Marine Surveying Chapter 1 Quiz
48 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What role does local community involvement play in the restoration of coastal vegetation?

  • It increases the cost of restoration projects.
  • It helps ensure the long-term health and sustainability of the vegetation. (correct)
  • It focuses solely on economic growth in coastal areas.
  • It replaces the need for environmental agency collaboration.

How do tidal inlets influence coastal erosion?

  • By facilitating sediment transportation and tidal currents. (correct)
  • By completely preventing sediment movement.
  • By increasing the depth of enclosed bodies of water.
  • By creating larger barrier islands.

What is the primary goal of Integrated Coastal Zone Management (ICZM)?

  • To balance the social, economic, and environmental needs of coastal communities. (correct)
  • To eliminate human activities from coastal zones.
  • To maximize economic profit from coastal resources.
  • To promote urban development along coastlines.

What are the potential impacts of climate change on coastal areas?

<p>Increased flooding, erosion, and biodiversity loss. (C)</p> Signup and view all the answers

Which method is often used to manage tidal inlets?

<p>Dredging or jetty construction. (C)</p> Signup and view all the answers

Which of the following is NOT an effect of climate change on coastal ecosystems?

<p>Rapid growth of coastal biodiversity. (C)</p> Signup and view all the answers

What contributes to the dynamics of tidal inlets?

<p>Sediment transportation, wave action, and tidal currents. (B)</p> Signup and view all the answers

Which strategy is essential for the long-term health of restored coastal vegetation?

<p>Regular monitoring and management of the vegetation. (A)</p> Signup and view all the answers

What is the primary cause of shoreline erosion?

<p>Continuous wave action and water currents (C)</p> Signup and view all the answers

Which type of coastal erosion specifically affects steep coastal cliffs?

<p>Bluff erosion (B)</p> Signup and view all the answers

What is a consequence of excessive erosion in coastal environments?

<p>Increased sediment input leading to siltation (B)</p> Signup and view all the answers

What natural process contributes to dune erosion?

<p>Wave action removing sand from the dune system (B)</p> Signup and view all the answers

Which factor is NOT associated with coastal retreat?

<p>The steepness of coastal cliffs (A)</p> Signup and view all the answers

What makes headlands more susceptible to erosion than surrounding coastlines?

<p>Exposure to wave energy from multiple directions (C)</p> Signup and view all the answers

Siltation and erosion interact in what way?

<p>Erosion transports sediments that contribute to siltation (B)</p> Signup and view all the answers

Why is maintaining a balance between erosion and siltation important?

<p>To prevent habitat smothering and further erosion (A)</p> Signup and view all the answers

What is the purpose of a renewal survey?

<p>To adjust the insurance policy periodically (D)</p> Signup and view all the answers

What does a cargo survey primarily inspect?

<p>The quantity, condition, and stowage of cargo (C)</p> Signup and view all the answers

Which survey is conducted to determine the weight of cargo through vessel submersion changes?

<p>Draft survey (A)</p> Signup and view all the answers

What do moisture meters help identify in marine assets?

<p>Structural anomalies like rot and decay (D)</p> Signup and view all the answers

Which type of survey ensures compliance with regulatory requirements and industry standards?

<p>Cargo survey (A)</p> Signup and view all the answers

When is an intermediate survey conducted?

<p>At specific intervals during renewal surveys (C)</p> Signup and view all the answers

Which of the following is NOT a type of marine survey mentioned?

<p>Structural integrity survey (D)</p> Signup and view all the answers

What does 'stowage' refer to in the context of marine surveys?

<p>Arranging and securing cargo for transport (C)</p> Signup and view all the answers

What is a consequence of transported sediments increasing nutrient levels in water bodies?

<p>Promotion of excessive algal growth and potential harmful algal blooms (C)</p> Signup and view all the answers

How does siltation and coastal erosion impact local economies?

<p>By reducing available recreational space and impacting tourism (C)</p> Signup and view all the answers

What is one effect of erosion on coastal infrastructure?

<p>It can compromise the stability of roads and utilities (C)</p> Signup and view all the answers

What challenge does excessive sedimentation pose to navigation?

<p>It reduces the widths of navigable waterways (C)</p> Signup and view all the answers

What is a major impact of increased water turbidity due to sediment presence?

