Podcast
Questions and Answers
What is the primary purpose of the specification for Hydrographic Surveys presented by SURCON?
What is the primary purpose of the specification for Hydrographic Surveys presented by SURCON?
- To provide a guideline for environmental policies in surveying.
- To promote hydrographic surveying as a career in Nigeria.
- To establish standards for hydrographic surveys in Nigeria. (correct)
- To outline penalties for improper surveying practices.
Who is responsible for the final approval of the specifications for Hydrographic Surveys?
Who is responsible for the final approval of the specifications for Hydrographic Surveys?
- The President of the Surveyors Council of Nigeria. (correct)
- The expert reviewers who participated in the review process.
- The stakeholders involved in the production of the document.
- The government of Nigeria.
What must surveyors in Nigeria do in relation to the specifications for Hydrographic Surveys?
What must surveyors in Nigeria do in relation to the specifications for Hydrographic Surveys?
- Consult with the public before implementing the specifications.
- Use the specifications as suggestions rather than mandates.
- Adhere to the procedures and methods specified in the document. (correct)
- Limit their surveying activities to coastal areas only.
What action does SURCON encourage beyond mere possession of the Specification for Hydrographic Surveys?
What action does SURCON encourage beyond mere possession of the Specification for Hydrographic Surveys?
What does the Enabling Act, Cap 425 of the Laws of the Federation of Nigeria empower SURCON to do?
What does the Enabling Act, Cap 425 of the Laws of the Federation of Nigeria empower SURCON to do?
What is a primary limitation of side scan sonar equipment mentioned?
What is a primary limitation of side scan sonar equipment mentioned?
Which hydrographic survey equipment is known for sub-decimetre accuracy in shallow water?
Which hydrographic survey equipment is known for sub-decimetre accuracy in shallow water?
What factor does NOT affect the density of sounding in hydrographic surveys?
What factor does NOT affect the density of sounding in hydrographic surveys?
What is the maximum line spacing applicable for a depth greater than 40 m?
What is the maximum line spacing applicable for a depth greater than 40 m?
What is a significant advantage of airborne laser sounding technology?
What is a significant advantage of airborne laser sounding technology?
What is considered mandatory in some hydrographic agencies when using side scan sonar?
What is considered mandatory in some hydrographic agencies when using side scan sonar?
How is depth accuracy error limited according to the provided values?
How is depth accuracy error limited according to the provided values?
Which technology is developing rapidly and offers great potential for total seafloor search?
Which technology is developing rapidly and offers great potential for total seafloor search?
What determines water depth in the context provided?
What determines water depth in the context provided?
What is the definition of water level as given in the content?
What is the definition of water level as given in the content?
Why might many hydrographic surveys continue to use single beam echo sounders?
Why might many hydrographic surveys continue to use single beam echo sounders?
What is a critical consideration in planning hydrographic surveys?
What is a critical consideration in planning hydrographic surveys?
Which statement best describes a seismic sea wave?
Which statement best describes a seismic sea wave?
What capability must the computer possess according to the content?
What capability must the computer possess according to the content?
What is the significance of introducing values into the formula ±v?[a]?
What is the significance of introducing values into the formula ±v?[a]?
Which condition potentially influences the calculation of water level?
Which condition potentially influences the calculation of water level?
What is the primary purpose of an isobath on a chart?
What is the primary purpose of an isobath on a chart?
Which method is NOT typically used for determining seabed characteristics?
Which method is NOT typically used for determining seabed characteristics?
What is the recommended spacing for sampling according to seabed geology?
What is the recommended spacing for sampling according to seabed geology?
Which of the following statements regarding jetties is false?
Which of the following statements regarding jetties is false?
Why is physical sampling essential for inference techniques in seabed analysis?
Why is physical sampling essential for inference techniques in seabed analysis?
What does the term 'Mean Higher High Water' (MHHW) represent?
What does the term 'Mean Higher High Water' (MHHW) represent?
What is the maximum depth at which sampling is typically required?
What is the maximum depth at which sampling is typically required?
What does the term 'maximum ebb' refer to in tidal flow?
What does the term 'maximum ebb' refer to in tidal flow?
How should anomalous depths reported near the survey area be handled?
How should anomalous depths reported near the survey area be handled?
What is the primary characteristic of an Exclusive Economic Zone (EEZ)?
What is the primary characteristic of an Exclusive Economic Zone (EEZ)?
What is the maximum recommended interval between cross-check lines in a survey?
What is the maximum recommended interval between cross-check lines in a survey?
What does 'Great Diurnal Range' specifically measure?
What does 'Great Diurnal Range' specifically measure?
Which structure is commonly referred to as a 'Groin'?
Which structure is commonly referred to as a 'Groin'?
During shallow water soundings, what should be prioritized when selecting sounding points?
During shallow water soundings, what should be prioritized when selecting sounding points?
What is the purpose of the corrections applied to shorter periods of observation for tidal data?
What is the purpose of the corrections applied to shorter periods of observation for tidal data?
What is the definition of 'Mean High Water' (MHW)?
What is the definition of 'Mean High Water' (MHW)?
Study Notes
Hydrographic Survey Specifications
- The Surveyors Council of Nigeria (SURCON) has introduced specifications for hydrographic surveys.
- These specifications aim to standardize the practice of hydrographic surveys in Nigerian waters.
- SURCON mandates all legally qualified surveyors to comply with the procedures outlined in the specifications.
- The specifications were developed through an expert review process and a stakeholder workshop.
- The specifications address the need for accurate hydrographic surveys in various sectors including oil exploration, exploitation and spill management.
- The specifications highlight the importance of considering the state of the art depth measurement equipment, including single beam echo sounders, side scan sonar, multibeam echosounders, and airborne laser sounding.
- The document emphasizes the importance of conducting comprehensive surveys to ensure the detection of navigational hazards.
- The specifications include detailed guidance on aspects like the interpretation of survey data, bottom sampling, and the accuracy of depth measurements.
- The document also provides technical definitions of relevant terms like Tidal Wave, Water Level, and Mean Higher High Water.
- The document encourages ongoing feedback and revisions to ensure the specifications remain current and effective.
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Description
Explore the newly introduced hydrographic survey specifications by the Surveyors Council of Nigeria (SURCON). This quiz covers the standard procedures for conducting hydrographic surveys in Nigerian waters, highlighting technology and practices essential for accurate measurements and hazard detection in various sectors like oil exploration. Test your knowledge on the specifications and procedures mandated for qualified surveyors.
