子等离子体流数据和场向电流数据。从这个异构的、分布式的、多点的数据集中，该团队将创建新的、强大的数据产品，通过数据驱动电离层模型来解决极光系统科学问题。三个科学目标是：(1)利用2023年冬季的Swarm-over-Poker活动数据集，对夜间极光弧的双向弧尺度与区域尺度耦合进行极光系统科学研究。(2)为该活动生成电离层模型可吸收图像衍生和图像引导的异构数据产品的工具和数据产品，并供公共共享使用。(3)以该研究为试验台，设计新的数据基础设施，用于使用和共享异构派生的CEDAR-science数据产品。需要解决的具体科学问题是：(1)区域极光环境如何以及在多大程度上约束特定弧尺度特征的细节？(2)弧尺度事件特征对区域极光环境有何影响？该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。