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Delta Flows: Data and Calibrations

Delta Flows: Data and Calibrations. Cathy Ruhl US Geological Survey California Water Science Center, Sacramento, CA. Many Thanks!. Funding Provided By: IEP CALFED DWR Contra Costa Water District City of Stockton Sacramento Regional Water Treatment Plant. DSM2 Recalibration.

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Delta Flows: Data and Calibrations

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  1. Delta Flows:Data and Calibrations Cathy Ruhl US Geological Survey California Water Science Center, Sacramento, CA

  2. Many Thanks! • Funding Provided By: • IEP • CALFED • DWR • Contra Costa Water • District • City of Stockton • Sacramento Regional • Water Treatment Plant

  3. DSM2 Recalibration • Metrics for identifying optimal periods • Hydrology • Wide Hydrologic Variability • Range of Export Rates • Variability in Delta-Cross Channel Gate Operations • Variability in South Delta Temporary Barrier Operations • Density of Data • Continuity of Data • Days to weeks • Confidence in Data

  4. Evolution of the Network • 1987: Old River and Middle River • 1992: Walnut Grove • 1996: Delta Outflow • 1999: South Delta • 2001: North Delta • 2005: South Delta • 2006: Central Delta

  5. Short Term Data Sets • Early South Delta / Dye Studies • Spring / Summer 1997, 1998, 1999 • Confluence Study • Fall 1998 • Grizzly Bay • Summer to Summer 1999 - 2000 • Delta Cross Channel Studies • Fall 2000, 2001, 2002, 2005 • Mildred Island • Summer / Fall 2001 • Franks Tract • Spring / Summer 2002

  6. Hydroacoustic Instrumentation • Ultrasonic Velocity Meters (UVM) • Acoustic Doppler Velocity Meters (ADVM) • Horizontal Profiling Capability • Sideward-looking (long-term deployment) • Upward-looking (short-term deployment)

  7. Hydroacoustic Instrumentation • Ultrasonic Velocity Meters (UVM) • Innovative application • Constrained deployment configurations

  8. Acoustic Doppler Velocity Meter Flexible Deployment Configuration Hydroacoustic Instrumentation

  9. Hydroacoustic Instrumentation • In-Situ Deployments • Flexible locations • Short-term only

  10. Data Availability

  11. Real-Time Data USGS – NWIS Web Unit Values – last 31 days only Daily Values – updated daily http://waterdata.usgs.gov/ca/nwis CDEC http://cdec.water.ca.gov Special Studies Records USGS – Jon Burau or Cathy Ruhl jrburau@usgs.gov caruhl@usgs.gov Historical Long-Term Monitoring Record USGS – NWIS Web Daily Values – updated daily http://waterdata.usgs.gov/ca/nwis USGS – Information Officer (Tom Haltom) (916) 278-3100, tchaltom@usgs.gov USGS – Unit Values Warehouse National effort – expected in December 2007 BDAT http://bdat.ca.gov/ Data Availability

  12. Many Thanks! • Funding Provided By: • IEP • CALFED • DWR • Contra Costa Water • District • City of Stockton • Sacramento Regional • Water Treatment Plant

  13. Evolution of the Network • 1987: Old River and Middle River • 1992: Walnut Grove • 1996: Delta Outflow • 1999: South Delta • 2001: North Delta • 2005: South Delta • 2006: Central Delta

  14. DSM2 Recalibration • Metrics for identifying optimal periods • Hydrology • Wide Hydrologic Variability • Range of Export Rates • Variability in Delta-Cross Channel Gate Operations • Variability in South Delta Temporary Barrier Operations • Density of Data • Continuity of Data • Days to weeks • Confidence in Data

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