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Rhone Delta Case study

Case study information for the Low-energy costal environment: Rhone Delta for OCR A-Level geography topic Costal Landscapes
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Last updated: May 7, 2026
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First submittedMay 7, 2026
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Hint
Answer
Where is it located?
Southern France
What is it the total length in km?
90
What is the total area in km*2?
1740
What type of delta is it?
Lobate
What is it predominantly formed by?
Wave deposition
What 2 major distributaries does it lie between?
River Rhone and Grand Rhone
What direction is longshore drift in cell 1?
South West to North East
What is an example of a spit in the Rhone Delta?
Gracieuse
How long is the above spit in km?
6
What port has the spit formed across the entrance to?
St Louis
What type of landforms are there lots of in cell 3?
Onshore bars
Over how many years has it been formed over?
7000
What sea is the Rhone delta located in?
Mediterranean
Does the coastline have a long or short fetch?
Short
What is the maximum lenght of this fetch in km?
900
What nature of the sea is the length of the fetch due to?
Enclosed
Is windspeeds high or low?
Low
Is kinetic and gravitational wave energy high or low?
Low
Is there high or low levels of river deposition?
High
What type of beach slope does that above lead to?
Gentle
What is the name of the dam found in the Rhone Delta?
Donzere-Mondragon
What type of dam is the above answer?
Hydroelectric
What is the level of sea level rise since 1950 (Value and Units)?
2 mm/year
Has there been increased or decreased storm activity?
Increased
What is the range of the levels of costal retreat in m?
2-8
What is the cause of the above costal retreat?
Decreased sediment inputs | Sediment defecit
How many millions of euros has been spent on sea defences in the Rhone Delta area?
15
What exacerbated the costal sediment deficit?
River channel incision
During seasonal variations up to how much sediment discharge is there during high energy conditions in m*3?
6000
What type of process takes place in the Rhone Delta (lobate delta)?
Coagulation
What does the above answer lead to an increase in?
Deposited sediment | Sediment deposition
What transports the above answer?
Longshore currents
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