Solar turbulent convection probed by helioseismology (A01)

通过日震学探测太阳湍流对流（A01）

• 批准号: 211157451
• 金额: --
• 依托单位: Max-Planck-Institut für Sonnensystemforschung (MPS)
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/211157451?language=en
• 关键词: Solar; turbulent; convection; probed; helioseismology

In the second funding period we will focus on nonlinear inversions for local helioseismology, which are required when flow perturbations are not weak. To limit the number of numerical solutions of forward problems, we will use preconditioned Newton-CG methods. Moreover, we will directly invert for convective Reynolds stresses from correlations of travel times, studying in particular their dependence on latitude. This will contribute to our understanding of the global dynamics of the solar convection zone.

在第二个资助期，我们将专注于局部日震学的非线性反演，这是在气流扰动不弱时所需的。为了限制正问题的数值解的数量，我们将使用预条件牛顿-CG方法。此外，我们将从旅行时间的相关性中直接反演对流雷诺应力，特别是研究它们对纬度的依赖。这将有助于我们了解太阳对流带的全球动力学。