Coastal Processes
What are the characteristics of constructive waves?
Formed by weaker winds
Low frequency, long wavelength
Low wave height
Stronger swash than backwash
Deposits sediment on the shore
Examples include calm days at the beach
Identify the main cause of climate change
Generating electricity and heat by burning fossil fuels such as coal, oil and natural gas.
Identify ONE advantage and ONE disadvantage of reestablishing vegetation
ADVANTAGES- natural, cheap, creates a habitat for animals, trees absorb carbon.
DISADVANTAGES- sea levels will still contunue to rise, needs to be maintained, can be destroyed in the event of large storms.
Identify ONE positive impact of Tourism on the coastal environment in Byron Bay
Tourism encourages the local council to act on the issue of beach erosion
What do you have to do to answer an 'identify' question?
Recognise and name
What are the characteristics of destructive waves?
Formed by stronger winds
High frequency, short wavelength
High wave height
Backwash is stronger than swash
Erodes segment from the shore
Examples include storms
Why are trees an important part of the carbon cycle?
Trees absorb carbon dioxide which helps to remove the amount of carbon dioxide in the air released from the burning of fossil fuels
ADVANTAGES- cheap, holds the sand in place and allows plants to be grown on top.
DISADVANTAGES- can be costly (machinery), will need to be maintained as they can be punctured
Identify ONE negative impact of tourism on the coastal environment in Byron Bay
What do you have to do to answer an 'explain' question?
What is erosion?
Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water.
What is the Paris Agreement?
The Paris Agreement is an international treaty on climate change that was signed in 2016. The treaty covers climate change mitigation, adaptation, and finance. The Paris Agreement was negotiated by 196 parties at the 2015 United Nations Climate Change Conference near Paris, France
Identify ONE advantage and ONE disadvantage of rock armour
ADVANTAGES- absorbs wave energy, easy to maintain, long term solution.
DISADVANTAGES- Rocks will need to be taken from elsewhere, adverse aesthetic, expensive, no vegetation.
When we did the car tally on our excurison which state did most people come from?
QLD
What do you have to do to answer an 'account for' question?
Explain the process of longshore drift
Longshore drift occurs when.
Waves approach the beach at at an angle
Sediment is carried up the beach at an angle with the swash (a rush of seawater that travels up the beach after the wave has broken).
The sediment travels with the backwash (when the seawater runs back towards the sea). The backwash travels down the beach in a straight line due to gravity.
The process continues and sediment moves along the beach.
Outline the effects of climate change on coastal environments
Sea level rise
Warming ocean temperatures
Ocean acidification
Increased likelihood of natural disasters- more frequent and intense storms
= INCREASED EROSION
EFFECTS:
- Loss of habitat
- Loss of properties
Identify ONE advantage and ONE disadvantage of building relocation
ADVANTAGES- Protects properties, no cost to council.
DISADVANTAGES- Does not stop erosion, expensive for the home owner.
Identify TWO ways that climate change could impact tourism in Byron Bay
Climate change and rising ocean temperatures may affect the level of biodiversity that is able to survive in our oceans. This will affect the businesses who run snorkelling tours etc.
Climate change is affecting the timing and migration of whales which may tourists come to observe from June- October. This will affect the number of tourists but also the businesses that run whale tours.
What do you have to do to answer an 'analyse' question?
Provide THREE examples of coastal landforms formed through the process of deposition.
Spit
Sand bar
Beach
Sand dunes
Identify 3 coastal management strategies used to prevent coastal erosion
Reestablish vegetation cover
Sediment fence and formal beach access ways
Sand nourishment
Geotextile bags
Rock armour
Constructed sea wall
Building relocation
Identify one advantage and one disadvantage of a groyne
ADVANTAGES- Prevents sand from moving down the beach in the process of longshore drift to prevent erosion (e.g. Main Beach, Byron Bay)
DISADVANTAGES- Causes erosion on the other side of the groyne (e.g. Belongil Beach)
Define 'stakeholder'
A person with an interest or concern in something
What do you have to do to answer an 'assess' question?
Make a judgement of value, quality, outcomes, results or size.