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Connection of French and British levelling networks: Application to UELN

机译:法国和英国的水准测量网络的连接:在UELN中的应用

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摘要

The proposal to join the levelling networks of France and United Kingdom through the Channel Tunnel arose in January 1991. After three years of negotiations between Eurotunnel, the Ordnance Survey (OS) and the Institut Geographique National (IGN), the survey was eventually carried out in February 1994 by a British team and a French one. First computations were then made and a disagreement was already noticed between both levellings, but this issue was left dormant. Because of the insistent demand of UELN for a precise link between Great-Britain and the continent, the Channel Tunnel levelling case was reopened last year. A new computation of the French levelling data was made, confirming an inexplicable disagreement between both levellings. Investigations were carried out in order to find reasons for this discrepancy; but to no avail.
机译:1991年1月提出了通过海峡隧道加入法国和英国的水准测量网络的建议。经过欧洲隧道,兵器测量(OS)和国家地理学会(IGN)的三年谈判之后,最终进行了该测量1994年2月由一支英国队和一支法国队组成。然后进行了首次计算,并且在两个水准仪之间已经发现了分歧,但是这个问题一直处于休眠状态。由于UELN一直要求在大不列颠与欧洲大陆之间建立精确的联系,因此去年重新启动了Channel Tunnel Leveling案件。对法国水准仪数据进行了新的计算,确认了两个水准仪之间无法解释的分歧。为了发现这种差异的原因进行了调查;但无济于事。

著录项

  • 来源
    《EUREF Publication no.17》|2007年|p.63-68|共6页
  • 会议地点 London(GB);London(GB)
  • 作者单位

    Alain Harmel, Franchise Duquenne, Alain Coulomb: Institut Geographique National Service de la Geodesie et du Nivellement, Paris, France;

    University of Edinburgh;

    University College London, UK;

    Ordnance Survey of Great-Britain, UK;

    Ordnance Survey of Great-Britain, UK;

    Institut Geographique National Laboratoire de Recherche en Geodesie, Paris, France;

    Alain Harmel, Franchise Duquenne, Alain Coulomb: Institut Geographique National Service de la Geodesie et du Nivellement, Paris, France;

    Alain Harmel, Franchise Duquenne, Alain Coulomb: Institut Geographique National Service de la Geodesie et du Nivellement, Paris, France;

    Alain Harmel, Franchise Duquenne, Alain Coulomb: Institut Geographique National Service de la Geodesie et du Nivellement, Paris, France;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 测绘学;
  • 关键词

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