DSM2 Performance MeasuresDSM2 Performance Measures

Tara Smith

CWEMF Annual Meeting

February 26, 2007

Delta Modeling SectionBay Delta Office

Presentation OverviewPresentation Overview

• DSM2 Calibration Evaluation Process

• Background on DSM2 Applications

• Examples of Performance Measures Presented at Delta Modeling Workshop

• Solicit Comments and Additional Ideas for Performance Measures

• Start to Prioritized Performance Measures

DSM2 Calibration Evaluation DSM2 Calibration Evaluation ProcessProcess

• First Step – Evaluate the performance of the current calibration of DSM2

– Determine current and potential applications of DSM2

– From those applications, determine and prioritize methods/measures to evaluate performance

– Evaluate performance

Applications of DSM2 Applications of DSM2 • Application types

– Historical– Forecasting (real-time and longer term)– Planning

• Simulation types– Hydrodynamics (flow and water levels)– Conservative constituents (salinity)– Non-conservative constituents (Temperature, DO,

TOC, etc)– Particle tracking

Current and Potential Applications of Current and Potential Applications of DSM2DSM2

• Real-time applications– Operations– Emergency Response

• Planning applications– Sea level rise– Island flooding– Frank’s Tract / 3-Mile Slough– Storage and conveyance alternatives– South Delta and other barriers/gates– Changes in operations

Inputs for DSM2Inputs for DSM2

The February Delta Modeling Workshop touched on several issues related to the availability of DSM2 input data, how it is used by the model and how it affects DSM2’s results. – Geometry – Flow – Stage– River and Ocean Boundary Water Quality– Agricultural Consumptive Use and Quality

http://www.cwemf.org/Calendar/index.htm

Performance Measures Performance Measures (From Delta Modeling Workshop)(From Delta Modeling Workshop)

• Amplitude and Phase Differences (Nader)

• Tidally Averaged Data (Nader)• Harmonic Analysis (L. Smith)• Weighting Schemes Between

Field Data and Model Output (Guerin)

• Other Statistical Measures

Performance Measures Performance Measures (From Delta Modeling Workshop)(From Delta Modeling Workshop)

• Match Tidal Prism (Enright)• Surface and Bottom Salinity• Impact of Location of Boundary Conditions on

results (Enright, Shum, Nader)• Open Water Areas – Franks Tract (Shum)• Gate Operation (Shum)• Wind Effects (P. Smith)• Ocean Boundary Modeling (P. Smith)

Suggestions?Suggestions?

DSM2 Calibration Evaluation DSM2 Calibration Evaluation ContactsContacts

Jamie Anderson jamiea@water.ca.gov(916) 654-5455(Maternity Leave Mid March through June)

Tara Smithtara@water.ca.gov(916) 653-9885