<p>A decrease in aquatic plant growth due to limited sunlight (A)</p> Signup and view all the answers

What occurs due to the loss of natural barriers like beaches?

<p>Heightened vulnerability of coastal communities (C)</p> Signup and view all the answers

Which factor contributes to the increased insurance costs for coastal properties?

<p>Structural damage from erosion to coastal infrastructure (C)</p> Signup and view all the answers

Which mineral is commonly carried by transported sediments that can affect water quality?

<p>Nitrogen (A)</p> Signup and view all the answers

What is the primary consideration in the demarcation of harbour limits?

<p>Navigational safety (D)</p> Signup and view all the answers

Which organization is significant in formulating regulations for the demarcation of harbour limits?

<p>International Maritime Organization (IMO) (D)</p> Signup and view all the answers

What does the United Nations Convention on the Law of the Sea (UNCLOS) provide?

<p>Legal framework for maritime activities (D)</p> Signup and view all the answers

Which type of laws are more specific to individual ports and harbours?

<p>Local laws (A)</p> Signup and view all the answers

Which of the following is NOT considered during the demarcation process?

<p>Historical landmarks (B)</p> Signup and view all the answers

What purpose do additional restrictions serve in relation to sensitive habitats within port areas?

<p>To prevent potential negative impacts (A)</p> Signup and view all the answers

What aspect should be disregarded when determining harbor limits?

<p>Economic benefits (D)</p> Signup and view all the answers

What type of laws address port operations and maritime safety at a national level?

<p>National laws (B)</p> Signup and view all the answers

What is a primary consideration in demarcating harbour limits?

<p>Incorporating concerns of local communities (C)</p> Signup and view all the answers

Why is it important to consider coastal dynamics in harbour demarcation?

<p>To ensure boundaries reflect ever-changing coastal conditions (B)</p> Signup and view all the answers

Which survey method utilizes satellite-based positioning systems for demarcation?

<p>Geodetic Survey (C)</p> Signup and view all the answers

What does a bathymetric survey primarily focus on?

<p>Mapping the depth and underwater topography (D)</p> Signup and view all the answers

What role does technological advancement play in harbour limit demarcation?

<p>Enhances accuracy and efficiency in navigational information (C)</p> Signup and view all the answers

What is a key benefit of using aerial and satellite imagery in harbours?

<p>Providing an overview of coastal areas and environments (B)</p> Signup and view all the answers

Which method is essential for measuring physical features along the coast?

<p>Land Survey (B)</p> Signup and view all the answers

Which aspect is NOT part of the considerations for stakeholder interests in harbour limit demarcation?

<p>Ignoring recreational activities entirely (D)</p> Signup and view all the answers

Flashcards

Insurance Survey Types

Different types of surveys conducted to evaluate a vessel's insurance needs, including pre-insurance, renewal, and intermediate surveys.

Cargo Survey

A marine survey to inspect cargo quantity, condition, and stowage during loading, transport, and discharge.

Cargo

Goods transported by sea, air, or land.

Stowage

Arranging and securing cargo for safe transport within a vessel.

Signup and view all the flashcards

Draft Survey

A marine survey to determine cargo weight by measuring a vessel's draft before and after cargo loading/unloading.

Signup and view all the flashcards

Measuring Devices

Tools used to precisely measure dimensions, clearances, and structural components in marine surveys.

Signup and view all the flashcards

Moisture Meters

Tools used to determine moisture levels to identify structural defects like rot in marine assets.

Signup and view all the flashcards

Marine Survey

A general term for inspections of marine vessels, cargoes, or equipment.

Signup and view all the flashcards

Coastal Vegetation Restoration

Strategies to improve and maintain the health of coastal plant life for long-term sustainability.

Signup and view all the flashcards

Tidal Inlets

Narrow channels connecting coastal bays to the open ocean, allowing tidal water flow.

Signup and view all the flashcards

Tidal Inlet Management

Controlling sediment transport and coastal erosion in tidal inlets through dredging or jetty construction.

Signup and view all the flashcards

Integrated Coastal Zone Management (ICZM)

A strategy to balance social, economic, and environmental needs in coastal areas to ensure sustainable development.

