西南三省一市1：50万裸露型碳酸盐岩类含水岩组空间分布数据

本数据集包含了西南三省一市1：50万裸露型碳酸盐岩类含水岩组空间分布数据，为矢量数据。数据源于四川、贵州和云南区域地质调查队。首先西南三省一市1:50万水文地质图进行坐标纠正，将水文地质图转换到统一坐标系下，经过在ARCGIS下进行编码、矢量化、编辑修改、建立拓扑关系，形成西南三省一市行政区的1:50万水文地质图；提出三省一市裸露型碳酸盐岩类含水岩组数据，然后进行二次加工形成西南三省一市的裸露型碳酸盐岩类含水岩组空间分布数据。

This dataset contains 1:500,000 spatial distribution data of outcrop carbonate rock aquifer groups in the three provinces and one municipality of Southwest China, which is vector data. The data originates from the regional geological survey teams of Sichuan, Guizhou and Yunnan. First, coordinate correction was applied to the 1:500,000 hydrogeological maps covering the three provinces and one municipality in Southwest China to convert them into a unified coordinate system. Then, operations including encoding, vectorization, editing and revision, and establishment of topological relationships were carried out using ArcGIS, yielding the 1:500,000 hydrogeological maps for the administrative regions of the three provinces and one municipality. Subsequently, the data of outcrop carbonate rock aquifer groups for the three provinces and one municipality was extracted, followed by secondary processing to generate the final spatial distribution data of outcrop carbonate rock aquifer groups in the three provinces and one municipality of Southwest China.