National register of base geodetic, gravimetric and magnetic control networks (PRPOG)

<p><strong>In the National Geodetic and Cartographic Resources are collected and available information and data (including archival) of basic geodetic points for the entire country in the networks.</strong></p> <p>Coordinates of the horizontal basic network are available in the spatial reference system "PL-ETRF89" or "PL-ETRF2000" and the national coordinate systems,„PL-1992” i ”PL-2000”.</p> <p>The heights of levelling network are available in The Height Normal System PL-KRON86-NH i PL-EVRF2007-NH. For some points the ellipsoid heights are definied in according to the ellipsoid GRS 80.</p> <p> </p> <p> </p><p><strong>国家大地测量与制图资源库（National Geodetic and Cartographic Resources）收录并公开了覆盖全国全域的基准大地测量点（basic geodetic points）网络相关信息与数据（含存档资料）。</strong></p><p>水平基准网（horizontal basic network）的坐标可通过空间参考系（spatial reference system）PL-ETRF89、PL-ETRF2000，以及国家坐标系（national coordinate systems）PL-1992与PL-2000获取。</p><p>水准网（levelling network）的高程可通过正常高系统（Height Normal System）PL-KRON86-NH与PL-EVRF2007-NH获取。部分点位的椭球高（ellipsoid heights）依据GRS 80参考椭球进行定义。</p><p></p><p></p>