CSEDI Collab. Research: Modeling the Earth's Deep Interior: An Integrative Approach

马斯特斯·魏德纳将地球科学中许多现在不同的学科统一起来的“标准模型”的愿景，是越来越多的地球科学家开始分享的愿景，这在很大程度上是因为地幔流动模型方面的最新进展，它开始整合大规模地震模型、矿物物理数据和地球动力学模型。不幸的是，我们目前的进展缓慢，因为学科之间人为的界限，以及小团队相对孤立地工作的传统。作为CSEDI正在进行的赠款的一部分，已经汇编了地震数据集、代码和模型，原则上使全球地震学家能够更全面地了解确定地球三维结构的问题。该计划目前正处于就地震学“背景”(或长波)3D模型达成近乎共识的时刻。加州大学伯克利分校和哈佛大学之间的合作(加州大学伯克利分校的重要参与)将致力于建立背景弹性模型(其中包括一维模型)。虽然这项研究的结果将是一个具体的模型(或模型系列)，但将向社区提供“参考”数据集(以及各种其他共享数据集)，以确保广泛参与参考模型的构建。最重要的是，目前的计划将扩展到地震学之外，最初将包括矿物物理部分(SUNY)和流动建模部分(U多伦多大学)。将开发工具和数据集，以便对横跨地幔的各种条件下的各种潜在成分进行正演模拟。其目标是使这些工具足够容易使用，以便非专家可以直接针对地震和大地测量数据测试成分模型。

Masters Weidner The vision of a "standard model" which unifies many now-distinct disciplines within the Earth sciences is one that an increasing number of geoscientists are beginning to share, largely because of recent advances in mantle flow-modeling which begin to integrate large-scale seismological models, mineral physics data, and geodynamical modeling. Unfortunately, our current progress is slow because of artificial boundaries between disciplines and the tradition of small groups working in relative isolation. As part of an ongoing CSEDI grant, seismic data sets, codes, and models have been compiled which, in principle, allow the global seismologist a more synoptic view of the problem of determining the 3D structure of the Earth. This program is now at the point where there is near-consensus on a seismological "background" (or long-wavelength) 3D model. A collaboration between UCSD and Harvard (with significant involvement of UC Berkeley) will work towards establishing the background elastic model (which includes a 1D model). While the outcome of this research will be a specific model (or family of models), the "reference" data sets will be made available to the community (as well as a wide variety of other shared data sets) to ensure broad participation in the construction of reference models. Most importantly, the current program will be extended beyond seismology and initially will include a mineral physics component (SUNY) and a flow-modeling component (U. Toronto). Tools and data sets will be developed that allow forward modeling of a wide range of potential compositions for conditions which span the mantle. The goal is to make these tools sufficiently easy to use so that non-specialists can test compositional models directly against seismic and geodetic data.