Nile Delta Flashcards
case study
1
Q
what type of environment
A
low energy
2
Q
fluvial deposition exceeded rates of marine erosion for over
A
3000 years
3
Q
Nile length
A
6650km
4
Q
catchment area size
A
3 million km2
5
Q
mean annual rainfall
A
600mm
6
Q
average discharge
A
less than 3000m3/s
7
Q
sediment load
A
30% clay 40% silt 30% fine sand
8
Q
annual average sediment yield
A
4.26t/ha/year
9
Q
annual average sediment yield for whole blue Nile basin Ethiopia
A
91.3 million tonnes
10
Q
delta begins to split in to distributaries at cario more than
A
160km inland
11
Q
when was the Aswan high dam built
A
1964
12
Q
wind direction
A
northwesterly
13
Q
estimated surface current velocity (summer)
A
9.26 to 13.5 cm/s in summer
14
Q
estimated surface current velocity (autumn)
A
4.46 cm/s
15
Q
estimated surface current velocity (winter)
A
23.14 cm/s
