CALFED Science Program Workshop - A Two-Part Discussion of Delta Conveyance Modeling to Support the Delta Vision Blue Ribbon Task Force

An important goal of the CALFED Science Program is to provide authoritative and unbiased descriptions of scientific knowledge. To fulfill this goal, the Science Program holds workshops designed to provide a forum for discussions and the exchange of information among scientists, stakeholders, agency staff, and the public about topics important to the region.

The CALFED Science Program convened two workshops on Delta conveyance modeling to support the Delta Vision Blue Ribbon Task Force, which developed a strategic plan to implement its vision for the California Delta. The purposes of these public workshops were to discuss various Delta-conveyance-modeling tools, assumptions, and other variables, and provide facilitated discussions with organizations conducting Delta-conveyance modeling.

Workshop 2: Linking Physical and Biological Models for Ecosystem Prediction, Planning, and Performance

Lead Scientist workshop summary memo to Delta Vision Task Force

May 20, 2008
9:00 a.m. - 5:00 p.m.
Bay-Delta Room, 650 Capitol Mall, 5th Floor
Sacramento, CA 95814

This workshop will be webcast:

Download Meeting Notice

Advisor Panel Final Report

Workshop Purpose

This workshop explored approaches to linking hydrodynamic and biological (ecological) models and assess the potential outcomes in an effort to advise the Task Force regarding what approaches might best be used to achieve planning objectives now and in the future.

Ron Ott, Science Advisor for the CALFED Science Program facilitated the workshop.

Workshop Product

The science advisors provided a technical report to the CALFED Lead Scientist Michael Healey. The Lead Scientist summarized workshop proceedings for the Delta Vision Blue Ribbon Task Force at its May meeting.


Order of agenda and listed times are approximate and subject to change.

Workshop 1: Modeling Approaches

April 3, 2008
9:00 a.m. to 5:00 p.m.

An Archived recording of the workshop is available at:

Lead Scientist workshop summary memo to Delta Vision Task Force

Workshop Report by Science Advisors to the CALFED Lead Scientist.

This first workshop provided a forum for information exchange and discussion on how modeling efforts are proceeding in addressing Task Force needs for information on dual conveyance. A second, companion workshop is planned for May 8, 2008, to discuss specific results from particular models presented and to critically examine interpretation of outputs.

Dr. Michael Healey, a Delta Vision science advisor, facilitated the presentation and discussion of the science experts about the various modeling approaches. The science experts submitted a brief summary report to the CALFED Science Program following the workshop that will be made available on this site.

Download meeting notice.


    9:00 a.m.
  • Presentation of Modeling Fundamentals for Policymakers
    • K. T. Shum, East Bay Municipal Utility District
    • Pete Smith, U.S. Geological Survey (Emeritus)
    • Peter Goodwin, University of Idaho
    • Chris Enright, CA Department of Water Resources
  • Presenters discussed:
    • Descriptions
    • Applications
    • Limitations
    • Advantages
  • 12:00 p.m. Lunch
  • 1:00 p.m. Presentation of Conveyance Applications and Implications of Model Use
    • Bay Delta Conservation Plan and Department of Water Resources-Francis Chung
    • Public Policy Institute of California-William Fleenor
    • Metropolitan Water District of Southern California-Paul Hutton
    • United States Bureau of Reclamation-Lee Mao
  • Presenters discussed:
    • Specific model purpose and conceptual approach
    • Inputs and assumptions
    • How are Delta Vision Task Force criteria being addressed?
  • Facilitated discussion - Michael Healey
  • Public Comment
  • 5:00 p.m. Adjourn

Workshop Materials: