What is a coastal enquiry?
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What is a coastal enquiry?
A coastal enquiry involves fieldwork to investigate aspects of the coast like processes, landforms, and management strategies.
What are aims in the context of a coastal enquiry?
Aims are focused on a particular place for investigation, such as exploring coastal processes on a specific beach.
What is a null hypothesis?
A null hypothesis is a statement that is the opposite of the hypothesis, to avoid bias in data collection. For example, 'Coastal management strategies used at Y beach have not taken conflicting views into account'.
True or False?
All parts of the coast need to be sampled in a coastal enquiry.
False.
It is not practical to sample all parts of the coast, so sampling strategies like systematic or random sampling are used.
What equipment is used for coastal fieldwork?
Equipment includes:
Tape measure
Compass
Ranging poles
Clinometer
Callipers
Quadrats
Recording sheets
Camera
Define stratified sampling for a coast enquiry.
Stratified sampling for coasts means dividing sampling sites into groups, like three sites from each section of the beach.
What risks are associated with coastal fieldwork?
Risks include:
Tides
Weather
Slippery rocks
Polluted water
Working in unfamiliar places
Equipment misuse
How would systematic sampling be carried out in a coastal enquiry?
Systematic sampling means sampling sites at regular intervals along the stretch of coast.
What is opportunistic sampling?
Opportunistic sampling is when sites are selected for ease or convenience. For example, they are easy sections of the beach to access.
True or False?
'To explore the impact of coastal processes on Y beach' is an example of a hypothesis.
False.
'To explore the impact of coastal processes on Y beach' is an example of an aim.
What is a beach profile?
A beach profile uses distance and angle measurements to identify the shape of the beach.
How are beach profiles measured?
Beach profiles are measured by taking readings along transect lines from the sea to the end of the beach.
What is meant by sediment analysis?
Sediment analysis examines how beach material is sorted across the beach width, linking to longshore drift.
True or False?
Measuring longshore drift involves marking pebbles.
True.
Measuring longshore drift involves marking pebbles, releasing them, and measuring their movement.
What data is collected to examine the effect of groynes?
Data collected to examine the effect of groynes includes measuring the height of beach material on either side.
What is rip-rap?
Rip-rap, or rock armour, refers to boulders used for coastal defence.
How is rip-rap data collected?
Rip-rap data collected includes measuring boulder dimensions and angle facing waves.
What graph type shows continuous data well?
Line graphs show continuous data well, displaying changes over time or space.
How are scatter graphs used to examine coastal data?
Scatter graphs are used to show the relationship between two coastal variables, like beach slope and pebble size.
What secondary data sources are useful for coasts?
Useful secondary data includes old photos, maps, weather data from the Met Office, aerial photos.