chapter 10 and 18
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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what is recurrence interval? | average time between floods of a given discharge
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flash flood? | local sudden short floods
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how gradient affects velocity | high gradient high velocity erosion and transport, drop in gradient drop in velocity, deposition
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different ways in which a stream transports sediment | bed load, suspended load, and dissolved load
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what is bed load | sand and gravel spend most of their time on the stream bed
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what is suspended load | silt and clay spend most of their time suspended above the bed
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what is dissolved load | soludable products of chemical weathering usually invisible
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what is downcutting | deepening of the valley by erosion of a stream bed
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what is base level? | sea level rise or drop, tectonic upift. Base level drops renewed downcutting. base level rises lateral erosion
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what is bars? | sand and gravel on the beds or banks of a stream. larger streams sand bar. Smaller streams gravel bars
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braided streams? | network of interconecting channels around numerous bars common in arid regions
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meandering streams? | is a bend. common in humid regions
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cut bank? | outer part of a stream bend, erosion on outside
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point bar? | inside part of the stream bend, deposition on inside
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oxbow lake? | cut off of the river
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delta? | when stream runs into a standing body of water, tends to form thick sediments
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alluvial fan? | they form on land, really common on desert regions
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what are the stream deposits? | bars, braided stream, meandering, cut bank, point bar, oxbow lake, delta, alluvial fan,
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drainage patterns? | dendritic, radial, and trellis
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dendritic? | tree shaped, horizontal sedimentary
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radial? | splitting apart, volcanic landforms
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trellice? | bunch streams moving downward with small branches
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what is drainage basin? | its an area involves stream and land. the entire area drained by a stream and its tributaries
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floodplain? | part of the riversystem. it is an area capable of being flooded
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saltation? | series of hops and bounces
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drainage divide? | an elevated boundary that separates neighboring drainage basins.
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