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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