Boundary of the ground-water flow model by IT Corporation (1996), for the Death Valley regional ground-water flow system study, Nevada and California

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This digital data set defines the boundary of the steady-state ground-water flow model built by IT Corporation (1996). The regional, 20-layer ground-water flow model was developed for the Underground Test Area (UGTA) Phase I project to simulate the Nevada Test Site and surrounding areas. The model was used for estimating the amount of water moving through the ground-water system, predicting the movement of contaminants, evaluating uncertainty in these [...]

本数据集发布于2016年10月1日美国地质调查局（United States Geological Survey, USGS）相关政策生效日期之前，该政策规定了科学数据的评审、批准与发布流程，详见《USGS调查手册第502.8章：基础科学实践：科学数据发布评审与批准》。本数字数据集划定了IT公司（IT Corporation，1996年）构建的稳态地下水流模型的边界范围。该区域式20层地下水流模型是为地下测试区（Underground Test Area, UGTA）第一阶段项目开发的，用于模拟内华达试验场及其周边区域。该模型曾被用于估算地下水流经系统的水量、预测污染物运移路径，以及评估上述环节的不确定性[...]