Place Maryland Department of the Environment
Model
Name
Watershed
(HSPF)
Estuarine
Model (WASP)
Cost-Effectiveness
(CPLEX)
Hydrodynamic
Model Type "D,Sp,Sim" "Sim" "MO" "Sim"
Spatial Extent Pax Watershed Pax River Pax Watershed Pax River
Area (km2) w/water 2400     2400
Spatial
Resolution
# cells/ segmts 39 76 39 ~800
cell size (km2) var var var 1.28x10-3
volume (km3) var var var var
cells in Pax 39 76 39 ~800
Temporal
Resolution
Extent 5 yrs 4yrs 1 yr (any) 3 yrs
Time step 1 hr 0.75 hr 1 yr avg.  
#Vars/cell   16 State Vars 20-25 Decision vars  
Calibration #Data sites 11 ~10 11 ~10
Model
Components

(•=
calculated
in model)
Surface Water    
Ground Water   (HSPF)  
Stream Flow      
Sed.(in runoff)      
Nutrients  
Trace Elements        
Wat.Qual.,e.g.BOD      
SAV        
Benthos        
Plankton      
Fish        
Terrest.Producers        
Other
Variables
    BMPs  
UMD COASTES MDE MOP SERC CBP/W CBP/E CBP/A