Global Crustal Model CRUST 1.0 and a Crustal Database

这笔赠款用于支助编制一个关于地壳弹性结构的综合资料数据库，将制成表格的参数包括莫霍面深度、地壳平均速度、密度、沉积物覆盖层厚度和Pn速度。随着数据库的增长，它将为在1度网格上定义的详细全球地壳模型CRUST 1.0提供必要的资源。这个新模型将使PI能够获得地球上地幔和下地幔的更详细和无偏见的断层图像。由于目前的地壳模型不能作为即将到来的EARTHSCOPE计划的参考模型，因此能够进行这种无偏见的研究的必要性变得越来越重要。地壳模型及其所基于的数据库将在万维网上提供给其他研究人员。这确保了在广泛的学科范围内使用CRUST 1.0。例如，该模型作为一个整体可以用作其他层析成像研究和地震定位过程中的起始模型，或用作计算预测（如沉积物加载效应、电导率或均衡补偿、区域波传播）的模型。该数据库将提供目前可供地方结构使用的详细资料表。这将有利于对特定区域进行“精细尺度研究”，即用于寻求小于100公里地壳1.0尺度的信息的应用。该数据库可能是向其他研究人员公开提供的最全面的全球地壳数据库。

This grant provides support to compile a comprehensive database of information on the elastic structure of the Earth's crust.Parameters that will be tabulated include depth to Moho, average crustal velocities, density, thickness of the sedimentary cover and Pn velocities. As the database grows, it will provide the necessary resource for a detailed global crustal model that is defined on a 1 degree grid, CRUST 1.0. This new model will enable the PI to obtain more detailed and unbiased tomographic images of the Earth's upper and lower mantle. The necessity to be able to perform such unbiased studies gain increasing importance as current crustal models fail to serve as reference model in the upcoming EARTHSCOPE initiative.The crustal model will be available to other researchers on the worldwide web, together with the database it isbased upon. This assures the utilization of CRUST 1.0 within a wide range of disciplines. For example, the model as a whole can be used as a starting model in other tomographic studies and earthquake location procedures or as a model to calculate predictions (such as sediment loading effects, electrical conductivity or isostatic compensation, regional wave propagation). The database will provide tables of detailed information that is currently available for local structure. This will benefit the "fine-scale research" of a particular area, i.e. for applications that seek information on a scale smaller than the 100 km of CRUST 1.0. The database will probably be the most comprehensive global crustal database that is openly available to other researchers.