theme 1,4 uk landscapes Flashcards
relief
height and shape of the land
upland
an area of high or relatively high ground
lowland
an area of land that is lower than the land around it
geology
the types of rock that can be found in an area
management methods for protecting an area
protect area status, limiting tourism numbers, maintaining footpaths, education (signs and rules), car parks.
honeypot site
a place that attracts a lot of people - eg buckingham palace, the hollywood sign.
source
where a river begins
tributary
where a small river joins with a bigger river
drainage basin
an area of land that is drained by a river and its tributaries.
mouth
where a river meets the sea
confluence
where 2 or more rivers merge
watershed
the boundary of a rivers drainage basin and is usually along a ridge of highland
abrasion
the scraping away of river banks and bed by stones picked up in the river flow
hydraulic action
the force of the water in the channel hits against the bed and banks - wearing them away
corrosion
the dissolving of minerals of rocks being carried away in solution
attrition
rocks bang against eachother gradually breaking down into smaller, more rounded shapes.
upper course
section at the beginning of a river, near the source. usually upland.
middle course
between upper and lower course, water flows slowly. wider than upper course
lower course
final section of a river which flows into another body of water. water flows even slower, and has less energy to carry sediment.
long profile of a river
a summary of the shape and gradient of a river bed from source to mouth
cross profile of a river
the appearance of a river from the side of a river bank to another
vertical erosion
downward erosion that deepens the channel. it is a v-shaped valley.
lateral erosion
the sideward erosion which widens the river channel
traction
rocks rolled along the river bed
saltation
smaller rocks/pebbles bounced along the river bed
suspension
smaller particles suspended in flow