Edexcel Geography A-Level - coastal landscape rose

studied byStudied by 5 people
4.0(1)
get a hint
hint

coasts

1 / 102

Tags and Description

rose flashcards

103 Terms

1

coasts

interface between land and sea where both marine and terrestrial processes interact

New cards
2

Discordant coastline

the layers of rock are perpendicular to the direction of the coastline.

New cards
3

Concordant coastline

Have alternating layers of hard and soft rock that run parallel to the coast.

New cards
4

lithology

The make up of each individual rock type

New cards
5

structure

way rocks are geologically arranged

New cards
6

differential erosion

How different materials erode at different rates

New cards
7

dip

the acute angle that a rock surface makes with a horizontal plane

New cards
8

joint

a fracture in rock along which there has been no movement

New cards
9

fold

stacks of originally flat surfaces that are bent/curved due to deformation

New cards
10

strata

layers of sedimentary rock

New cards
11

fault

A break in the earth's crust

New cards
12

bedding plane

longer or shorter pauses in deposition

New cards
13

halophytes

salt tolerant plants

New cards
14

xerophytes

plants adapted to arid environments

New cards
15

sand dune

a mound of sand piled up by the wind

New cards
16

salt marsh

an area of coastal grassland that is regularly flooded by seawater.

New cards
17

pioneer communities

first species to colonise an area

New cards
18

climax vegetation

most established/mature community, normally when vegetation is the same as the local environment

New cards
19

plagioclimax

The climax community when succession is stopped artificially

New cards
20

succession

A series of predictable and orderly changes within an ecosystem over time.

New cards
21

colonise

plants establish and take over an area

New cards
22

dominant species

the main plants/animals found in an area

New cards
23

sub aerial processes

land based processes which alter the shape of the coastline weathering and mass movement

New cards
24

weathering

the gradual breakdown of rock at or close to the ground surface

New cards
25

mass movement

the movement of weathered material down a slope, as a result of gravity

New cards
26

corrosion

the gradual wearing away of a metal element due to a chemical reaction

New cards
27

attrition

bedrock pieces are hit against one another = break apart and become more rounded

New cards
28

abrasion

The grinding away of rock by other rock particles carried in water, ice, or wind

New cards
29

hydraulic power

The sheer power of the waves breaking rock apart as they force air into cracks in the rock.

New cards
30

sediment cells

areas along the coastline and in the nearshore area where the movement of material is largely self-contained

New cards
31

traction

sediment rolls along, being pushed by waves and currents pebbles, cobbles abs boulders

New cards
32

saltation

sediment bounces along, either due to the force of water or wind sand sized particles

New cards
33

suspension

sediment is carried in water column silt and clay particles

New cards
34

solution

dissolved material is carried in the water as a solution chemical compounds in solution

New cards
35

lateral shift

net effect of the movement of sediment up and down the beach

New cards
36

Swash-aligned coasts

Wave crests approach parallel to the coast, so there is limited longshore movement of sediment

New cards
37

drift aligned coasts

waves break at an angle, so longshore drift happens consistently

New cards
38

gravity setting

large sediments deposited first, followed by smaller sediments as energy of transporting water becomes too low to move sediment

New cards
39

flocculation

depositional process that is important for very small particles, such as clay, which are so small they remain suspended in water. Clay particles clump together due to electrical or chemical attraction and become large enough to sink.

New cards
40

equilibrium

describes average condition of a system, as measured through one of its elements or attributes, over a specific period of time

New cards
41

dynamic equilibrium

when a systems inputs and outputs remain in balance - if changes do occur, then feedbacks will allow for correction

New cards
42

factors affecting dynamic equilibrium

supply of sand, energy of waves, changing sea levels, location of shoreline

New cards
43

negative feedback

control state of the system by dampening or reducing the size of the systems elements or attributes

New cards
44

positive feedback

mechanisms feed or increase the size of one or more of the systems elements or attributes over time

New cards
45

beach

small scale depositional landform consisting of loose material so morphology is altered

New cards
46

beach profile

the shape of a beach resulting from how waves break

New cards
47

factors affecting beach profiles

wave energy, size and shape of beach material, tidal range

New cards
48

berm

A nearly horizontal accumulation of sediment parallel to shore, caused by high tides

New cards
49

affect of sediment size

smaller sediment (sand) has lower infiltration rate, pebble beach has higher infiltration rate - more gaps for water to infiltrate into

New cards
50

offshore bar

created by waves offshore from the coast - destructive waves erode sand and deposit it as offshore bars

New cards
51

cuspate foreland

triangular shaped headland that extends out from the main coastline - sediment deposited at the point where they meet stabilised by vegetation growth

New cards
52

tombolo

ridge of sand forms between small island and mainland occurs by a build up of sediment from deposition

New cards
53

spit

sand moves along coast via longshore drift - when coastline changes direction the sediment builds up

New cards
54

bar

beach/spit extends across a bay to join 2 headlands

New cards
55

brackish

slightly salty, as is the mixture of river water and seawater in estuaries.

