Mik Lewicki

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Watershed Specific SuspendedSediment Loads
Modeling

• Mik Lewicki
• San Francisco Estuary Institute
• SPLWG
• December 12, 2007

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Introduction

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

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Suspended Sediment Loads Vs. Discharge
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Use all the existing data provide an estimate of
sediment loads from each watershed and per Bay
segments.
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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.