Catchments - Channels
10 important questions on Catchments - Channels
What is the formula for drainage density?
Dd = drainage density
Ltot = total length of the channels
A = certain area (m2)
What does an high drainage density indicate?
What are different channel network patterns?
-radial
-trellis
-parallel
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What is a dendritic pattern?
What is a radial pattern?
Why do headwaters often run dry?
What is a trellis pattern?
If the Strahler order numbering is 5, the distance between every junction is 1 km, and water flows 1 km/h, how long does it take for water to get from the source to the outlet?
What is a parallel pattern?
What are the rules of Strahler order numbering?
- when links of the first order merge, add 1
- when links with different orders merge, it will continue as the highest
- the highest order is always found at the outlet and represents the Strrahles order of the catchment
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