Aquifer Heterogeneity Estimation Using Ground Penetrating Radar

9414361 Young本研究的目的是测试项目假设，即探地雷达（GPR）反射在空间上与水力传导率和其他土壤特性相关。 需要这种非侵入性地球物理方法来补充直接采样，以有效地获得几乎连续的地下覆盖，并最大限度地减少操作员暴露于潜在危险材料。 探地雷达数据将在已经完成大量地下材料特征描述的试验区采集。 待研究的场地包括饱和和非饱和条件，密歇根州的当地场地以及其他具有重要水力传导性试验结果数据库的现场场地（例如，密西西比、新墨西哥州、科德角和加拿大）。 空间分布的统计关系将寻求仔细获得的水力传导系数参数和定量描述雷达反射。

9414361 Young The objective of this research is testing the project hypothesis that ground penetrating radar (GPR) reflections are spatially correlated to hydraulic conductivities and other soil properties. Such a non-invasive geophysical method is needed to supplement direct sampling, to obtain nearly continuous subsurface coverage efficiently, and to minimize operator exposure to potentially dangerous materials. GPR data will be acquired in test areas for which extensive subsurface material characterizations have already been accomplished. Sites to be studied include saturated and unsaturated conditions, with local sites in Michigan and also taking advantage of other field sites for which a significant data base of hydraulic conductivity test results exists (e.g. Mississippi, New Mexico, Cape Cod, and Canada). Statistical relationships for spatial distributions will be sought between carefully obtained hydraulic conductivity parameters and quantitative descriptors of radar reflections.