Comparison of Surface Losses in HMS and GSSHA

CEEn-531 Dr. Nelson


Create a report that explains your comparative analyses and summarizes your observations. Don't be too short or too long in writing your report.  Use the  tables (or something similar) shown below to report the parameter values that you used so that we can better understand your results.

Compare the results of HMS

Take into consideration the things listed in To Turn in List.

Compare the results from GSSHA

Take into consideration the things listed in To Turn in List.

1. Parameters Used in HMS

Curve Number Sensitivity

Condition Curve Number Initial_Abstraction Peak Flow
CN Normal      
CN Wet      
CN Dry      

Initial Abstraction Sensitivity

Condition Curve Number Initial_Abstraction Peak Flow
Ia = 0      
Ia = 0.1S      
Ia = 0.2S      

Soil Type Sensitivity

Condition Curve Number Initial_Abstraction Peak Flow
SSURGO      
STATSGO      

Initial and Constant Rate Method

Condition

Initial Loss

Constant Rate

Peak Flow

       

Green and Ampt

Condition Initial Loss Moisture_Deficit Suction Conductivity Peak Flow
           

2. Parameters Used in GSSHA

No infiltration

Condition Manning's n
   

Green and Ampt with uniform inifiltration

Condition Hydraulic Conductivity Capillary Head Porosity Pore distribution index Residual saturation Field  capacity Peak Flow
GAR              

Spatially defined Green and Ampt parameters

Condition Hydraulic Conductivity Capillary Head Porosity Pore distribution index Residual saturation Field  capacity Peak Flow
ID # 1              
ID #2              
and so on ..              

Evaluation of the effect of impervious areas

Condition Hydraulic Conductivity Capillary Head Porosity Pore distribution index Residual saturation Field  capacity Manning's n Peak Flow
ID # 1                
ID #2                
and so on ..