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FLOODS, STREAMS AND MEANDERS. GAUGING STATION On all major streams Measures Stream Height Height vs. Discharge (volume) Flood Stage and height above Flood.

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Presentation on theme: "FLOODS, STREAMS AND MEANDERS. GAUGING STATION On all major streams Measures Stream Height Height vs. Discharge (volume) Flood Stage and height above Flood."— Presentation transcript:

1 FLOODS, STREAMS AND MEANDERS

2 GAUGING STATION On all major streams Measures Stream Height Height vs. Discharge (volume) Flood Stage and height above Flood Rank – ie. 100 year flood

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5 River Flood

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7 MEANDER BELTS WINDING SHAPE CONSTANTLY SHIFTING CHANNEL VELOCITY DIFFERENT IN DIFFERENT PARTS CHANNEL CUTOFF

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9 MEANDER

10 Parts of a Meander

11 2 SIDES Cut Bank (Erosion) Point Bar (Deposition)

12 CUT BANK

13 POINT BARS

14 SHIFTING CHANNELS CHUTE CUT-OFF DURING FLOOD NECK CUT-OFF GRADUAL

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16 OXBOW LAKE AFTER CUT-OFF SEPARATED FROM MAIN RIVER NO FLOW SEDIMENTATION

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19 Water Color Muddy water is flowing Still water is clear

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21 DAMS ON RIVERS

22 DAM BURST

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24 DESTRUCTION ON RIVER

25 EROSION

26 HOUSE DAMAGE


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