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首页> 外文期刊>Survey Review >Establishment of new Oman National Geodetic Datum ONGD14
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Establishment of new Oman National Geodetic Datum ONGD14

机译：建立新的阿曼国家大地基准面ONGD14

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The main objective of enhancing national geodetic control is to create a homogenous horizontal survey control for the country. The realisation of a new geocentric datum, namely the Oman National Geodetic Datum (ONGD14), provides the GPS user community with a modern surveying infrastructure. The existing national geodetic control will be strengthened through the enhancement of the old control network and the future establishment of GPS Oman National CORS Network stations. A dedicated project has been initiated by the National Survey Authority of Oman for the establishment of ONGD14. The first task involves checking the quality of the existing geodetic network of first and second order GPS control stations. This was then followed by carrying out a longer GPS geodetic measurement campaign involving 20 existing control stations throughout the country. GPS processing for precise baselines computation using Bernese software has been carried out. In realising the ONGD14, a network of 20 occupied control stations was connected to almost 50 IGS sites in the vicinity of Oman. A nation-wide combined network adjustment of common station coordinates in latest solution of ITRF2008 frame epoch 2013 (ITRF2008@2013) was then performed to establish the ONGD14.
机译：加强国家大地测量的主要目标是为国家创建同质的水平测量控制。新的地心基准面即阿曼国家大地基准面（ONGD14）的实现为GPS用户社区提供了现代化的测量基础设施。现有的国家大地测量将通过扩大旧的控制网络和未来建立GPS阿曼国家CORS网络站来加强。阿曼国家调查局已经启动了一个专门项目，以建立ONGD14。第一项任务涉及检查一阶和二阶GPS控制站的现有大地测量网络的质量。然后，随后进行了更长的GPS大地测量活动，涉及全国20个现有控制站。已经使用Bernese软件对GPS进行了精确的基准线计算。在实现ONGD14时，由20个被占用的控制站组成的网络连接到阿曼附近的近50个IGS站点。然后，在ITRF2008框架纪元2013（ITRF2008 @ 2013）的最新解决方案中进行了全国范围内公共站点坐标的组合网络调整，以建立ONGD14。

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