SHINE: Systematic Evaluation of the Coronal and Heliospheric Models Installed at the Community Coordinated Modeling Center (CCMC)

SHINE：对社区协调建模中心 (CCMC) 安装的日冕和日光层模型的系统评估

• 批准号: 1242798
• 负责人: Lan Jian
• 金额: $ 20.54万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-05-04 至 2015-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1242798&HistoricalAwards=false
• 关键词: SHINE; Systematic; Evaluation; Coronal; Heliospheric

The Principal Investigator (PI) and her collaborator will evaluate the success of several models now being hosted at the Community Coordinated Modeling Center (CCMC) at NASA's Goddard Space Flight Center, to determine how these models can best be used and how they could be improved. This effort will specifically focus on the Wang-Sheeley-Arge (WSA) coronal model, the Magnetohydrodynamics-Around-A-Sphere (MAS) coronal model, the ENLIL heliospheric/solar wind model ("Enlil" was the Sumerian wind god), and the Space Weather Modeling Framework (SWMF), in order to systemically evaluate their capabilities in simulating the solar corona and solar wind structure for the solar minimum period of 2007-09. To compare model output with multi-spacecraft observations, the PI's team will test about 246 model runs for each solar Carrington rotation and for each available spacecraft as an observation source, in order to fully assess the differences in model output caused by the varying solar boundary conditions measured by different spacecraft, as opposed to variations caused by different physics or numerical treatments in the various models. Because these team members are not involved in developing specific models, they can provide an unbiased evaluation of the advantages and disadvantages of each model and in this way, assist the original developers with model validation and enhancement. This effort will advance the community's ability to use the models at the CCMC to accurately simulate solar wind evolution in the inner heliosphere and to connect phenomena occurring on the Sun with solar wind structures. This evaluation of the CCMC's solar corona and solar wind models is a necessary step in validating the tools needed for further advances in space physics research and in space weather forecasting. The PI is a young female postdoc who will receive mentoring and career development through this project, thereby enhancing the participation of underrepresented groups in the physical sciences. The Co-PI also will incorporate these results into his courses teaching undergraduate and graduate students. The team will disseminate these research results broadly through participation at annual scientific meetings and workshops.

主要研究者（PI）和她的合作者将评估目前在NASA戈达德太空飞行中心的社区协调建模中心（CCMC）托管的几个模型的成功，以确定如何最好地使用这些模型以及如何改进它们。这项工作将特别侧重于Wang-Sheeley-Arge日冕模型、磁流体动力学-A-Sphere日冕模型、ENLIL日光层/太阳风模型（“Enlil”是苏美尔人的风神）和空间气象建模框架，以便系统评价它们模拟2007- 2009年太阳活动极小期日冕和太阳风结构的能力。 为了将模型输出与多航天器观测结果进行比较，PI的团队将为每个太阳卡林顿旋转和每个可用的航天器作为观测源测试约246个模型运行，以充分评估由不同航天器测量的不同太阳边界条件引起的模型输出差异，而不是由不同模型中的不同物理或数值处理引起的变化。由于这些团队成员不参与开发特定模型，因此他们可以对每个模型的优点和缺点提供公正的评估，并通过这种方式协助原始开发人员进行模型验证和增强。这一努力将提高社区使用CCMC模型的能力，以准确模拟日光层内部的太阳风演变，并将太阳上发生的现象与太阳风结构联系起来。对CCMC太阳日冕和太阳风模型的评估是验证进一步推进空间物理研究和空间天气预报所需工具的必要步骤。PI是一名年轻的女性博士后，她将通过该项目获得指导和职业发展，从而提高代表性不足的群体在物理科学中的参与。Co-PI还将把这些结果纳入他的课程教学本科生和研究生。该小组将通过参加年度科学会议和讲习班，广泛传播这些研究成果。