Integrated Time Average Shear Wave Velocity to a Depth of 30 Meters (Vs30) Map of Texas

Vs30 is an important parameter used for characterizing site response in seismic analysis. With new measurements of Vs30 in Texas, we are able to create an integrated Vs30 map for Texas that is based on (1) available observations of Vs30 in Texas, Oklahoma and Kansas, (2) a geologic proxy for Vs30 based on rock type and geologic age, and (3) geostatistical kriging that integrates the geologic proxy predictions of Vs30 along with the Vs30 observations. The integrated map has various uses in seismic analysis and geotechnical engineering, including but not limited to estimating site response, development of ground motion prediction equations, and quantifying physical properties of geologic units. This dataset contains a grid file representing the integrated Vs30 map, as well as the data and scripts required to re-create the map. Please reference the READ_ME document for more detailed descriptions of each file.

Vs30是地震分析中用于表征场地响应的关键参数。依托德克萨斯州（Texas）最新获取的Vs30实测数据，我们成功构建了一套整合式德克萨斯州Vs30空间分布图，该图谱的构建依据包括三部分：1）德克萨斯州、俄克拉荷马州（Oklahoma）与堪萨斯州（Kansas）已公开的Vs30观测数据集；2）基于岩石类型与地质年代构建的Vs30地质替代指标；3）融合Vs30观测数据与地质替代指标预测结果的地统计克里金（geostatistical kriging）插值方法。该整合式分布图可广泛应用于地震分析与岩土工程领域，具体应用场景包括但不限于场地响应估算、地震动预测方程（ground motion prediction equations）的研发，以及地质单元物理属性的量化分析。本数据集包含用于呈现该整合式Vs30分布图的网格文件，以及用于重新生成该图谱所需的全部数据与脚本。如需了解各文件的详细说明，请参阅READ_ME文档。