New cards
56

embryo dune

youngest dune and first stage in sand dune succession - the smallest ridge that is closest to the sea that often gets flooded by sea water

New cards
57

embryo dune characteristics

80% exposed sand, 1m high, very little moisture content, pH = 8+, lyme grass and sand couch found there

New cards
58

fore dunes

older and slightly higher dunes just shorewards of embryo dunes

New cards
59

mobile dunes

dunes that migrate over time as a result of the action of the the wind/ waves during storms or due to human activity

New cards
60

fore dune characteristics

5m high, 20% exposed sand, very little moisture, slightly alkaline, plants include marram and xerophytic species

New cards
61

yellow dune

early stage of dune succession, where little organic material has accumulated, so the sand is still yellow coloured

New cards
62

grey dunes

fixed, stable sand dunes that are covered by a continuous layer of herbaceous vegetation

New cards
63

grey dune characteristics

8-10m high, less than 10% exposed sand, increasingly acidic, vegetation = creeping fescue, sea spunge, marran

New cards
64

fixed dunes

sand dunes that are completely covered in vegetation which stabalises them and stops further movement of the sand.

New cards
65

dune slack

a depression in a sand dune system where ponds and lakes can form

New cards
66

blowout

a depression on the land surface caused by wind erosion

New cards
67

eustatic

global changes in sea level due to change in amount of water change in geometry of ocean basin

New cards
68

isostatic

changes in sea level resulting in the rise and fall of land masses

New cards
69

emergence

impact of a fall in sea level MARINE REGRESSION

New cards
70

submergence

impact of a rise in sea level MARINE TRANSGRESSION

New cards
71

glacial eustasy

when sea level changes in response to the amount of water stored in ice caps

New cards
72

LECZ

low elevation coastal zone land area and population by country that is located in coastal zone bands ranging from 1m to 20m elevation above sea level

New cards
73

storm surges

short term change in sea level caused by low pressure and the pushing of water by winds

New cards
74

causes of storm surges

depression - as pressure drops, weight of air pressure pressing down drops = sea rises tropical cyclone

New cards
75

factors affecting storm surge

high/spring tide, topography

New cards
76

mangrove

shrub/small tree that grows in coastal saline/brackish water

New cards
77

sundarbans

delta of the Ganges-Brahmaputra rivers that is a mangrove forest before flowing into the Bay of Bengal

New cards
78

polder

land created by the Dutch by draining water from an area

New cards
79

alluivum

deposits of sand, gravel + smaller sediment eg. silt

New cards
80

sediment cells - sources

sub-aerial processes, erosional processes + sediment brought to coastline by rivers FLAMBOROUGH HEAD

New cards
81

sediment cells - transfers

longshore drift, onshore and offshore winds + tides HOLDERNESS COAST

New cards
82

sediment cells - sinks

depositional landforms = spits, bars, tombolos etc SPURN HEAD

New cards
83

dredging

removal of sediment for construction processes = depth of ocean increases = increased occurrence of destructive waves as they can maintain energy closer to shoreline

New cards
84

hard engineering

building artificial structures such as sea walls aimed at controlling natural processes

New cards
85

soft engineering

a sustainable approach to managing the coast without using artificial structures

New cards
86

sustainable coastal management

managing the wider coastal zone in terms of people and their economic livelihoods, social and cultural wellbeing, and safety from cultural hazards as well as minimising environmental and ecological impacts

New cards
87

revetments

knowt flashcard image
New cards
88

offshore

away from shore

New cards
89

foreshore

That part of a shore uncovered at low tide.

New cards
90

nearshore

extends seaward from low tide shoreline to low tide breaker line

New cards
91

backshore

The part of a beach above the high tide line

New cards
92

integrated coastal zone management (ICZM)

means of holistically managing the coastline

New cards
93

shoreline management plan (SMP)

ICZM plan for a stretch of coastline in England and Wales involves detailed consultation with local interest groups so that solutions can be found that are tailored to that particular sub cell and community needs

New cards
94

winners

people who have gained from the decision, either economically, environmentally or socially

New cards
95

losers

people who are likely to lose property or perhaps see the coastline concreted over and this view is an environmental negative

New cards
96

factors considered when making decisions about coastal management

land use and value, engineering feasibility, environmental sensitivity, impacts of coastal processes

New cards
97

20 mark questions

PEACE paragraphs and SASSY conclusions

New cards
98

PEACE paragraph

P = point E = example A = application C = criticise E = evaluation

New cards
99

SASSY conclusion

S = summary A = analysis S = scale S = synoptic Y = your thoughts

New cards
100

hummus

Dark colored substance in soil from decayed organic material

New cards

Explore top notes

note Note
studied byStudied by 5 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 8 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 11 people
Updated ... ago
5.0 Stars(2)
note Note
studied byStudied by 96 people
Updated ... ago
4.5 Stars(4)
note Note
studied byStudied by 14 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 2 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 3 people
Updated ... ago
5.0 Stars(1)
note Note
studied byStudied by 4465 people
Updated ... ago
4.7 Stars(15)

Explore top flashcards

flashcards Flashcard175 terms
studied byStudied by 1 person
Updated ... ago
5.0 Stars(1)
flashcards Flashcard49 terms
studied byStudied by 2 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard30 terms
studied byStudied by 4 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard31 terms
studied byStudied by 28 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard91 terms
studied byStudied by 4 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard189 terms
studied byStudied by 19 people
Updated ... ago
5.0 Stars(2)
flashcards Flashcard115 terms
studied byStudied by 4 people
Updated ... ago
5.0 Stars(1)
flashcards Flashcard33 terms
studied byStudied by 414 people
Updated ... ago
5.0 Stars(6)