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Mik Lewicki San Francisco Estuary Institute SPLWG December 12, 2007 Watershed Specific Suspended Sediment Loads Modeling.

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Presentation on theme: "Mik Lewicki San Francisco Estuary Institute SPLWG December 12, 2007 Watershed Specific Suspended Sediment Loads Modeling."— Presentation transcript:

1 Mik Lewicki San Francisco Estuary Institute SPLWG December 12, 2007 Watershed Specific Suspended Sediment Loads Modeling

2 Introduction Suspended sediment loads are influenced by climate, geology and tectonics, soils, basin size and slope, land use and management.

3 Suspended Sediment Loads Vs. Discharge

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9 Alameda Ck. At Niles Arroyo De La Laguna Near Pleasanton Alamewda Ck. Below Welch Ck. Near Sunol Arroyo Valle Near Livermore Arroyo Valle Below Lang Canyon Near Livermore Cull Ck. Above Cull Ck. Reservoir Near Castro Valley Cull Ck. Below Cull Creek Dam Near Castro Valley San Lorenzo Ck. Above Don Castro Reservoir Near Castro Valley Water Year , , ,405 52, , ,569 15, , , , , , , , , , , , ? ,6418, , , ,217 66, ,180 80, ,508 10, ,186 3, ,908 47, ,359 3, , ,328 4, , , , , , ,081 21, ,41243,35513,887 8,116 27, ,4627, ,09916,7641,441 1,496 3, ,341207,2958,230 10,216 79, , , ,401

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11 Results Information from these studies will be combined with information from other studies mainly through mass budgets to provide a more complete picture of temporal trends and spatial patterns in contaminant loads in the Bay We hope to learn where it might be the most appropriate to apply limited resources to achieve mass loading target, loads avoided target, or a sediment concentration target.


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