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Andrea Ryan April 22,2010. Increased imperviousness on the Texas A&M West Campus is damaging the watershed.

Published bySylvia Hutchinson Modified over 8 years ago

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Presentation on theme: "Andrea Ryan April 22,2010. Increased imperviousness on the Texas A&M West Campus is damaging the watershed."— Presentation transcript:

1 Andrea Ryan April 22,2010

2 Increased imperviousness on the Texas A&M West Campus is damaging the watershed.

3 SCS Curve Number Method http://www.designshare.com/portfolio/project/1/604/Green%20Roof.jpg http://www.tececo.com/images/photographs/porous_pavement/PorousPave ment.JPG http://www.rosefellowship.org/images/projects/springterrace/gallery/05.jpg

4 Storm Water Management Model (SWMM) OUTPUT: Hydrologic Footprint Residence Peak Flow Volume

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9 This output is now the input to SWMM…

10  Katie – large storm events (>3.0in)  Andrea – small storm events (<3.0in)  Hypothesis: Low Impact Development will be more effective for small storms & a detention pond will be more effective for large storms.

11  24 Storms through HEC-HMS… with a hyphen in the name. BIG MISTAKE.  SWMM has an error  HFR? Problem from SWMM output or HFR code itself?

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14  Run storm events to test hypothesis  A small lit review of the impacts of LID and BMPs on small vs large storms  Figure out what’s wrong with SWMM & HFR…

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