DS926 Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina -- Clipping boundary extent for the first permeable zone below the LISAPCU

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 polygon representing the extent of the Lower Floridan below LISAPCU raster.

作为美国地质调查局（U.S. Geological Survey）地下水资源计划的组成部分，本数据集针对佛罗里达含水层系统内选定的水文地质单元生成了数字地表与厚度数据，旨在构建更新版水文地质框架。本要素类（feature class）包含一个多边形要素，用以表征LISAPCU栅格下方的下佛罗里达含水层分布范围。