1. HSPF Interface Data Model
Nate Johnson
CE394K.3
GIS in Water Resources
Final Presentation

2. ArcHydro – HSPF Interface Data Model
Context
Interface Data Models link external models through ArcHydro
HSPF
Hydrologic Simulation Program in Fortran
Watershed model for rainfall response

3. Scope Focus on Timeseries HSPF structure
ArcHydro – HSPF Interface Data Model
Scope
HSPF structure
Some models have complete interface developed HSPF is very complex… much too complex for a semester project
Focus on Timeseries

4. TimeSeries Interface MY PROJECT
ArcHydro – HSPF Interface Data Model
TimeSeries Interface
OBJECTIVE: Investigate the potential of ArcHydro to store time series information from HSPF
HSPF TimeSeries
MY PROJECT
ArcHydro TimeSeries

5. Output TimeSeries Flow, Groundwater Input TimeSeries Precipitation
ArcHydro – HSPF Interface Data Model
HSPF Brief
3 Main parts of HSPF model
TimeSeries Exchange
Output TimeSeries Flow, Groundwater
Input TimeSeries Precipitation
PERLND
IMPLND
RCHRES
To ArcHydro…

6. ArcHydro – HSPF Interface Data Model
Conceptual model in UML (Unified Modeling Language) for interface
Watersheds
Time Series
Rivers
TSType Table
HydroJunction

7. ArcHydro – HSPF Interface Data Model
Example of Structure
TimeSeries FeatureID contains Watershed ObjectID
TSTypeID is a Coded Value Domainon defining the Type of Data

8. ArcHydro – HSPF Interface Data Model
To Do List… (Future Work)
Finalize structure of interface
Talk to those familiar with ArcHydro and HSPF to get input
Get data for a working HSPF model and try it out