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2.3- catchment area of the Rhine - part 2
2.3: catchment area of the Rhine
- repeating meanders, oxbow lakes, upper- middle- and lower course
- Explanation and quiz questions about: Gradient and fall, horsts and graben, flow rate
- Answer questions: 2, 5, 8, 9 (homework)
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Aardrijkskunde
Middelbare school
vwo
Leerjaar 2
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2.3: catchment area of the Rhine
- repeating meanders, oxbow lakes, upper- middle- and lower course
- Explanation and quiz questions about: Gradient and fall, horsts and graben, flow rate
- Answer questions: 2, 5, 8, 9 (homework)
Slide 1 - Slide
What is sediment?
Give 3 examples
Slide 2 - Open question
Upper reaches
Middle reaches
Lower reaches
Here is the source of the river
Water flows slowly
Here is the river mouth
Rivier takes as much material as it leaves
This is where the river meanders
Slide 3 - Drag question
Horsts and Graben
Graben = when a part of the land is sinking in the earth
Horsts: the parts of land next to a Graben. These parts stay high
Slide 4 - Slide
Sleep de begrippen naar de juiste plek.
Horst
Graben
Slide 5 - Drag question
Horst
Graben
Horst
Slide 6 - Drag question
Watch the video on the next slide
How does the landscape change from Rotterdam to Basel when a ship follows the Rhine?
Slide 7 - Slide
Slide 8 - Video
Fall and gradient of a river
Upper course
Fast flow - steep river -large gradient
Lower course:
Slow flow - gentle slope - small gradient
Fall
= difference in height between 2 places in the river
Gradient
= fall per kilometer
Slide 9 - Slide
The fall is highest here
The fall is smallest here
The gradient is lowest here
Slide 10 - Drag question
Slide 11 - Slide
A lot of erosion
Flows slowly
Wide valley
Flows fast
Small gradient
Large gradient
A lot of sedimentation
Slide 12 - Drag question
Q. 8
Calculate fall
Altitude A - altitude B
Calculate gradient
Fall / length of the river AB
Gradient = ... m/km
Slide 13 - Slide
Q. 8
Calculate fall
2500m (alt. A) - 1500 (alt.B)
= 1000 m
Calculate gradient
1000m (fall) / 250 km (length AB)
1000/250=4 m/km of river
Slide 14 - Slide
Gradient
Fall
The height difference between 2 places in the river.
The average height difference per kilomter of river
Slide 15 - Drag question
River regime
= The pattern of how much water is flowing through the river throughout the year
Slide 16 - Slide
Slide 17 - Slide
IIn these graphs you see the regime of 3 rivers. Decide for each graph what kind of river flows through there.
Glacier-fed river
Rain-fed river (seaclimate)
Rain-fed river (tropical climate)
Slide 18 - Drag question
2.3: catchment area of the Rhine
- repeating meanders, oxbow lakes, upper- middle- and lower course
- Explanation and quiz questions about: Gradient and fall, horsts and graben, flow rate
- Answer questions: 2, 5, 8, 9 (homework)
Slide 19 - Slide
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