DS926 Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina -- Raster surface depicting the top of the Oldsmar permeable zone

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. Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system were developed to define an updated hydrogeologic framework as part of the U.S. Geological Survey Groundwater Resources Program. This feature class contains a gridded surface depicting the top of the Oldsmar permeable zone in feet relative to NGVD29.

本数据集发布于2016年10月1日美国地质调查局（USGS）科学数据审核、批准与发布政策的生效日期之前，该政策的制定依据为《美国地质调查局调查手册第502.8章：基础科学实践——科学数据发布的审核与批准》。佛罗里达含水层系统（Floridan aquifer system）中选定水文地质单元的数字化曲面与厚度数据，系为构建更新后的水文地质框架而开发，属于美国地质调查局地下水资源计划（Groundwater Resources Program）的组成部分。本要素类（feature class）包含一个网格化曲面，该曲面以英尺为单位，表征了奥兹马渗透带（Oldsmar permeable zone）顶部相对于1929国家大地垂直基准面（NGVD29）的高程值。