Toward a Self-Consistent Model of the Solar Dynamo

建立太阳能发电机的自洽模型

• 批准号: 0602023
• 负责人: Tamara Rogers
• 金额: $ 6.7万
• 依托单位: Rogers Tamara M
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-08-01 至 2008-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0602023&HistoricalAwards=false
• 关键词: Toward; Self; Consistent; Model; Solar

AST-0602023Rogers, TamaraDr. Rogers is awarded an NSF Astronomy and Astrophysics Postdoctoral Fellowship to carry out a program of research and education at the National Center for Atmospheric Research (NCAR). Despite detailed observations and decades of inquiry, the solar magnetic cycle is still poorly understood. While the usage of mean-field magnetohydrodynamic models is a useful tool to study the dynamo process, these models are often criticized as over-simplified approximations to the complex underlying physics. As an NSF Fellow, Dr. Rogers will conduct three-dimensional, self-consistent numerical simulations of convection and dynamo action in a realistic solar model. This is a formidable undertaking but one that has become possible in light of new advances in computational resources and sophisticated numerical tools. A fundamental understanding of the solar dynamo will have far-reaching consequences for the Sun-Earth connection and magnetic activity on other stars.Dr. Rogers will also utilize NCAR's extensive existing education and outreach arm.The NCAR "Windows to the Universe" website (www.windows.ucar.edu) is a web-based learning tool which offers numerous tools for educators, including classroom activities. Dr. Rogers will (1) extend the existing website to include more classroom activities related to the Sun and (2) bring these activities into classrooms in underserved communities through both in-school and after-school programs.

AST-0602023 Rogers，TamaraDr.罗杰斯被授予NSF天文学和天体物理学博士后奖学金，在国家大气研究中心（NCAR）开展研究和教育计划。尽管进行了详细的观测和数十年的研究，但人们对太阳磁循环仍然知之甚少。虽然使用平均场磁流体动力学模型是一个有用的工具来研究发电机过程，这些模型往往被批评为过于简化的近似复杂的基础物理。作为NSF研究员，罗杰斯博士将在一个现实的太阳能模型中进行对流和发电机作用的三维自洽数值模拟。这是一项艰巨的任务，但随着计算资源和复杂数值工具的新进展，这一任务已成为可能。对太阳发电机的基本了解将对日地联系和其他恒星的磁场活动产生深远的影响。罗杰斯博士还将利用NCAR现有的广泛的教育和推广部门。NCAR的“宇宙之窗”网站（www.windows.ucar.edu）是一个基于网络的学习工具，为教育工作者提供了许多工具，包括课堂活动。罗杰斯博士将（1）扩展现有的网站，包括更多的课堂活动与太阳和（2）把这些活动通过在学校和课后计划在服务不足的社区教室。