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: 1062105
• 负责人: Lan Jian
• 金额: $ 28.3万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-04-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1062105&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.

首席研究员（PI）和她的合作者将评估目前在美国宇航局戈达德太空飞行中心社区协调建模中心（CCMC）主持的几个模型的成功，以确定如何最好地使用这些模型以及如何改进它们。本研究将重点关注wang - sheey - arge （WSA）日冕模型、MAS日冕模型、ENLIL日球/太阳风模型（ENLIL是苏美尔人的风神）和空间天气模型框架（SWMF），以系统地评估它们在模拟2007-09年太阳极小期日冕和太阳风结构方面的能力。为了将模型输出与多航天器观测结果进行比较，PI团队将对每个太阳卡灵顿旋转和每个可用航天器作为观测源进行大约246次模型运行测试，以便全面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不同物理或数值处理引起的差异。因为这些团队成员不参与开发特定的模型，所以他们可以对每个模型的优点和缺点进行公正的评估，并以这种方式帮助原始开发人员进行模型验证和增强。这项工作将提高社区使用CCMC模型精确模拟太阳风内部日球层演变的能力，并将太阳上发生的现象与太阳风结构联系起来。对CCMC的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，从而加强在物理科学领域代表性不足的群体的参与。合作项目负责人还将把这些结果纳入他教授本科生和研究生的课程中。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。