floods, streams and meanders. gauging station on all major streams measures stream height height vs....
Post on 20-Dec-2015
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![Page 1: FLOODS, STREAMS AND MEANDERS. GAUGING STATION On all major streams Measures Stream Height Height vs. Discharge (volume) Flood Stage and height above Flood](https://reader033.vdocument.in/reader033/viewer/2022042717/56649d4c5503460f94a2a24c/html5/thumbnails/1.jpg)
FLOODS, STREAMS FLOODS, STREAMS AND MEANDERSAND MEANDERS
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GAUGING STATIONGAUGING 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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River FloodRiver Flood
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MEANDER BELTSMEANDER BELTS
• WINDING SHAPE
• CONSTANTLY SHIFTING CHANNEL
• VELOCITY DIFFERENT IN DIFFERENT PARTS
• CHANNEL CUTOFF
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MEANDERMEANDER
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Parts of a MeanderParts of a Meander
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2 SIDES2 SIDES
• Cut Bank (Erosion)
• Point Bar (Deposition)
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CUT BANKCUT BANK
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POINT BARSPOINT BARS
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SHIFTING CHANNELSSHIFTING CHANNELS
• CHUTE CUT-OFF DURING FLOOD
• NECK CUT-OFF GRADUAL
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OXBOW LAKEOXBOW LAKE
• AFTER CUT-OFF
• SEPARATED FROM MAIN RIVER
• NO FLOW
• SEDIMENTATION
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Water ColorWater Color
• Muddy water is flowing
• Still water is clear
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DAMS ON RIVERSDAMS ON RIVERS
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DAM BURSTDAM BURST
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DESTRUCTION ON RIVERDESTRUCTION ON RIVER
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EROSIONEROSION
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HOUSE DAMAGEHOUSE DAMAGE