Three Dimensional Structure of the Earth's Mantle

拟议继续研究地幔的三维结构，暴露了在以前的资助下创建的大型数据集和已经开发的反演技术，以恢复关于地幔不均质性的更完整的信息，并对所产生的模型的不确定性进行量化。建议研究上地幔的P波非均质性，评估各向异性的要求，并对现有技术进行一些扩展和增强，以增加可从数据中提取的信息。

The proposed continuation of studies of the three-dimensional structure of the mantle expoit the large data sets created under previous funding, and the inversion techniques which have been developed, to recover more complete information on mantle heterogeneity and to quantify the uncertainty of the resulting models. It is proposed to study the P-wave heterogeneity of the upper mantle, to assess the requirement for anisotropy and to implement a number of extensions and enhancements of present techniques aimed at increasing the information which can be extracted from the data.