GEOBASE Training

GEOBASE can be a bespoke training course tailored to your Dimensional Control and vessel needs

GEOBASE Training Course Aims to;

  • Equip an individual with the theoretical and practical knowledge required to plan, undertake and report a vessel dimensional control survey.
  • The course contents is aligned to guidance from professional surveying bodies and covers traditional land and hydrographic surveying which underpins the conduct of a vessel dimensional control survey as well as, but not limited to, practices in the offshore energy industry.

    The course will;

  • Introduce the theory of hydrographic and geophysical surveying and the requirements for accurate vessel dimension data.
  • Introduce accuracy standards used in hydrographic surveying and how the dimensional control survey contributes to reducing the error budget.
  • Introduce the theory of land surveying and how land surveying practices are translated into the dimensional control survey.
  • Introduce the range of survey sensors available for performing hydrographic surveys and how to deal with these during a dimensional control survey.
  • Introduce the concepts of vessel design and how this is important when planning hydrographic survey sensor installation and the dimensional control survey.
  • Train somebody to review a dimensional control specification and plan how the survey will be undertaken
  • Train somebody to utilise total station and GNSS technology to conduct the vessel dimension control survey including setting up both a local and vessel reference frame on a static and floating vessel, observing offsets and capturing  data for the calibration of attitude and heading sensors
  • Train somebody how to process dimensional control data using software packages such as Microsoft  excel, AutoCAD and GEOBASE
  • Introduce the expected formats for dimensional control survey reporting.

Intended Learning Outcomes of Course;

  • On completing this course students will be able to:
  • Explain the importance of dimensional control surveying on offshore survey vessels and other offshore survey platforms (ROV, Trenchers)
  • Plan a dimensional control survey on both a floating and static vessel including the definition of vessel and local reference frames
  • Explain coordinate and rotation conventions and how these are used and applied during a dimensional control survey
  • Use total station technology to install a control network on a vessel and observe points within that network to millimetric accuracy
  • Use total station and GNSS technology to collect data for the calibration of vessel based attitude and heading sensors
  • Use relevant software for the processing of total station data including network adjustments and least squares analysis
  • Process and present dimensional control data so it can be successfully applied and used within the vessel survey software
  • Conduct total station and GNSS verification procedures to confirm the accuracy of dimensional control data and that data is applied correctly; within the vessel survey software.
  • Prepare a comprehensive report of survey containing relevant and easy to understand data.

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