SHINE: Solar Wind with a Time-dependent, MHD, Interplanetary Scintillation Tomography

SHINE：太阳风与时间相关的 MHD 行星际闪烁断层扫描

• 批准号: 1358386
• 负责人: Nikolai Pogorelov
• 金额: $ 34.34万
• 依托单位: University of Alabama in Huntsville
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-07-01 至 2018-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1358386&HistoricalAwards=false
• 关键词: SHINE; Solar; Wind; Time; dependent

The main goal of this 3-year SHINE project is to locate heliospheric structures globally around the Sun, determine their relationship to the heliospheric velocity and density, and trace them back toward the Sun in a physically consistent way. This research project is directly related to one of the National Space Weather goals, namely "to determine the connections between eruptive events and the Sun, and to enhance both the understanding and predictions of solar wind geo-effective events." This project would yield a major step forward in the simulation of complex, turbulent gas systems (both charged and neutral) in the inner Solar System and elsewhere. The development of physical models that embrace "coupling complexity" via the self-consistent incorporation of multiple physical processes is viewed as a pivotal development in the different plasma physics areas for the current decade. The research effort will also provide leadership in promoting plasma physics and computational science within the University of Alabama in Huntsville and the University of California in San Diego campuses. Furthermore, through the training of a broad spectrum of students, scientists and engineers, the project will foster Space Physics research within the State of Alabama. The research and EPO agenda of this SHINE project supports the Strategic Goals of the AGS Division in discovery, learning, diversity, and interdisciplinary research.The main objective of this SHINE project is to develop and utilize a new MHD (magnetohydrodynamic) - IPS (interplanetary scintillations) tomography tool of the solar wind (SW) in order to investigate the evolution of the SW plasma and magnetic field, as well as turbulent fluctuations, from distances beyond the critical point outwards to heliocentric distances of 1-5 AU. The team will study the propagation of Coronal Mass Ejections (CMEs) into the distant SW, paying particular attention to the magnetic field structure inside CMEs, which is of particular importance for geo-effective events. Moreover, by way of performing the numerical simulations, the CMEs will be propagating through a realistic SW background to the points where the distributions will be compared with the spacecraft data. This will allow the researchers to investigate the effect of CMEs and other transient events on the Earth and interplanetary environment, and help formulate the safety requirements for future interplanetary missions. This makes it a valuable asset for their investigation of "the solar cycle dependence of CMEs, including their propagation through and their interaction with the background SW, including the linking of interplanetary and near-Sun phenomena," as stated in the goals of the NSF's SHINE program.

这个为期3年的SHINE项目的主要目标是定位太阳周围的日光层结构，确定它们与日光层速度和密度的关系，并以物理一致的方式将它们追溯到太阳。 该研究项目与国家空间气象目标之一直接相关，即“确定喷发事件与太阳之间的联系，并加强对太阳风地球效应事件的理解和预测。“这个项目将在模拟内太阳系和其他地方的复杂湍流气体系统（带电和中性）方面迈出重要一步。 物理模型的发展，拥抱“耦合的复杂性”，通过自我一致的多个物理过程的合并被视为一个关键的发展，在不同的等离子体物理领域的当前十年。 这项研究工作还将在亨茨维尔的亚拉巴马大学和圣地亚哥的加州大学校园内促进等离子体物理和计算科学方面发挥领导作用。 此外，该项目还将通过培训各类学生、科学家和工程师，促进亚拉巴马州的空间物理学研究。 这个SHINE项目的研究和EPO议程支持AGS部门在发现，学习，多样性和跨学科研究方面的战略目标。这个SHINE项目的主要目标是开发和利用新的MHD（磁流体动力学）- IPS太阳风（SW）的（行星际涡旋）层析成像工具，为了研究SW等离子体和磁场的演变，以及湍流波动，从超过临界点的距离向外到1-5 Au的日心距离。 该团队将研究日冕物质抛射（CME）向遥远的西南部的传播，特别关注CME内部的磁场结构，这对地球有效事件特别重要。 此外，通过进行数值模拟，日冕物质抛射将通过一个现实的SW背景传播的点的分布将与航天器数据进行比较。 这将使研究人员能够调查CME和其他瞬变事件对地球和行星际环境的影响，并帮助制定未来行星际任务的安全要求。这使得它成为他们研究“CME的太阳周期依赖性的宝贵资产，包括它们通过背景SW的传播和相互作用，包括行星际和近太阳现象的联系”，正如NSF的SHINE计划的目标所述。