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Model Files for "Effectiveness of Stormwater Control Measures in Protecting Stream Channel Stability"
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Storage: The size of this resource is 335.1 MB
Created: Mar 09, 2024 at 6:50 p.m.
Last updated: Mar 11, 2024 at 6:13 p.m.
DOI: 10.4211/hs.66c7547f746142cba6e769d7b3efaddf
Citation: See how to cite this resource
Content types: Single File Content 
Sharing Status: Published
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Abstract

This resource archives Model files supporting the paper "Effectiveness of Stormwater Control Measures in Protecting Stream Channel Stability".
The abstract for this paper follows: "While research on the hydrologic impact of different types of stormwater control measures (SCMs) is extensive, little research exists linking urbanization, widespread implementation of SCMs, and channel stability in headwater streams. This study evaluated whether the Unified Stormwater Sizing Criteria (USSC) regulations in the state of Maryland, USA, which require the use of both end-of-pipe and distributed, small-scale SCMs, protect channel stability. To achieve this goal, a coupled hierarchical modeling approach utilizing the Storm Water Management Model (SWMM) and the Hydrologic Engineering Center River Analysis System 6.3 (HEC-RAS) was developed to predict changes in streamflow and sediment transport dynamics in a first-order gravel-bed, riffle-pool channel. Storm event discretization revealed that 88% of observed storm events during the 16 years (2004-2020) had durations less than 18 hours and that the greatest peak flows resulted from storm events with durations less than 24 hours. HEC-RAS simulation results also showed that both channel degradation and aggradation, as high as 1.2 m, will likely occur regardless of the combination of SCMs employed in the catchment. Overall, this study provides valuable insights into the complex interactions between SWM practices, flow regimes, and sediment transport dynamics in heavily urbanized watersheds. It is recommended that SCMs be designed using a continuous simulation model with at least 10 years of continuous rainfall data. Furthermore, to protect channel stability, the SCM design goal should focus on maintaining pre-development sediment transport regimes across a range of flows."

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Longitude
-77.7505°
Latitude
39.2227°

Temporal

Start Date:
End Date:

Content

Readme.txt 


    


                    
                
            

        
         

        
        

        

        

        
        


        
        








    
    
    
    


        
        


    
    




        
        
    

        
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Funding Agencies

                
This resource was created using funding from the following sources:

                

                    
                    

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                        Award Title
                        Award Number
                    

                    
                    
                    
                        

                            
                                
                                
                                    Chesapeake Bay Trust
                                
                                
                            
                            
                            
                        

                    
                    
                

            

        
    




    
    
    



    
    






    


        
        



    
    

      How to Cite
      
      
    

    

        

            

                

                    
Towsif Khan, S. (2024). Model Files for "Effectiveness of Stormwater Control Measures in Protecting Stream Channel Stability", HydroShare, https://doi.org/10.4211/hs.66c7547f746142cba6e769d7b3efaddf

                    
                

                
            


            
            
            


            
            
                
                    

                        
                            
                                
This resource is shared under the Creative Commons Attribution CC BY.

                            
                        

                        
                            http://creativecommons.org/licenses/by/4.0/
                        
                    

                        
                            CC-BY
                        
                
            
        


        
    





        
        



    
    



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