Saturated thickness, High Plains aquifer, 2009

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 raster data set represents the saturated thickness of the High Plains aquifer of the United States, 2009, in feet. The High Plains aquifer underlies approximately 112.6 million acres (176,000 square miles) in parts of eight States: Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming. The aquifer's saturated thickness ranges from near zero to about 1,200 feet (Weeks and Gutentag, 1981). Water-level declines occurred [...]

本数据集发布于2016年10月1日该政策生效之前——该政策由美国地质调查局（United States Geological Survey, USGS）制定，用于规范科学数据的审核、批准与发布流程，相关要求详见《USGS调查手册第502.8章：基础科学实践：科学数据发布的审核与批准》。本栅格数据集（raster data set）展示了2009年美国高平原含水层（High Plains aquifer）的饱和厚度，单位为英尺。该含水层覆盖美国8个州的部分区域，总面积约1.126亿英亩（合17.6万平方英里），涉及的州分别为科罗拉多州、堪萨斯州、内布拉斯加州、新墨西哥州、俄克拉荷马州、南达科他州、得克萨斯州与怀俄明州。该含水层的饱和厚度范围介于接近0英尺至约1200英尺之间（Weeks与Gutentag，1981）。水位下降现象已出现[……]