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Improvement and extension of ETRS 89 in Latvia and Lithuania based on the NKG 2003 GPS campaign

机译:基于NKG 2003 GPS运动的拉脱维亚及立陶宛ETRS 89的改进与延长

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The present ETRS 89 realizations in Latvia and Lithuania are based on the EUREF-BAL'92 campaign, which has an estimated accuracy of the same level as the original EUREF 89 campaign (class C). Latvia and Lithuania wish to replace their EUREF-B AL '92 realization with an ETRS 89 realization based on the NKG 2003 GPS campaign. The NKG 2003 GPS campaign was carried out in GPS-week 1238 (September 28th to October 4th 2003) under the framework of the Nordic Geodetic Commission (NKG). The campaign included mainly permanent stations in the Nordic and Baltic area as well as Island, Greenland and Svalbard.
机译:目前的ETRS 89在拉脱维亚和立陶宛的实现是基于Euref-Bal'92活动,该活动估计准确性与原始EUREF 89竞选(C类)相同的级别。拉脱维亚和立陶宛希望通过基于NKG 2003 GPS运动的ETRS 89实现来取代他们的Euref-B Al '92实现。根据北欧大地测量委员会(NKG)的框架,NKG 2003 GPS广告系列于GPS - 周1238(2003年9月28日至10月4日)。该活动主要包括北欧和波罗的海地区的永久性电视台以及岛屿,格陵兰岛和斯瓦尔巴岛。

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