Applying WARMF to the SJRApplying WARMF to the SJR

• Replaces DSM2 from Bear Creek to Replaces DSM2 from Bear Creek to MossdaleMossdale

• Offers expanded model domain, including Offers expanded model domain, including tributaries and land areatributaries and land area

• Links seamlessly to Link-Node Model in Links seamlessly to Link-Node Model in Deep Water Ship Channel*Deep Water Ship Channel*

• Simulates key parameters responsible for Simulates key parameters responsible for low dissolved oxygen in DWSC: nutrients, low dissolved oxygen in DWSC: nutrients, organic matter, sediment, algaeorganic matter, sediment, algae

WARMF InputsWARMF Inputs

• Upstream San Joaquin River Upstream San Joaquin River

• Stanislaus, Tuolumne, Merced RiversStanislaus, Tuolumne, Merced Rivers

• Salt Slough, Mud Slough, Orestimba Salt Slough, Mud Slough, Orestimba CreekCreek

• Known return flows, Modesto WQCFKnown return flows, Modesto WQCF

Boundary Conditions DataBoundary Conditions Data

BoundaryBoundary Flow InputFlow Input Water Quality InputWater Quality Input

Stanislaus River at Stanislaus River at SJRSJR at Riponat Ripon

at Caswell S.P.at Caswell S.P.

at Goodwin Damat Goodwin Dam

at Riponat Ripon

Tuolumne River at Tuolumne River at SJRSJR at Modestoat Modesto

at Shiloh Roadat Shiloh Road

below LaGrange below LaGrange DamDam

Merced River at SJRMerced River at SJR near Stevinsonnear Stevinson near Stevinsonnear Stevinsonnear Newmannear Newman

San Joaquin at Bear San Joaquin at Bear CkCk near Stevinsonnear Stevinson near Stevinsonnear Stevinson

Salt SloughSalt Slough at Highway 165at Highway 165 at Highway 165at Highway 165

Mud SloughMud Slough near Gustinenear Gustine near Gustinenear Gustine

Orestimba CreekOrestimba Creek near Crows Landingnear Crows Landing near Crows Landingnear Crows Landing

Return Flow Data – East Return Flow Data – East SideSide

TID Lower Stevinson SpillTID Lower Stevinson Spill monthly estimatesmonthly estimates

TID Harding DrainTID Harding Drain 2005: daily data; monthly 2005: daily data; monthly estimatesestimates

TID Lateral 6 & 7 SpillTID Lateral 6 & 7 Spill 2005: daily data; monthly 2005: daily data; monthly estimatesestimates

TID Lateral 5 DrainTID Lateral 5 Drain monthly estimatesmonthly estimatesTID Lateral 3 DrainTID Lateral 3 Drain monthly estimatesmonthly estimates

TID Lateral 2 DrainTID Lateral 2 Drain 2005: daily data; monthly 2005: daily data; monthly estimatesestimates

MID Main DrainMID Main Drain 2005: daily data; monthly 2005: daily data; monthly estimatesestimates

MID Lateral 6 SpillMID Lateral 6 Spill 2005: daily data; monthly 2005: daily data; monthly estimatesestimates

MID Lateral 5 SpillMID Lateral 5 Spill 2005: daily data; monthly 2005: daily data; monthly estimatesestimates

MID Lateral 4 SpillMID Lateral 4 Spill 2005: daily data; monthly 2005: daily data; monthly estimatesestimates

Return Flow Data – West Return Flow Data – West SideSide

Spanish Land Grant DrainSpanish Land Grant Drain 2005: daily data; monthly 2005: daily data; monthly estimatesestimates

Moran DrainMoran Drain 2005: daily data; monthly 2005: daily data; monthly estimatesestimates

Marshall Road DrainMarshall Road Drain 2005: daily data; monthly 2005: daily data; monthly estimatesestimates

Westley WastewayWestley Wasteway 2005: daily data; monthly 2005: daily data; monthly estimatesestimates

EC data available in 2005; monthly EC estimated

Major cations and anions (other than nutrients) adjusted to match EC.

Model DomainModel Domain

Point SourcesPoint Sources

Example Input DataExample Input Data

Gaging StationsGaging Stations

Water Quality StationsWater Quality Stations

Flow Output – SJR @ Flow Output – SJR @ StevinsonStevinson

Flow Output – SJR @ Flow Output – SJR @ NewmanNewman

Flow Output – SJR @ Crows Flow Output – SJR @ Crows LdgLdg

Flow Output – SJR @ Flow Output – SJR @ PattersonPatterson

Flow Output – SJR @ Flow Output – SJR @ VernalisVernalis

Unaccounted Water Gain Unaccounted Water Gain (2003)(2003)

-1500

-1000

-500

0

500

1000

10/1

/02

10/1

5/02

10/2

9/02

11/1

2/02

11/2

6/02

12/1

0/02

12/2

4/02

1/7/

03

1/21

/03

2/4/

03

2/18

/03

3/4/

03

3/18

/03

4/1/

03

4/15

/03

4/29

/03

5/13

/03

5/27

/03

6/10

/03

6/24

/03

7/8/

03

7/22

/03

8/5/

03

8/19

/03

9/2/

03

9/16

/03

9/30

/03

Flo

w G

ain

, cfs

Stevinson to Newman

Newman to Crows Landing

Crows Landing to Patterson

Patterson to Vernalis

EC Output – SJR @ Crows EC Output – SJR @ Crows LdgLdg

EC Output – SJR @ PattersonEC Output – SJR @ Patterson

EC Output – SJR @ MossdaleEC Output – SJR @ Mossdale

TSS Output – SJR @ TSS Output – SJR @ PattersonPatterson

TSS Output – SJR @ Maze RdTSS Output – SJR @ Maze Rd

TSS Output – SJR @ VernalisTSS Output – SJR @ Vernalis

TSS Output – SJR @ TSS Output – SJR @ MossdaleMossdale

Sources of SedimentSources of Sediment

Algae Output – SJR @ Algae Output – SJR @ PattersonPatterson

Algae Output – SJR @ Maze Algae Output – SJR @ Maze RdRd

Algae Output – SJR @ Algae Output – SJR @ VernalisVernalis

Algae Output – SJR @ Algae Output – SJR @ MossdaleMossdale

Calibration of other Calibration of other parametersparameters• Temperature:Temperature:

No systematic errorsNo systematic errors• Nitrogen:Nitrogen:

Simulated NH4-N too low from Simulated NH4-N too low from Patterson to Mossdale; NO3-N too Patterson to Mossdale; NO3-N too high; TN is OKhigh; TN is OK

• Phosphorus:Phosphorus:Simulated PO4-P, TP too low from Simulated PO4-P, TP too low from Patterson to MossdalePatterson to Mossdale

Next StepsNext Steps

• Accounting for flow & TDS imbalanceAccounting for flow & TDS imbalance– Investigate groundwater & drain Investigate groundwater & drain

assumptionsassumptions

• Modify calibration and/or algorithms Modify calibration and/or algorithms to match observed algae datato match observed algae data

• Expand simulation of tributaries Expand simulation of tributaries and/or land areaand/or land area