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1 Working with D-Flow Flexible Mesh in the San Francisco Estuary Gerben de Boer, Arthur van Dam, Ali Dastgheib, Edwin Elias, Bruce Jaffe, Bert Jagers,

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Presentation on theme: "1 Working with D-Flow Flexible Mesh in the San Francisco Estuary Gerben de Boer, Arthur van Dam, Ali Dastgheib, Edwin Elias, Bruce Jaffe, Bert Jagers,"— Presentation transcript:

1 1 Working with D-Flow Flexible Mesh in the San Francisco Estuary Gerben de Boer, Arthur van Dam, Ali Dastgheib, Edwin Elias, Bruce Jaffe, Bert Jagers, Noah Knowles, Herman Kernkamp, Hans Los, Lisa Lucas, Dano Roelvink, Mick van der Wegen and others

2 km California San Francisco Los Angeles Sacramento Courtesy J. Cloern California

3 3 Delta 2 San Francisco Bay Sacramento R. San Joaquin R. Sierra Nevada Pacific Ocean Courtesy J. Cloern

4 4 4 San Joaquin Sacramento river Bay

5 5 5 Characteristic river discharge

6 6 6 Water export

7 7 San Francisco Estuary in the 1980s Area: ~1200 km 2 Average depth: 7 m Median depth: m Deepest point: ~120 m (Golden Gate) San Pablo Bay Central Bay Suisun Bay South Bay Jaffe 2009

8 8 8 San Pablo Bay

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10 10

11 11 Cascade project 1.3 M USD Financed by USGS and DWR California Scientific approach to study climate change impact on water quality dynamics Central place for D-Flow Flexible Mesh

12 12 October 12, 2010 Flexibility: Orthogonal curvilinear grids + triangles + pentagons+…

13 13 October 12, 2010 Flexibility: Orthogonal curvilinear grids + triangles + pentagons+…

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17 17

18 18 High Qr

19 19 High Qr Low Qr Pumping No pumping

20 20 Calibration periods Dec Mar (high Q) Jul – Oct (low Q) Water level plots at GGT

21 21

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28 28 WL Amplitudes South bay North bay up to Sacramento

29 29 Phases South bay North bay up to Sacramento

30 30 D region A region B region C region E region F region

31 31 landward Water level amplitudes Delta model measurement

32 32 Modeling Scenarios CasCade 2 Impact of Changing river flow (100 years) Sea level rise (100 years) Anthropogenic acts (10 years) on SSC and morphodynamics Selenium contamination Valve distribution and contamination Phytoplankton growth

33 33

34 34 34

35 35 35 SWP Pumps CVP Pumps Stockton Sacrament o

36 36 System Vulnerabilities 36

37 37 Below Sea Level m Land Subsidence Due to Farming & Peat Soil Oxidation -6.1 M (- 20 ft.) -1.5 M (- 5 ft.) 4.6 M (- 15 ft.) M (- 15 ft.) M (- 25 ft.)

38 38 SJ River SWP Pumps CVP Pumps Sac River Stockton Sacramento Bay Delta Conservation Plan Conveyance options

39 39 East Canal~ $8 billion * West Canal~ $ billion * All Tunnel~ $ billion * 39 Preliminary Subject to Revision Thanx to Peter Wijsman (Arcadis) for slides

40 40 Fin


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