USGS

Summary of Suspended-Sediment Concentration Data, San Francisco Bay, California, Water Year 2003

By Paul A. Buchanan and Neil K. Ganju

 

U.S. GEOLOGICAL SURVEY

Data Series 113

Sacramento, California 2005


In cooperation with the
CALFED Bay-Delta Program and the U.S. Army Corps of Engineers, San Francisco District


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Abstract

     Suspended-sediment concentration data were collected in San Francisco Bay during water year 2003 (October 1, 2002-September 30, 2003). Optical sensors and water samples were used to monitor suspended-sediment concentration at two sites in Suisun Bay, three sites in San Pablo Bay, one site in Central San Francisco Bay, and three sites in South San Francisco Bay. Sensors were positioned at two depths at most sites. Water samples were collected periodically and analyzed for concentrations of suspended sediment. The results of the analyses were used to calibrate the output of the optical sensors so that a record of suspended-sediment concentrations could be derived. This report presents the data-collection methods used and summarizes the suspended-sediment concentration data collected from October 2002 through September 2003. Calibration curves and plots of edited data for each sensor also are presented.

Contents

Abstract

Introduction

Purpose and Scope

Study Area

Acknowledgments

Methods

Instrument Description and Operation

Monitoring Sites

Suisun Bay Installations

San Pablo Bay Installations

Central San Francisco Bay Installations

South San Francisco Bay Installations

Water-Sample Collection

Data Processing

Sensor Calibration and Suspended-Sediment Concentration Data

Suisun Bay

Mallard Island

Benicia Bridge

San Pablo Bay

Carquinez Bridge

Mare Island Causeway

Channel Marker 9

Central San Francisco Bay

Point San Pablo

South San Francisco Bay

San Mateo Bridge

Dumbarton Bridge

Channel Marker 17

Summary

References Cited



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