Coasts onions and outputs and more

Inputs

wind-generated waves, sediment carried by rivers and waves

Outputs

ocean currents, evaporation, eroded material taken to sea

Open System

A system in which both mass and energy can be transferred across its boundaries.

Dynamic Equilibrium

A state in which the forces within a system balance each other, maintaining stability.

Feedback Mechanisms

Processes that determine the behavior of a system, including negative and positive feedback loops.

Negative Feedback Loop

Responses to change within a system that work to restore balance and return to the original state.

Positive Feedback Loop

Responses within a system that exacerbate changes, driving the system further away from its original state.

Erosional Landscapes

Landforms created primarily by the forces of erosion, such as cliffs and wave-cut platforms.

Depositional Landscapes

Landforms created by the accumulation of sediment, such as beaches and deltas.

Sediment Transport

The movement of solid particles, typically due to water, wind, or ice, across different parts of a system.

Coastal System

The interaction between land and sea involving inputs, processes, stores, and outputs.

Hydrosphere

The system comprising all water bodies on Earth, including oceans, lakes, and rivers.

Biosphere

The global sum of all ecosystems, where life exists and interacts with other systems.

Geosphere

The solid part of the Earth's structure, encompassing rocks, minerals, and the ground.

Wave Dominated

A coastal environment primarily shaped by ocean waves.

Tide Dominated

A coastal environment primarily influenced by tidal movements.

Wind Dominated

A coastal setting significantly affected by wind patterns and actions.

Erosion

The process of wearing away rocks and soil by wind, water, or other natural agents.

Deposition

The geological process in which sediment, soil, and rocks are added to a landform or land mass.

Clastic Sediment

Fragments of rocks and minerals that are transported and deposited by natural forces.

Submergent Coastlines

Coastlines that are gradually sinking below sea level.

Emergent Coastlines

Coastlines that are rising above sea level, often due to geological uplift.

Marine Inputs

Elements originating from the ocean that contribute to the coastal system, such as sediment from erosion.

what are negative feed back loops

where changes are met with responses that redress the balance and lead the system back towards the original state. -

What are positive feed back loops

one change away from the original state triggers another change which leads even further away and the system appears unable to find redress.

All beaches exist in a dynamic equilibrium involving four factors

•The energy of the waves

•Changes in sea-level.

•The location of the shoreline.

•It is the balance of these four factors and how they interact with each other that determines whether a beach erodes or grows.

Define wave action

Wave Action refers to the movement and energy of ocean or sea waves as they interact with the coastline. This process plays a key role in shaping coastal landforms through:

• Erosion: Waves can remove sediment and rock from the shore, gradually wearing away cliffs and beaches.

• Transportation: The energy of waves can move sediment along the coast (a process known as longshore drift).

• Deposition: When wave energy decreases, sediments carried by the water can settle, forming features like beaches and sandbars.

define the term tides

regular , predictable fall and rise of sea levels caused by the gravitaional pull of the moon and the lesser pull of the sun

explain the gravitational forces of tides

Define the term sediment cell.

A sediment cell is a stretch of coastline often bordered by two headlands where the movement of sediment is contained within the boundaries.