SHINE: Enhancement and Documentation of the Community Heliospheric Modeling System

在这项工作中，首席调查员(PI)将改进和记录他在NASA戈达德太空飞行中心社区协调建模中心(CCMC)帮助实施的日球层代码ENLIL。具体地说，PI将记录模型特征、测试结果和文件结构；更新模型的元数据系统，以跟踪在各种条件和参数下使用不同日冕数据的细节；提供“第一眼”可视化和动画能力；纳入航天器轨迹数据，以支持多点和多角度研究；并提供读取、分析和可视化下载的数值数据的样本程序。这项活动将允许PI在ENLIL模型文档、实施、验证、接口开发和对用户反馈的响应的所有阶段与CCMC工作人员进行更积极的合作。ENLIL 3D磁流体动力学(MHD)程序模拟由各种分析、经验和数值日冕模型驱动的共同旋转的结构太阳风，以及使用基于日冕观测的参数化输入来模拟简单的行星际瞬变。Enlil已经被各种用户成功地应用于各种日球层问题，它还在空间天气预报的实时模式下运行。尽管CCMC为ENLIL提供的按要求运行的机会对日球界来说是一个重大进步，但PI将进一步改进这一模拟服务。利用STEREO(日地关系观测站)和其他观测资料开展的太阳-地球系统气候和天气活动，不断扩大的用户基础和即将举行的SIRE(太阳、日光层和行星际环境)和CAWSES(太阳-地球系统气候和天气)活动突出表明，日球层建模系统必须具有这种增强的特点，包括更好的文件和嵌入的元数据、对结果的明确解释以及辅助分析和可视化工具。由于CCMC为学生提供了一个天然的切入点，这一项目也将改善社区教育活动。

In this effort, the Principal Investigator (PI) will enhance and document the heliospheric code ENLIL that he has helped implement at the Community Coordinated Modeling Center (CCMC) at NASA Goddard Space Flight Center. Specifically, the PI will document model features, test results, and file structures; update the model's metadata system to track the details of utilizing different coronal data under various conditions and parameters; provide "first-look" visualization and animation capability; incorporate spacecraft trajectory data to support multi-point and multi-perspective studies; and provide sample procedures for reading, analyzing, and visualizing downloaded numerical data. This activity will permit the PI to have a much more active collaboration with the CCMC staff during all phases of ENLIL model documentation, implementation, verification, interface development, and response to user feedback.The ENLIL 3D magnetohydrodynamic (MHD) code simulates the co-rotating structured solar wind, driven by various analytical, empirical, and numerical coronal models, as well as simple interplanetary transients using parameterized inputs based upon coronagraph observations. ENLIL has been successfully applied by various users to a wide range of heliospheric problems, and it is also operated in a real-time mode for space weather prediction. Although the CCMC's run-on-request opportunity for ENLIL represents a major advance for the heliospheric community, the PI will further improve this modeling service. The growing user base and upcoming SHINE (Solar, Heliospheric, and INterplanetary Environment) and CAWSES (Climate And Weather of the Sun-Earth System) campaign events utilizing STEREO (Solar TErrestrial RElations Observatory) and other observations underscores the importance of having a heliospheric modeling system with such enhanced features, including better documentation and embedded metadata, unambiguous interpretation of results, and auxiliary analysis and visualization tools. Since the CCMC provides a natural entry point for students, this project will also offer improvements in community education activities.