1. Evaluation of BASINS/HSPF Runoff Predictions from Craypan Agricultural Watershed
Term Project Presentation
CEE6440
GIS in Water Resources
Seungbin Hong
12/03/2002

2. BASINS
BASINS is a multipurpose environmental analysis system for use by regional, state, and local agencies in performing watershed and water-quality based studies.
Integrates
GIS ARC View
Extensive Database for the entire US
Water Quality Models Tools

3. Components of BASINS
Nationally derived databases with Data Extraction tools and Project Builders
Assessment Tools (TARGET, ASSESS, and Data Mining) that address large and small-scale characterization needs
BASINS Utilities including watershed Delineation, import, Landuse reclassification, DEM reclassification
Watershed Characterization Reports
Non-Point Source Model (NPSM) and Water Quality Model (QUAL2E)
Target – used to perform broad-based water quality and/or point source loading data evaluations on the entire extracted project area.
Assess tool - allows users to perform water quality and point source discharge assessment on an individual watershed or a group of watersheds.
Data Mining - builds dynamic links between the map interface and related data tables to allow users to retrieve and visualize (1) water quality stations and parameter data, (2) permitted facility locations and pollutant loading discharge data, and (3) bacteria stations and corresponding parameter values.
Land Use Reclassification – used to group detailed land use classes, based on their code and descriptions, into broad categories. This tool can modify the existing land use theme(s) or create new themes with different classifications to reflect alternative scenarios.
BASINS 2.0 provides users the capability to generate six different types of watershed characterization reports;
1) Point Source Inventory Report 2) Water Quality Summary Report 3) Toxic Air Emission Report
4) Landuse Distribution Report 5) State Soil Characteristics Report 6) Watershed Topographic Report

4. Non Point Source Model NPSM (HSPF v11)
HSPF is a very complex model. However, it is structurally modular permitting the user to isolate and focus on elements of interest while bypassing other modules and their activities.
The model considers a basin or watershed comprising of 2 segments:
Land Segment – pervious and Impervious
Water body (Streams, lakes, reservoirs)
HSPF Modules
PERLAND – the module that simulates pervious land segment
IMPLAND – the module that simulates impervious land
segment
RCHRES – the module that routes runoff through reservoir while simulating instream processes
NPSM – Non Point Source Model
HSPF – Hydrologic Simulation Program - FORTRAN

5. Hydrology in NPSM Hydrologic Components: Rainfall or Snow Interception
Depression Storage
Evapotranspiration
Infiltration
Surface Storage
Runoff
Interflow
Groundwater Flow

6. Objectives
Run BASIN/HSPF modeling program and evaluate runoff predictions using BASINS default parameters
Evaluate the sensitivity of key hydrologic parameters
Calibrate the model
Evaluate the calibrated model

7. Site Description- Craypan Watershed in Missouri
Located within Monroe and Shelby County in North Central Missouri
Encompasses 111 sq.mi. (71,204 acres)
A tributary of the North Fork of the Salt River, which empties into Mark Twain Lake
. The watershed encompasses 111 sq.mi. (71,204 acres) and is a tributary of the North Fork of the Salt River, which empties into Mark Twain Lake just upstream of the intake for the Clarence Cannon Wholesale Water Commission (CCWWC) which provides over 2.3 million gallons per day of drinking water to a 12 county area.

8. Soil, Landuse, and Topograph

9. Delineation of the Sub-watershed Crooked Creek
based on the RF1 and RF3 reach networks

10. Parameters and Default value for simulation
Data Group
Symbol
Definition
Default
Value
Minimum
Maximum
PWAT-
PARM2
LZSN
Lower zone nominal storage
14.10
0.01
100.0
INFILT
Index to the infiltration capacity of the soil
0.16
0.0001
LSUR
Length of the assumed overland flow plane
300
1.0
None
SLSUR
Slope
0.035
10.0
AGWRC
Basic groundwater recession rate if KVARY is 0 and there is no inflow to groundwater
0.98
0.001
0.999
PARM3
DEEPFR
Fraction of groundwater inflow which will enter deep (inactive) groundwater and be lost
0.10
0.0
BASETP
Fraction of potential E-T which can be satisfied from baseflow (groundwater outflow)
0.02
PARM4
UZSN
Upper zone nominal storage
1.1280
NSUR
Manning’s n for the assumed overland flow plane
INTFW
Interflow inflow parameter
0.75
IRC
Interflow recession parameter
0.5
1.0E-30
LZETP
Lower zone E-T parameter. It is an index to the density of deep-rooted vegetation

11. Steps for performing within the NPSM interface

12. Steps for performing within the NPSM interface

13. Runoff by Default values on the simulation
The default parameters are largely divided into three categories: Water Balance, Groundwater, and Surface Runoff.
Categories
Parameters
Water Balance
LZSN, LZETP, INFILT, DEEPFR
Groundwater
INFILT, AGWRC, DEEPFR, BASETP
Surface Runoff
UZSN, INTFLW, IRC, LUSR, NSUR, SLSUR
(Unit; mm)
PERO*
SURO*
Base Flow*
Measured Value
287.59
244.45
43.14
Predicted Value
298.64
32.14
266.49
Difference %
-4%
87%
-518%
* PERO ; Total outflow
SURO ; Surface outflow
Base flow ; IFWO (Interflow) + AGWO (Groundwater flow)

14. Calibration, Sensitivity, & The Best Result on Simulation by the revised
Parameter
Default
Revised Default
LZSN
INFILT
LSUR
SLSUR
AGWRC
DEEPFR
BASETP
UZSN
NSUR
INTFW
IRC
LZETP
14.10
0.16
300
0.035
0.98
0.10
0.02
1.1280
0.75
0.5
0.1
18.5
0.009
0.96
0.08
1.25
0.01
0.65
PERO
SURO
Base Flow
298.64
32.143
266.50
287.20
243.58
43.62
Sensitive Parameters
LZSN, DEEPFR, BASETP,
USZN
Insensitive Parameters
LZETP, IRC
PERO
SURO
Base Flow
Measured Value
287.59
244.45
43.14
Revised Value
287.20
243.58
43.62
Difference %
0.14%
0.36%
-1.11%

15. Future Work
According to “Crooked Creek Watershed Project”, an atrazine, sediment, and nutrient loading are concerning in this watershed. In the future, when simulating this model, we should consider important environmental parameters.