2.4(a) Coastal field work 1 - practical skills Flashcards
What tool is used for measuring pebble size in coastal fieldwork?
Callipers
What should be established before selecting sites and deciding on equipment for coastal fieldwork?
Aims and hypothesis of the fieldwork
What tool is used to give an accurate location using latitude and longitude in coastal fieldwork?
GPS (Global Positioning System)
What is the purpose of using a quadrat in coastal fieldwork?
To select sediment for sampling
What three dimensions should be measured when collecting data on rip-rap (rock armour)?
Length, height, and width of each boulder
In measuring longshore drift, what should be done to the pebbles before placing them in the swash zone?
Mark them with waterproof paint for identification
How can the effectiveness of groynes be measured in coastal fieldwork?
By measuring the height of beach material on either side of a groyne
What scale is used to classify pebble shape by eye in coastal fieldwork?
Power’s Scale of Roundness
What is a null hypothesis in coastal fieldwork?
A statement that is opposite to the hypothesis, used to ensure there is no bias when collecting evidence
What qualitative data collection methods are commonly used in coastal environment enquiries?
Photographs and field sketches
Name three potential risks associated specifically with coastal fieldwork.
Tide times, slippery rocks, and polluted water (any three from the list in the document)
In sediment analysis, what does sorting across the width of a beach link to?
Longshore drift processes
What are the three axes measured when analyzing pebble sediment?
a-axis (shortest), b-axis (widest at right angles to c-axis), and c-axis (longest)
What are the two types of data collection methods that should be included in coastal fieldwork?
Quantitative and qualitative methods
Name two common sampling strategies used in coastal enquiries.
Systematic sampling and random sampling
