Collaborative Research: Determination of Time Dependent Velocity and Velocity Gradient Tensor Fields for EarthScope

本项目的首要目标是利用地球镜数据，在日到几十年的时间尺度和公里到数千公里的空间尺度上，确定北美洲大陆地壳形变的高精度、高分辨率的四维图像。我们正在通过分析来自Earthscope板块边界观测站（PBO）设施的连续GPS数据来实现这一目标，并通过扩展过去在板块边界尺度地壳变形分析和建模方面的经验来更好地解释地壳运动的时间依赖性。开发实现速度梯度张量场四维解的方法的基本目标将在Earthscope的全面实施之前实现。随着项目的成熟，开发一个社区可以用来分析地球镜数据的工具是一个主要目标。

0545519BennettThe overriding-objective of this project is to use Earthscope data todetermine a high-precision, high resolution, four-dimensional image ofcrustal deformation for the North America continent on time-scales of daysto decades, and spatial-scales of kilometers to thousands of kilometers.We are pursuing this goal by analyzing continuous GPS data from Earthscope'sPlate Boundary Observatory (PBO) facility, and by expanding upon pastexperience in the analysis and modeling of plate boundary-scale crustaldeformations to better account for time-dependence of crustal motions. Thefundamental objective of developing methods to realize four-dimensionalsolutions of the velocity gradient tensor field will be achieved prior tothe full implementation of Earthscope. It is a primary goal to develop atool that the community can use for future analysis of Earthscope data asthe project matures.