Measurements of Slope Current and Environmental Geochemistry near the Western Boundary of the Gulf of the Farallones National Marine Sanctuary

Noble, Marlene A.; Xu, Jingping; Kolak, Jon; Gartner, Anne L.; Rosenberger, Kurt J.

Abstract:

INTRODUCTION For nearly a decade, dredged material from San Francisco Bay has been deposited at theU.S. Environmental Protection Agency (EPA) Region IX designated disposal site on thecontinental slope west of the Farallon Islands. Over the past several years, annual disposalvolumes have ranged from 136,170 m3 (61 barge loads) to 2,407,600 m3 (1,173 barge loads)(Ota, personal communication, 2000). The EPA has conducted extensive studies to evaluate thefate and effects of the disposed material (Abdelrhman, 1992; Tetra-Tech, 1992; SAIC, 1992).The EPA has also maintained a long-term monitoring program to collect hydrodynamic, sedimentary, chemical, and biological data that are used to determine whether the dredgedmaterial adversely affects the ecology of adjacent water bodies and whether it moves from thedisposal site, especially into the Gulf of the Farallones National Marine Sanctuary. As part ofthis monitoring program, the U.S. Geological Survey (USGS) Coastal and Marine GeologyProgram (CMGP) deployed arrays of instruments on three moorings near the EPA disposal sitefrom November 1997 to November 1998. This report describes the results and findings of thisfield monitoring experiment.

Genre:

USGS Numbered Series

ProdID:

80790

Citation Author:

Noble, Marlene A.; Xu, Jingping; Kolak, Jon; Gartner, Anne L.; Rosenberger, Kurt J.

Citation Contributing Office:

USGS Western Coastal and Marine Geology

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Version 1.0

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Citation Language:

ENGLISH

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Citation LatN:

0381500

Citation LatS:

0370000

Citation LonE:

-1221500

Citation LonW:

-1234500

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Citation Phsyical Description:

iv, 113 p.

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Citation Publisher:

Geological Survey (U.S.)

Citation Series:

Open-File Report

Citation Series Code:

OFR

Citation Series Number:

2006-1288

Citation Search Results Text:

Measurements of Slope Current and Environmental Geochemistry near the Western Boundary of the Gulf of the Farallones National Marine Sanctuary; 2007; OFR; 2006-1288; Noble, Marlene A.; Xu, Jingping; Kolak, Jon; Gartner, Anne L.; Rosenberger, Kurt J.