✅COASTS 3.1.3.1 - Coasts as Natural Systems Flashcards

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1
Q

What type of system is the coast?

A

An open system

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2
Q

What effect can feedbacks have on a system?

A

They can increase or decrease available inputs or outputs as well as enabling equilibrium

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3
Q

What type of events alter the coastline on a short term basis?

A

Storms

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4
Q

What can dynamic equilibrium be affected by over geological (longer) time periods?

A

Supply of sand
Energy of the waves
Sea level change
Location of the shoreline

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5
Q

What is a landform?

A

Individual features which are created by coastal processes

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6
Q

What is a landscape?

A

The entire area of sea, coastline and immediate land behind the sea front. Within the landscape are characteristic landforms

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7
Q

What are flows/transfers?

A

Processes of movement within a system

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8
Q

What are stores/components?

A

Parts of a system not necessarily in motion

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9
Q

What are some of the inputs into the coastal system?

A

waves, tides, currents
Wind
Precipitation
Fluvial (river) Sediment
human pollution

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10
Q

What are some of the flows/transfers in the coastal system?

A

Erosion
weathering
Longshore drift
Mass movement
Ocean currents
Riptides
transportation
deposition

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11
Q

What are some of the outputs from the coastal system?

A

Evaporation
Sediment transfer
tides, waves, currents

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12
Q

What are some of the feedbacks in the coastal system?

A

Coastal management increasing erosion rates elsewhere

Mass movement decreasing erosion

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13
Q

What are some of the stores in the coastal system?

A

Beaches
Sand dunes
Spits, bars, tombolos
cliffs, headlands, bays
wave-cut notch platforms

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14
Q

What is a sediment budget?

A

The amount of sediment in a sediment cell. Assesses gains & losses of sediment.

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15
Q

What is a sediment Cell?

A

Areas of coast where the movement of sediment is almost contained and flows in dynamic equilibrium, a closed system. There are 11 on coast of England and Wales. Often enclosed by physical features like headlands. Can be divided into subcells.

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