Waves
This is the distance of open sea over which the winds blow?
Fetch
This is definition of the coastal zone?
The interface (the area of land) between the land and the ocean.
These are three actions carried out by a wave along a coast
Erosion, Transportation & Deposition.
This coastal Landform is like a cliff?
Headland
This is the main argument against seawalls
They cost a large amount of money to build and maintain
This is the main natural force in creating waves?
Winds
This is the term for the deepening or widening of a river or harbour?
Dredging
This natural process involves the wearing away of the land by the sea. It often involves destructive waves wearing away the coast
Erosion
This coastal Landform is first formed along a headland when wave begin to erode?
Caves
These are three ways a beach can be re-profiled (rebuilt to prevent the sand receding)?
- Beach sand nourishment by dredging sand from the ocean
- Planting of vegetation
- Fencing off damaged areas
- Sand being transferred from one part of a beach to another
This is the vertical distance between the crest and trough of a wave
Wave Height
This explains the process of longshore drift? Explain the process or steps involved
The transportation of sediments/sand along the shoreline. The prevailing comes from the ocean, the swash come in at 45 degrees angle, perpendicular backwash and transports and deposits the sand along the beach
This is process by which small rocks and pebbles are bounced along the sea bed in a leap frog motion.
Saltation
These are coastal Landforms that are created by waves eroding softer rocks at faster rate than hard rocks creating an indentation in the coastline?
Bays
These would be two stakeholders for a beach in Byron Bay, NSW?
- Byron Shire Council, local council
- NSW National Parks and Wildlife Services
- Traditional owners of the land
- Tourists
- Local residents
These are the characteristics of a destructive wave?
Weak swash, strong backwash. The strong backwash removes sediments from the beach; hence being called destructive.
These are the dominant winds affecting the development of waves along the country's east coast?
North-East Trade Winds
This costal process consists of the transportation of sediments along a coast parallel to the shoreline through the movements of waves?
Longshore drift
This coastal Landform is formed before an the backs of two caves meet at an headland?
Arch
These are two coastal erosion solutions
- Jetties
- Rockwalls
- Beach nourishment
- Groyne
- Coastal blanket
- Sand bagging
- revetments, rip rap, gabions, breakwaters
These are the characteristics of Constructive waves
Strong swash, weak backwash. The strong swash spread sediments along the coast being called constructive.
low wave frequency
low wave height
long wave length
These are the name of Bays outside the parish of St. Ann
Morant Bay
Montego Bay
Lucea
Annatto Bay
This is the process of moving sediments from one location to another. Primarily through the natural forces of waves and wind.
Deposition
This coastal Landform is formed from a wave cut notch along a sea cliff?
Wave cut platform
This is what they did do to Florida's beach to support its receding coastline? Is this a long term solution or a short term solution? and Why?
Beach replenishment. It is a short term solution as it last only for so many years and it is expensive and needs to be built up every 20-40 years.