Florida NGS Bench Marks

This data contains a set of geodetic control stations maintained by the National Geodetic Survey. Each geodetic control station in this dataset has either a precise Latitude/Longitude used for horizontal control or a precise Orthometric Height used for vertical control, or both. The National Geodetic Survey (NGS) serves as the Nation's depository for geodetic data. The NGS distributes geodetic data worldwide to a variety of users. These geodetic data include the final results of geodetic surveys, software programs to format, compute, verify, and adjust original survey observations or to convert values from one geodetic datum to another, and publications that describe how to obtain and use Geodetic Data products and services. For technical issues, updates or questions please contact Bryan Shoaf.本数据集包含由美国国家大地测量局（National Geodetic Survey, NGS）维护的一批大地测量控制点。本数据集内的每一个大地测量控制点，均具备用于水平控制的精确经纬度坐标、用于垂直控制的精确正高高程，或同时兼具二者。美国国家大地测量局是美国国家级大地测量数据的馆藏机构，面向全球各类用户分发大地测量数据。此类大地测量数据涵盖大地测量外业的最终成果、用于格式化、计算、核验与平差原始测量观测值，或实现不同大地基准间数值转换的软件程序，以及阐述如何获取和使用大地测量数据产品与服务的出版物。若有技术问题、更新需求或相关疑问，请联系Bryan Shoaf。