Signup and view all the flashcards

Sea Level Rise

The gradual increase in global sea level caused by melting ice and water expansion.

Signup and view all the flashcards

Extreme Weather Events

Increased frequency of strong storms, hurricanes, cyclones, and tsunamis.

Signup and view all the flashcards

Coastal Erosion

Increased wearing away of coastal land due to waves and currents.

Signup and view all the flashcards

Saltwater Intrusion

Saltwater entering freshwater sources, negatively impacting drinking water supplies.

Signup and view all the flashcards

Shoreline Erosion

The most common type, where waves and currents directly erode the coastline.

Signup and view all the flashcards

Bluff Erosion

Erosion of steep coastal cliffs (bluffs) causing collapses.

Signup and view all the flashcards

Dune Erosion

Erosion of coastal sand dunes by waves and tides, weakening their protection.

Signup and view all the flashcards

Coastal Retreat

The gradual movement of the coastline inland over time.

Signup and view all the flashcards

Headland Erosion

Erosion of rocky coastal extensions (headlands) due to wave actions from multiple directions.

Signup and view all the flashcards

Siltation

The process where eroded sediments are deposited elsewhere, often in slow-moving water.

Signup and view all the flashcards

Erosion-Siltation Relationship

Erosion transports sediment, leading to siltation in other areas, while excess siltation can worsen conditions, leading to more erosion.

Signup and view all the flashcards

Water Quality Impairment

Excess nutrients from sediment runoff lead to algal blooms, reducing water clarity and increasing turbidity, impacting water quality.

Signup and view all the flashcards

Coastal Infrastructure Damage

Erosion can undermine coastal structures like roads, bridges, and utilities, leading to instability, costly repairs, and safety risks.

Signup and view all the flashcards

Beach Loss and Tourism

Siltation and erosion reduce beach space, impacting tourism and local economies dependent on beach-based activities.

Signup and view all the flashcards

Navigation Challenges

Excessive sediment fills navigation channels and harbors, shallowing waters and making it difficult for ships to navigate and access ports.

Signup and view all the flashcards

Sediment Runoff

The movement of sediment from land to water, primarily caused by erosion, siltation, or a combination of both.

Signup and view all the flashcards

Algal Blooms

Rapid growth of algae caused by excessive nutrients in water, often leading to harmful effects on aquatic ecosystems.

Signup and view all the flashcards

Turbidity

The cloudiness or haziness of water caused by suspended particles, like sediment.

Signup and view all the flashcards

UNCLOS

The United Nations Convention on the Law of the Sea, an international treaty outlining the rights and responsibilities of coastal states and governing maritime activities, including port boundary demarcation.

Signup and view all the flashcards

IMO

The International Maritime Organization, a UN agency responsible for creating regulations and guidelines pertaining to the technical aspects of harbor limit demarcation.

Signup and view all the flashcards

What impacts harbor limit demarcation?

The considerations in demarcation are navigational safety, environmental conditions, and legal frameworks.

Signup and view all the flashcards

Navigational Safety in Demarcation

Ensuring safe navigation within port limits by considering water depths, underwater obstructions, tides, currents, and channel widths.

Signup and view all the flashcards

Environmental Considerations in Demarcation

Protecting the environment and marine ecosystems by considering sensitive habitats, protected species, and ecological conservation areas.

Signup and view all the flashcards

Local Law in Demarcation

Specific laws governing individual ports, addressing detailed aspects of port operations, zoning, restrictions, and environmental considerations.

Signup and view all the flashcards

National Law in Demarcation

Laws that govern port operations, maritime safety, environmental protection, and security in a country.

Signup and view all the flashcards

Demarcation of Harbour Limits

The process of defining and marking the boundaries of a port area.

Signup and view all the flashcards

Stakeholder Input

Gathering input from all involved parties (like port authorities, shipping companies, and local communities) to ensure their needs and concerns are considered during harbour limit demarcation.

Signup and view all the flashcards

Coastal Dynamics

The ever-changing nature of the coastline, including erosion, sedimentation, and shoreline changes, which impacts harbour boundaries.

