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The UK's Number One
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Virtual Fieldwork
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Site Number: | One | ||||||||||
Stream width: | 8.4 metres | ||||||||||
Stream depth (recorded every metre): | |||||||||||
0.18m | 0.23m | 0.21m | 0.20m | 0.23m | 0.15m | 0.16m | 0.17m | blank | blank | blank | blank |
Velocity (recorded a quarter, half-way and three-quarters of the way across the stream): | |||||||||||
0.98m/sec
|
0.83m/sec
|
0.67m/sec
|
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Bedload size and angularity (sample of six pebbles): | |||||||||||
40mm
|
30mm
|
20mm
|
25mm
|
15mm
|
32mm
|
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3
|
5
|
3
|
3
|
4
|
4
|
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Comments: Natural banks with vegetation, no obstructions in the stream, stream bed very stony all the way across with little evidence of mud or sand. |
Site Number: | Two | ||||||||||
Stream width: | 13.6 metres | ||||||||||
Stream depth (recorded every metre): | |||||||||||
0.31m | 0.29m | 0.28m | 0.23m | 0.18m | 0.20m | 0.18m | 0.17m | 0.16m | 0.22m | 0.23m | 0.19m |
Velocity (recorded a quarter, half-way and three-quarters of the way across the stream): | |||||||||||
0.44m/sec
|
0.42m/sec
|
0.27m/sec
|
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Bedload size and angularity (sample of six pebbles): | |||||||||||
90mm
|
45mm
|
40mm
|
42mm
|
45mm
|
36mm
|
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6
|
3
|
4
|
4
|
4
|
4
|
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Comments:Artificial banks with some vegetation, no obstructions in the stream, stream bed full of large stones and some pieces of brick. |
Site Number: | Three | ||||||||||
Stream width: | 10.2 metres | ||||||||||
Stream depth (recorded every metre): | |||||||||||
0.25m | 0.22m | 0.17m | 0.20m | 0.17m | 0.13m | 0.09m | 0.05m | 0.10m | 0.32m | blank | blank |
Velocity (recorded a quarter, half-way and three-quarters of the way across the stream): | |||||||||||
0.70m/sec
|
0.54m/sec
|
0.60m/sec
|
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Bedload size and angularity (sample of six pebbles): | |||||||||||
20mm
|
35mm
|
40mm
|
45mm
|
30mm
|
26mm
|
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5
|
3
|
4
|
2
|
5
|
2
|
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Comments:Some branches fallen into the stream, natural banks with vegetation, just after a meander, bedload of different sizes. |