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The Sacramento regional model. Project Review and Final Report Norm Jones Michelle Smilowitz. Company Background. Software development Training Consulting. Arc Hydro. www.aquaveo.com. Groundwater. Modeling Protocol. Derrick. Norm. Michelle. Norm. - PowerPoint PPT Presentation
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THE SACRAMENTO REGIONAL MODEL
Project Review and Final ReportNorm Jones
Michelle Smilowitz
Company Background
Software development
Training Consulting
www.aquaveo.com
Arc HydroGroundwater
Derrick
Modeling Protocol
Adapted from Anderson & Woessner, 1992
Norm
Michelle
Norm
Comparison with
Field Data
Field Data
Field Data
Field Data
*includes sensitivity analysis
Define Purpose
Conceptual Model
Code Selection
Model Design
Calibration*
Prediction*
Postaudit
Are the capabilities of the code consistent with the modeling objectives?
Is the code verified and well-established? Can the code simulate each of the critical
processes in the conceptual model at a sufficient level of accuracy?
Is the code easy to use and maintain?
Code Selection Criteria
Parsimony
“Everything should be made as simple as possible. But not simpler.” – Albert Einstein
Groundwater models should be complex enough to be useful, yet simple enough to be cost-effective and manageable.
MODFLOW
Developed and supported by the USGS
Public Domain Widely-used Rich suite of add-
ons, utilities, & companion programs
Cost-effective
1
1
2
4
119
57
8
3
10
6
1. Confined/unconfined aquifers2. Interbeds3. Faults and barriers4. Confining units5. Rivers6. Drains and springs
7. Streams8. Reservoirs9. Recharge10. Evapotranspiration11. Wells
Particle Tracking with MODPATH
Contaminant Transport Modeling
MT3DMS, RT3D, SEAM3D
Surface Water/Ground WaterInteraction
Losing River
Gaining River
Disconnected River
Flow budget output Detailed summary of
SW/GW exchange quantities
River package (RIV) Stage specified
Streamflow-routing package (SFR) Flow specified Routing Stage calculated
Surface Water/Ground Water
Low development cost 12 months $267,000
Cost savings due to Mature suite of pre- and post-processing
tools Leveraging GIS linkage and tools Model portability – widespread expertise
Development and Maintenance Costs
12
Groundwater Modeling System (GMS)
Conceptual Model - Site Map
Clearwater Well
StillwaterReservoir
WhitewaterRiver
BigwaterLake
Feature Objects
Well PointGeneral Head
PolygonRiverArcs
Specified Head Arcs
Variable Head
Polygon
Grid-Based Numerical Model
Arc Hydro Groundwater
Data model and tools for managing groundwater data in ArcGIS