Signup and view all the flashcards

Technological Advancements

Incorporating modern technologies, like real-time positioning systems, to improve the accuracy, reliability, and efficiency of navigational information within harbour limits.

Signup and view all the flashcards

Geodetic Survey

Using GPS to establish control points and reference coordinates for harbour limit demarcation, creating the foundation for accurate boundary determination.

Signup and view all the flashcards

Bathymetric Survey

Mapping the depths and underwater topography of the harbour area, essential for identifying safe navigable waters and potential hazards.

Signup and view all the flashcards

Land Survey

Measuring and documenting physical features, landmarks, and structures along the coast or within the port area, using tools like total stations and theodolites.

Signup and view all the flashcards

Aerial and Satellite Imagery

Using high-resolution aerial photographs and satellite imagery to get a broad overview of the coastal area and its surrounding environment for harbour limit demarcation.

Signup and view all the flashcards

Methods and Techniques

A combination of surveying, mapping, and navigational tools, such as geodetic surveys, bathymetric surveys, land surveys, and aerial imagery, are used to establish harbour boundaries.

Signup and view all the flashcards

Study Notes

Course Information

  • Course Title: Marine Surveying
  • Course Code: GSV 542
  • Academic Year: 2017/243473
  • Lecturer: Dr. Amos Ugwuot
  • Institution: University of Nigeria, Enugu Campus, Faculty of Environmental Sciences, Department of Geoinformatics and Surveying

Table of Contents (Chapter Breakdown)

  • Chapter 1: Introduction to Marine Surveying
    • Definition and scope of marine surveying
    • Importance and role of marine surveyors
    • Types of marine surveys
    • Tools and techniques in marine surveying
    • Applications of marine surveying
  • Chapter 2: Coastal Engineering
    • Introduction to coastal engineering
    • Reasons for and importance of coastal engineering
    • Coastal structures
    • Coastal processes
    • Coastal erosion
    • Coastal protection measures
    • Climate change and coastal adaptations
    • Coastal Adaptation Strategies
    • Harbour and port development
  • Chapter 3: Siltation and Erosion
    • Introduction
    • Types of coastal erosion
    • Causes of siltation and erosion in coastal environments
    • Human-induced causes of siltation and coastal erosion
    • Coastal development and its impact on siltation and coastal erosion
    • Impact of siltation and erosion on coastal ecosystems and infrastructure
    • Measurement and monitoring of siltation and coastal erosion
    • Mitigation strategies for siltation and coastal erosion
  • Chapter 4: Coastal Zone Management
    • Overview
  • Chapter 5: Demarcation of Harbour Limits
    • Legal framework
    • Considerations in demarcation
    • Methods and techniques used
  • Chapter 6: Shipping and Harbour Laws
    • Introduction
    • International conventions and treaties
  • Chapter 7: Large-Scale Surveys - Dredging, Effects of Wind and Wave, On Sea Bed, Tidal Current Measurement, Introduction, Oceanography
  • Chapter 8: Applications of Marine Surveying
    • Vessel inspection
    • Cargo surveys
    • Port and harbour assessments
    • Marine insurance
    • Offshore exploration and construction
    • Environmental impact assessment
    • Salvage and wreck removal
    • Marine research and exploration
    • Coastal and shoreline management
    • Legal and dispute resolution

Chapter One: Introduction to Marine Surveying (Detailed)

  • Marine surveying includes inspecting ships, boats, and marine structures
  • Objective: to assess vessel safety, regulatory compliance, and provide information for transactions (purchase, insurance, claims)
  • Marine surveyors advise shipowners, buyers, insurers, and maritime authorities

Chapter 2: Coastal Engineering (Detailed)

  • Coastal engineering applies various fields to manage and protect coastal environments
  • A multidisciplinary field dealing with erosion, flooding, and climate change
  • Objectives: coastal erosion protection, storm surge control, sustainable development, harbour and port development, ecosystem conservation
  • Coastal structures include seawalls, revetments, breakwaters, groins, and jetties

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

GSV 542 - Marine Surveying (Draft 4) PDF

Description

Test your knowledge on Marine Surveying with this quiz focused on Chapter 1. Explore the definition, importance, and types of marine surveys, as well as the tools and techniques used in this field. Perfect for students enrolled in GSV 542.

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser