Storm Hydrographs Flashcards

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1
Q

Peak rainfall

A

When rain is heaviest

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2
Q

Peak discharge

A

When river flow is greatest

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3
Q

Rising limb

A

As water joins the river discharge increase

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4
Q

Falling limb

A

River discharge eventually decreases

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5
Q

Lag time

A

The time lapse between peak rainfall and peace discharge

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6
Q

Storm hydrography affected by ( 7)

A
Geology 
Climate
Artificial drainage 
Soil type and depth 
Land use
Area/size basin
Relief
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7
Q

Hunan causes of flooding (5)

A
Deforestation 
Soil erosion 
Drainage networks 
Farming 
Building
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8
Q

Natural causes of flooding (6)

A
Antecedent rainfall 
Relief
Frozen/dry ground 
Sunshine= more evaporation +more rain
Geology 
Long periods of heavy rainfall and melting snow
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