Extended San Joaquin River Model

1
Extended San Joaquin River Model

• Kate Huckelbridge
• Nigel Quinn
• 2/21/06

2
Objectives

• Extend existing SJR model network to include
• Stanislaus River (SJR to Goodwin dam)
• Tuolumne River (SJR to LaGrange dam)
• Merced River (SJR to Crocker-Huffman dam)
• Salt Slough (SJR to gauging station at Hwy 165)
• Mud Slough (SJR to gauging station near Gustine)

3
Objectives (cont.)

• Incorporate flow and salinity information into
  extended SJR model for
• East side irrigation districts discharging to
  east side tributaries
• West side creeks and drains (based on data
  collection efforts)

4
East Side Tributaries
5
General Process

• Original Plan
• Convert cross-sectional data into DSM2 format
• Update DSM2 input files to incorporate geometry,
  flow and EC data for east side tributaries
• Run and calibrate model
• Problems with DSM2 approach
• Difficulty in making code changes
• Lack of model documentation
• Difficulty with consistent model execution
• New Plan
• Convert cross-sectional data into WARMF format
• Original format different for different data
  sources (i.e., USACE in station/elevation format)
• WARMF format stage/width
• Turn files over to Systech for incorporation into
  SJR model

6
Stanislaus River

• Geometry
• USACE Comprehensive Study (RM 1-14)
• 36 cross sections converted to 6 representative
  cross-sections
• Channel segment length averages 1.9 river miles
• Still Need Data for RM 14 RM 56 (Goodwin Dam)
• Flow/EC
• Gauge data already incorporated
• Discharge data from MID
• Daily and monthly average data for 2000 2005
  for Lateral 6, Main Canal, Main Drain (via Miller
  Lake), Main Canal at Spenker

7
Tuolumne River

• Geometry
• USACE comprehensive Study (RM 1 RM 24)
• 92 cross sections converted to 17 representative
  cross-sections
• Channel segment length averages 1.3 river miles
• RMA/TriDam HEC-RAS study (still awaiting data)
• Still need data for RM 24 RM 52 (LaGrange Dam)
• Flow/EC
• Gauge data already incorporated
• Discharge data from MID, TID
• MID Daily and monthly average data for 2000
  2005 for Lateral 2 _at_ Santa Fe, Lateral 2, Lateral
  5, Main Waterford Canal
• TID Daily data for 2000 2004 for Faith Home
  Spill

8
Merced River

• Geometry
• USACE comprehensive Study (RM 1 RM 17)
• 56 cross sections converted to 11 representative
  cross-sections
• Channel segment length averages 1.8 river miles
• RMA/TriDam HEC-RAS study (RM 1- RM 52
  (Crocker-Huffman Dam))
• Awaiting thalweg data for conversion to WARMF
  format
• RM 21 RM 36.4 based on data from 1968
• Still need data for RM 21 RM 36.4
• Flow/EC
• Gauge data already incorporated
• Discharges from TID, Merced Irrigation District
• TID Daily data for 2000 2004 for Highline and
  Lower Stevenson spills
• Merced Merced flows below Crocker-Huffman Dam
  average flows during irrigation season for spills
  near Cressy

9
San Joaquin River

• TID daily data from 2000 to 2004 (replaces
  monthly data currently in DSM2)
• MID - daily data from 2000 to 2004 (replaces
  monthly data currently in DSM2)

10
Mud Slough

• Geometry
• Summers Engineering surveys (RM 1 RM 5.5)
• 25 cross-sections converted to 4 representative
  cross-sections
• Channel segment length averages 1.4 river miles
• Flow/EC
• Gauge data already incorporated

11
Salt Slough

• Geometry
• LBNL bathymetry surveys (RM 1 RM 6.4)
• 5 representative cross-sections
• Channel segment length averages 1.3 river miles
• Flow/EC
• Gauge data already incorporated

12
Salt Slough Surveys
13
Salt Slough Surveys
14
West Side Flows
15
General Process

• Obtain flow and EC data from data collection team
• Only 2005 data (January November) available
  (December values calculated as an average of
  January and November values)
• Develop monthly relationships based on 15-minute
  data
• Compare data with current DSM2 inputs

16
West Side Data

• Del Puerto Creek
• Hospital Creek
• Ingram Creek
• Moran Drain
• Marshall Drain
• Spanish Drain
• Westley Wasteway
• New Jerusalem
• Ramona Lake

17
West Side Flows for 2005
18
West Side EC for 2005
19
Del Puerto Creek Flow

• 2005 Data quality fair
• 2005 flows capped at 200cfs (to remove erroneous
  data)

• Seasonal peaks differ in time and magnitude from
  DSM2 data (USGS)

20
Del Puerto Creek EC

• 2005 Data quality good
• DSM2 assumed same EC as Orestimba Creek

• Relatively good agreement with DSM2 data

21
Hospital and Ingram Creek Flow

• 2005 Data quality very good
• Flow data for Ingram Creek prior to June 15
  determined based on flow relationship with
  Hospital Creek
• DSM2 combined flow for Hospital and Ingram Creek
• DSM2 calculated flows based on relationship with
  Del Puerto Creek

• Average monthly values much lower than DSM2
  except for July-September
• Timing of Peaks is off

22
Hospital and Ingram Creek EC

• 2005 Data quality very good
• DSM2 assumed same EC as Orestimba Creek

• EC monthly averages for Hospital Creek are lower
  than DSM2
• EC monthly averages for Ingram Creek are higher
  than DSM2

23
Marshall, Moran and Spanish Drains

• Not included in original SJR model
• Flow Data for Spanish Drain not yet available

24
Ramona Lake

• Flow data not yet available

25
Westley Wasteway

• Negative flows in 2005 field data were assumed to
  be zero

• DSM2 assumed a constant flow (2 cfs) and EC (1000
  uS/cm) for Westley

26
New Jerusalem

• EC data between 11/26 and 12/31 was discarded
  (mostly zero values)
• Flow data not yet available

27
Next Steps

• Transfer data to Systech
• Continue assessing data quality
• Improve model calibration, focusing on east and
  west side drainage, river diversions and
  groundwater accretions
• Address channel geometry data gaps for
  Stanislaus, Tuolumne and Merced Rivers