NGS Horizontal Control Stations in Kentucky

This data contains a set of geodetic control stations monitored 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. Data Download: https://ky.box.com/s/dmzcp4thfhj9iz4rsbfg180g4lsoarus本数据集包含一组由美国国家大地测量局（National Geodetic Survey，NGS）监测的大地测量控制点。本数据集内的每一处大地测量控制点，均拥有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（Orthometric Height）数值，或同时兼具二者。美国国家大地测量局（NGS）作为美国国家级大地测量数据的官方托管机构，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最终勘测成果、用于格式化、计算、验证与校正原始勘测观测值，或是实现不同大地基准间数值转换的软件程序，以及说明如何获取和使用大地测量数据产品与服务的相关出版物。数据下载：https://ky.box.com/s/dmzcp4thfhj9iz4rsbfg180g4lsoarus