corrosion- is a wearing away of small/fine particles of rock on a by a sandpapering action called abrasion,
deposition- is the geological process by which material is added to a landform.
destructive waves- A plunging wave, with a short wavelength, a high frequency and a high crest, which breaks so that the water crashes downwards from the wave crest and erodes the beach
erosion- The group of natural processes, including weathering, dissolution, abrasion, corrosion, and transportation.
fetch-often called the fetch length, it means the length of water which can give wind blown.
foredune- A dune ridge built up behind a coastline. Generally higher and more extensive than a beachridge.
hydraulic action- is a form of erosion caused by the force of moving water currents rushing into a crack in the rock face.
longshore drift- is the movement of sediments, usually sand, along a coast parallel to the shoreline.
refraction- Refraction is the change in direction of a wave due to a change in its speed.
surf and swash zone- Swash (uprush and backwash), in geography, is the water that washes up on shore after an incoming wave has broken.
vegetation succession- The gradual evolution of a series of plants within a given area
wave height- The height of the wave.
wavelength- The length of the wave.
7.1
Breakwaters- Breakwaters are structures constructed on coasts as part of coastal defence or to protect an anchorage from the effects of weather and longshore drift.
faecal coliform- A fecal coliform is a facultatively-anaerobic, rod-
silting - Silt is granular material of a grain size between sand and clay derived from soil or rock.
tidal flushing – The action of saltwater entering an estuary twice a day during the high tides.
7.2
ground swell - A broad deep undulation of the ocean, often caused by a distant storm or an earthquake.
plunging waves - A plunging wave occurs when the ocean floor is steep or has sudden depth changes
spilling waves - Spilling waves occur when the crest tumbles down the front or face. Spilling waves will usually form as the tide recedes leaving less water on banks on which waves are breaking
surging waves - A rise above normal water level on the open coast due only to the action of wind stress on the water surface
wind swell - In fluid dynamics, wind waves or, more precisely, wind-generated waves are surface waves that occur on the free surface of oceans, seas, lakes
7.3
aeolian - ?
spinifex - Spinifex is a genus of perennial coastal grasses.
7.4
dredging - Dredging is an excavation activity or operation usually carried out at least partly underwater,
erosion-accretion cycle-
groynes - A groyne is an active structure extending from shore into sea, most often perpendicularly or slightly obliquely to the shoreline.
revegetation - Revegetation is the process of replanting and rebuilding the soil of disturbed land. This may be a natural process produced by plant colonization
sea walls - Seawalls or Sea Walls is a term used to describe an embankment that prevents the erosion of a shoreline by water.
7.7
environmental impact study – The study of the environmental impacts
impact assessment - Impact assessment is the process of identifying the future consequences of a current or proposed action.
7.8
7.8
bitou bush - Bitou bush was once used to stabilise sand dunes, but has now become a significant weed in coastal areas.
marram grass - A type of grass that grows and survives in the desert, sand.
noxious weed - A noxious weed is an invasive species of a plant that has been designated by county, state or provincial.
7.9
7.9
anemometer - An anemometer is a device for measuring wind speed, and is a common weather station instrument.
hygrometer - A Hygrometer is an instrument used for measuring the moisture content in the environmental air, or humidity. 
No comments:
Post a Comment