Global Crustal Model CRUST 1.0 and a Crustal Database

这笔赠款支持编制一个关于地球地壳弹性结构信息的综合数据库。将列出的参数包括莫霍面深度、平均地壳速度、密度、沉积盖层厚度和净速度。随着数据库的扩大，它将为一个详细的全球地壳模型提供必要的资源，该模型定义在1度网格CREST 1.0上。这一新模型将使PI能够获得更详细和无偏见的地球上地幔和下地幔的断层图像。由于目前的地壳模型不能作为即将开展的地球观测倡议中的参考模型，因此能够进行这种公正研究的必要性日益重要。这确保了在广泛的学科范围内使用CREST 1.0。例如，作为一个整体，该模型可用作其他层析研究和地震定位程序的起始模型，或用作计算预测(如泥沙负荷效应、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当地结构使用的详细信息表。这将有利于特定区域的“精细研究”，即用于在小于1.0地壳100公里的尺度上寻找信息的应用。该数据库可能是对其他研究人员开放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.