Delta Flows Data and Calibrations Cathy Ruhl US
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
DSM 2 Recalibration n Metrics for identifying optimal periods n Hydrology n Wide Hydrologic Variability n Range of Export Rates n Variability in Delta-Cross Channel Gate Operations n Variability in South Delta Temporary Barrier Operations Density of Data n Continuity of Data n n Days to weeks n Confidence in Data
Evolution of the Network n n n n 1987: Old River and Middle River 1992: Walnut Grove 1996: Delta Outflow 1999: South Delta 2001: North Delta 2005: South Delta 2006: Central Delta
Short Term Data Sets n Early South Delta / Dye Studies n n Summer to Summer 1999 - 2000 Fall 2000, 2001, 2002, 2005 Mildred Island n n 1998 Delta Cross Channel Studies n n Fall Grizzly Bay n n 1997, 1998, 1999 Confluence Study n n Spring / Summer / Fall 2001 Franks Tract n Spring / Summer 2002
Hydroacoustic Instrumentation Ultrasonic Velocity Meters (UVM) n Acoustic Doppler Velocity Meters (ADVM) n Horizontal Profiling Capability n Sideward-looking (long-term deployment) n Upward-looking (short-term deployment) n
Hydroacoustic Instrumentation n Ultrasonic Velocity Meters (UVM) Innovative application n Constrained deployment configurations n
Hydroacoustic Instrumentation n Acoustic Doppler Velocity Meter n Flexible Deployment Configuration
Hydroacoustic Instrumentation n In-Situ Deployments Flexible locations n Short-term only n
Data Availability
Data Availability n Real-Time Data n USGS – NWIS Web n n Unit Values – last 31 days only Daily Values – updated daily http: //waterdata. usgs. gov/ca/nwis CDEC http: //cdec. water. ca. gov n n Historical Long-Term Monitoring Record n USGS – NWIS Web n http: //waterdata. usgs. gov/ca/nwis n USGS – Information Officer (Tom Haltom) n n Special Studies Records n USGS – Jon Burau or Cathy Ruhl n n jrburau@usgs. gov caruhl@usgs. gov Daily Values – updated daily n (916) 278 -3100, tchaltom@usgs. gov USGS – Unit Values Warehouse n National effort – expected in December 2007 BDAT http: //bdat. ca. gov/ n
Many Thanks! Funding Provided By: • IEP • CALFED • DWR • Contra Costa Water District • City of Stockton • Sacramento Regional Water Treatment Plant
Evolution of the Network n n n n 1987: Old River and Middle River 1992: Walnut Grove 1996: Delta Outflow 1999: South Delta 2001: North Delta 2005: South Delta 2006: Central Delta
DSM 2 Recalibration n Metrics for identifying optimal periods n Hydrology n Wide Hydrologic Variability n Range of Export Rates n Variability in Delta-Cross Channel Gate Operations n Variability in South Delta Temporary Barrier Operations Density of Data n Continuity of Data n n Days to weeks n Confidence in Data
- Slides: 14