What factors affect the appearance of a shoreline?
- The rock type/geology (see map below). …
- The fetch of the wave and the strength of the wind. …
- The angle of the slope – steep slopes erode more violently and frequently.
- Weather conditions – freezing temperatures and heavy rain increase weathering and the rate of erosion.
What shoreline process is likely occurring at the cliffs along the western coast left side of Island )?
In the coastlines investigation what coastline process is likely occurring at the cliffs along the western coast (left side of island)? an island flanked by coral sank. Which of the following is not a possible source of large stones along a shoreline?
Which of the following are true regarding wind action along a shoreline?
Which of the following are true regarding wind action along a shoreline? Low- to moderate-strength wind cannot dislodge sand that is wet. Wind is more effective at moving sediment above the shoreline where the sand is dry and loose. Wind is common along shorelines.
Which of the following is true regarding the erosion impacts that occurred as a result of Hurricanes Irene Isaac and Sandy?
Which of the following is true regarding the erosion impacts that occurred as a result of Hurricanes Irene Issac and Sandy? Many homes along the coast which were at the lowest elevations were destroyed by storm surge and subsequent erosion.
What is shoreline changes?
How does vegetation affect the coastline?
Vegetation can be important to stabilizing coasts because they allow flocculation which is the binding sediment together in bigger clusters making them stay put where they are as they become heavier and harder to be transported by wind or water- plants and vegetation also stabilize sediment in water because the plants …
How can climate influence the processes along coastal landscapes?
it controls the amount of precipitation which affects the amount of erosionB. it affects the size and intensity of stormsC. wet climates result in more vegetation which may stabilize the soilD. melting glaciers cause sea level to riseE.
Which of the following is true about how coasts are affected from the water side quizlet?
Which of the following is true about how coasts are affected from the water side? Waves can erode deposit or simply transport sediment.
What is one of the most important aspects about West Antarctica with respect to global sea level quizlet?
What is one of the most important aspects about West Antarctica with respect to global sea level? It has large floating ice shelves that could be detached and melted.
How do waves affect shorelines?
Waves are important for building up and breaking down shorelines. Waves transport sand onto and off of beaches transport sand along beaches carves structures along the shore. … This slows down the inshore part of the wave and makes the wave “bend.” This bending is called refraction.
Which of the following shoreline features is a result of erosion?
Shoreline Features. What are common features caused by erosion? Shore platform sea cave sea arch and sea stack.
How do waves erode shorelines?
Destructive waves erode through four main processes Hydraulic Action Compression Abrasion and Attrition. … Abrasion is when rocks and other materials carried by the sea are picked up by strong waves and thrown against the coastline causing more material to be broken off and carried away by the sea.
Which of the following is the primary source of shoreline erosion?
Coastal erosion may be caused by hydraulic action abrasion impact and corrosion by wind and water and other forces natural or unnatural. On non-rocky coasts coastal erosion results in rock formations in areas where the coastline contains rock layers or fracture zones with varying resistance to erosion.
How do barrier spits form?
Barrier Spits. Barrier spits are depositional formations caused by the lateral movement of water along a shoreline known as littoral drift. … Instead the waves hit the shoreline at an angle causing a lateral movement of water and sediment in the direction the wave motion is angled toward.
What processes move sediment along a shoreline?
Sediments may therefore be derived from the land and delivered via rivers glaciers and shoreline erosion and from marine organisms in the sea. Once at the shore they are moved onshore by wave tide and wind driven currents to form beaches.
How do shorelines change?
The Nature of Shoreline Change. The natural character of sandy beaches is to change shape constantly and to move landward (retreat) or seaward (advance). The changes are caused by changes in the forces that move the sand namely wind waves and currents and by the supply of sand.
What is considered shoreline?
Definition of shoreline
(Entry 1 of 2) 1 : the line where a body of water and the shore meet. 2 : the strip of land along the shoreline.
Why do waves approaching the shoreline often bend and what is the effect of wave refraction along a coastline?
Why do waves approaching the shoreline often bend? As speed and length of the wave diminish the wave steadily grows higher. Finally a critical point is reached when the wave is too steep to support itself and the wave front collapses or breaks causing the water to advance up the shore.
How does geological structure affect coastal landforms?
Geology The geological structure of coasts and the types of rock found there influence the erosion landscapes formed. Soft rock— Easily eroded cliffs will be less rugged and less steep. These landscapes include bays. … Rocks with more joints and faults are eroded quickly compared to rocks with few faults and joints.
What factors affect coastal erosion?
What happens to coastal landforms when the sea level rises?
Impacts from sea level rise include land loss through submergence and erosion of lands in coastal areas migration of coastal landforms and habitats increased frequency and extent of storm-related flooding wetland losses and increased salinity in estuaries and coastal freshwater aquifers.
How does the sea affect the coastline?
Global warming causes sea-level rise as oceans expand and makes storm patterns more energetic. Consequently it will affect most of the world’s coastlines through inundation and increased erosion. … Coastal flooding is somewhat easier to predict than erosion since inundation can be estimated using coastal contours.
How does climate change affect coastal erosion?
An increase in intense events associated with climate change will have direct physical impacts on the coast exacerbating coastal erosion. As well as direct physical damage more intense rainfall events can potentially influence sediment dynamics and quantity and quality of terrestrial runoff.
How does land affect coastal waters?
Modifications on land including dams sand and gravel mining and paving many coastal watersheds continuously diminish sediment input into coastal areas while coastal armoring and placement of hard structures along the coast exacerbate coastal erosion and impede natural sediment transport.
What does lidar data tell us about shorelines?
What does LIDAR data tell us about shorelines? Ice has a higher albedo than water so replacing ice with water causes the surface to warm. Which of the following is true about biomes in general?
Which of the following is true about how contamination moves in groundwater?
Which of the following is true about how contamination moves in groundwater? Contamination spreads out as it moves forming a widening plume.
How did the sea cave in this photograph form quizlet?
What is the main way that position of the continents can influence global sea level?
What is the main way that position of the continents can influence global sea level? Continents at high latitudes provide a setting in which large ice sheets can form.
How do most uranium deposits form quizlet?
How do most uranium deposits form? sediments. Oil degraded by bacteria which consume the lighter components of the oil leaving a thick sludge.
What feature will be formed by the sediment carried along the sides of this glacier?
A moraine is material left behind by a moving glacier. This material is usually soil and rock. Just as rivers carry along all sorts of debris and silt that eventually builds up to form deltas glaciers transport all sorts of dirt and boulders that build up to form moraines.
How do wave deposits affect a shoreline?
What Are the Effects of Wave Deposition? Waves carry many materials such as sand shells and small rocks. When the waves deposit these materials on the shoreline a beach forms. A beach is any area of shoreline that is made of material deposited by waves.
What is a depositional shoreline?
How does building beach houses affect the shoreline?
Shoreline structures are built to alter the effects of ocean waves currents and sand movement. They are usually built to “protect” buildings that were built on a beach that is losing sand. Sometimes they are built to redirect rivers and streams. Other times they are constructed to shelter boats in calm water.
How is the shoreline affected by coastal processes and hazards?
Low water levels present a hazard to navigation and water supply intakes and limit riparian landowners’ access to the lake. High lake levels cause widespread flooding and bluff erosion. During these high water periods storm surge and storm waves can cause severe property damage and shoreline erosion.
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