Methods in Stream Ecology

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Methods in Stream Ecology

• Chapter 3
• Discharge Measurements and Stream Flow Analysis
• Presented by
• Eric Rahm

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Archived View of Green River Valley, Mammoth Cave
National ParkFebruary 11 , 2007 1200 PM CST
http//www2.nature.nps.gov/air/WebCams/parks/macac
am/maca_arc.cfm
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http//www.lrl.usace.army.mil/wc/reports/grbdlb.tx
t
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(No Transcript)
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Archived View of Green River Valley, Mammoth Cave
National ParkFebruary 3, 2007 1200 PM CST
http//www2.nature.nps.gov/air/WebCams/parks/macac
am/maca_arc.cfm
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(No Transcript)
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(No Transcript)
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Archived View of Green River Valley, Mammoth Cave
National ParkJanuary 23, 2007 1200 PM CST
http//www2.nature.nps.gov/air/WebCams/parks/macac
am/maca_arc.cfm
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Site Selection

Commonwealth of Pennsylvania
Department of Environmental Protection
www.depweb.state.pa.us/.../view.asp?a3q504045
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Weirs
http//www.sheenview.com/photogaller/ Sheen20Wier
20No20Flood.jpg
http//www.bbc.co.uk/devon/content/images/ 2005/06
/21/bass_yealm_wier_450x338.jpg
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Flood Frequency Curves
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• Question 1
• Volumetric Analysis
• Qv/t
• Q discharge
• v volume
• t time
• Velocity Area method
• Float Protocol
• VsL/t
• Vs surface velocity
• Roughness correction (k)
• VkVs
• Discharge
• QVE(Ai)
• Aicross sectional area of each cell
• Current Meter Protocol for Estimating Velocity

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• Question 3
• Question 5
• http//water.oregonstate.edu/streamflow/analysis/f
  low/index.htm
• Question 7
• Question 9 ?
• http//www.ncwater.org/About_DWR/Water_Projects_Se
  ction/Instream_Flow/techmanual.htm