SHINE: Enhancement and Documentation of the Community Heliospheric Modeling System

在这项工作中，首席研究员（PI）将增强并记录他在美国宇航局戈达德太空飞行中心的社区协调建模中心（CCMC）帮助实现的日球层代码ENLIL。具体来说，PI将记录模型特征、测试结果和文件结构；更新模型元数据系统，跟踪不同条件和参数下利用不同日冕数据的细节；提供“第一眼”的可视化和动画功能；整合航天器轨迹数据，支持多点、多视角研究；并提供了读取、分析和可视化下载数值数据的示例程序。该活动将允许PI在ENLIL模型文档、实现、验证、接口开发和响应用户反馈的所有阶段与CCMC人员进行更积极的合作。ENLIL 3D磁流体动力学（MHD）代码通过各种分析、经验和数值日冕模型，以及基于日冕观测的参数化输入，模拟了同向旋转的结构太阳风。ENLIL已被各种用户成功地应用于广泛的日球问题，并以实时模式运行，用于空间天气预报。尽管CCMC为ENLIL提供的按需运行的机会代表了日球圈社区的重大进步，但PI将进一步改进这种建模服务。不断增长的用户基础和即将到来的SHINE（太阳、日球层和行星际环境）和CAWSES（太阳-地球系统气候和天气）活动活动利用STEREO（太阳-地球关系观测站）和其他观测强调了拥有一个具有这些增强功能的日球层建模系统的重要性，包括更好的文档和嵌入式元数据，对结果的明确解释，以及辅助分析和可视化工具。由于CCMC为学生提供了一个自然的切入点，这个项目也将为社区教育活动提供改进。

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.