Geoscience Reference
In-Depth Information
(a)
Key
Channel bank
Topsoil
Uncultivated
Topsoil
Cultivated
STW solids
Road-deposited
sediment
Bell Busk
Otterburn
Kildwick
Beal
Keighly
Leeds
Halifax
Dewsbury
Huddersfield
N
Methley
10 km
Case Fig. 6.2
(a) Location of the Aire-Calder catchment, eastern UK. Also shown are the relative source contributions to the
suspended sediment in the catchment in both upstream and downstream sections. Note the significant component of urban-
derived sediment (road-deposited sediment and sewage treatment works (STW) solids) in the sections downstream of the major
urban conurbations. (Data from Carter et al. 2003.)
(b)
300
100
4
80
5
3
200
60
1
40
2
100
20
0
10
20
30
40
1
2
3
4
5
Time since start of discharge rise (hours)
Key
Channel bank
Topsoil
Uncultivated
Topsoil
Cultivated
STW solids
Road-deposited
sediment
Case Fig. 6.2
(b) Variation in sediment sources to suspended sediment in the urbanized portion of the Aire-Calder over a
single high-discharge event. (From Carter et al. 2003.)
