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Western Coastal and Marine Geology

U.S. Geological Survey
Open-File Report 2007-1169

2005 Hydrographic Survey of South San Francisco Bay, California

by Amy C. Foxgrover1, Bruce E. Jaffe1, Gerald T. Hovis2, Craig A. Martin2, James R. Hubbard3, Manoj R. Samant2, and Steve M. Sullivan4

2007

1U.S. Geological Survey Pacific Science Center, Santa Cruz, Calif.
2NOAA National Ocean Service CO-OPS, Silver Spring, Md.
3Retired, formerly with NOAA National Ocean Service CO-OPS, Silver Spring, Md.
4Sea Surveyor, Inc., Benicia, Calif.

Abstract

An acoustic hydrographic survey of South San Francisco Bay (South Bay) was conducted in 2005. Over 20 million soundings were collected within an area of approximately 250 sq km (97 sq mi) of the bay extending south of Coyote Point on the west shore, to the San Leandro marina on the east, including Coyote Creek and Ravenswood, Alviso, Artesian, and Mud Sloughs. This is the first survey of this scale that has been conducted in South Bay since the National Oceanic and Atmospheric Administration National Ocean Service (NOS) last surveyed the region in the early 1980s. Data from this survey will provide insight to changes in bay floor topography from the 1980s to 2005 and will also serve as essential baseline data for tracking changes that will occur as restoration of the South San Francisco Bay salt ponds progress. This report provides documentation on how the survey was conducted, an assessment of accuracy of the data, and distributes the sounding data with Federal Geographic Data Committee (FGDC) compliant metadata. Reports from NOS and Sea Surveyor, Inc., containing additional survey details are attached as appendices.

Download this report as a 113-page PDF document (of2007-1169.pdf; 18.2 MB)

Enlarged View of Map

Color-shaded bathymetric relief image of South San Francisco Bay; see caption below.

Figure 14 (above) of this report shows the sounding data gridded using the methods of Foxgrover, et al., (2004) and rendered as color-shaded bathymetric relief.  This file was made from an uncompressed TIFF file. The PDF was made using Zip compression that is a non-data-loss compression method. The resulting file is large but of both high-resolution and high sharpness.

Download this figure as a TIFF file (fig14.tif; 6 MB)

Download this figure as a PowerPoint slide (fig14.ppt; 632 kB)

Download this figure as a 900-dpi, PDF poster, 33 x 29 inches (fig14.pdf; 22.2 MB)

Download Sounding Data

This Open-File Report contains bathymetry data from the 2005 hydrographic survey of South San Francisco Bay, California. The soundings have been thinned to one meter spacing along tracklines and are organized by individual tidal zones (see Figure 13 from the report, below) with 100-m overlap between adjacent zones. With the exception of the far reaches of Coyote Creek, Mud Slough, and Alviso Slough (zones 51-54) that are only referenced to NAVD88, all of the soundings are available relative to both MLLW and NAVD88. The sounding data are provided in comma delimited XYZ (x-coordinate, y-coordinate, depth) format with the accompanying metadata files. The tidal zone boundaries are also available for download in the Environmental Sciences Research Institute’s (ESRI) shapefile format.

Map of South San Francisco Bay showing tidal zone boundary partitions; see caption below.

Figure 13. South Bay soundings available for download and partitioned based upon tidal zone boundaries. Zones not containing any soundings have been removed from the display. MLLW values have been approximated in far south sloughs (zones 51-54) shown above for display purposes only.

Download this figure as a TIFF file (fig13.tif; 1 MB)

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Soundings Relative to NAVD88

Region
Downloadable File
File Size
Unzipped
File Size
Entire Survey (NAVD88) SSFB05_NAVD.zip 23M 91.8M
NAVD88 soundings partitioned by zone (see Figure 13 for reference)
SFB31 SSFB05_NAVD88_z31.zip 396K 1.7M
SFB33 SSFB05_NAVD88_z33.zip 696K 2.7M
SFB34 SSFB05_NAVD88_z34.zip 1.5M 6.8M
SFB35 SSFB05_NAVD88_z35.zip 1.7M 7M
SFB36 SSFB05_NAVD88_z36.zip 1.3M 5M
SFB37 SSFB05_NAVD88_z37.zip 4.6M 18.7M
SFB38 SSFB05_NAVD88_z38.zip 3.2 M 12.3M
SFB39 SSFB05_NAVD88_z39.zip 2.6 M 10.4M
SFB40 SSFB05_NAVD88_z40.zip 1.7 M 6.7M
SFB42 SSFB05_NAVD88_z42.zip 1.3M 5.1M
SFB43 SSFB05_NAVD88_z43.zip 823K 3M
SFB44 SSFB05_NAVD88_z44.zip 1.8M 7.2M
SFB46 SSFB05_NAVD88_z46.zip 172K 668K
SFB47 SSFB05_NAVD88_z47.zip 80K 289K
SFB48 SSFB05_NAVD88_z48.zip 69K 247K
SFB49 SSFB05_NAVD88_z49.zip 21K 74K
SFB50 SSFB05_NAVD88_z50.zip 34K 124K
SFB51 SSFB05_NAVD88_z51.zip 17K 63K
SFB52 SSFB05_NAVD88_z52.zip 57K 214K
SFB53 SSFB05_NAVD88_z53.zip 16K 56K
SFB54 SSFB05_NAVD88_z54.zip 24K 86K
SFB55 SSFB05_NAVD88_z55.zip 45K 164K
SFB56 SSFB05_NAVD88_z56.zip 39K 142K
SFB57 SSFB05_NAVD88_z57.zip 20K 73K
Upper Artesian Slough SSFB05_NAVD88_art.zip 5K 17K
Upper Coyote Creek SSFB05_NAVD88_coy.zip 9K 29K
Upper Mud Slough SSFB05_NAVD88_mud.zip 53K 197K
QC Lines SSFB05_NAVD88_QC.zip 586K 2.3M
NAVD88 Metadata text, FAQ, html, xml
Tidal Zone Shapefile SSFB05_zones.zip

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Soundings Relative to MLLW

Region
Downloadable File
File Size
Unzipped
File Size
Entire Survey (MLLW) SSFB05_MLLW.zip 22.9M 91.1M
MMLW soundings partitioned by zone (see Figure 13 for reference)
SFB31 SSFB05_MLLW_z31.zip 396K 1.7M
SFB33 SSFB05_MLLW_z33.zip 696K 2.6M
SFB34 SSFB05_MLLW_z34.zip 1.5M 6.8M
SFB35 SSFB05_MLLW_z35.zip 1.7M 7M
SFB36 SSFB05_MLLW_z36.zip 1.3M 5M
SFB37 SSFB05_MLLW_z37.zip 4.6M 18.7M
SFB38 SSFB05_MLLW_z38.zip 3.2M 12.4M
SFB39 SSFB05_MLLW_z39.zip 2.7M 10.5M
SFB40 SSFB05_MLLW_z40.zip 1.7M 6.7M
SFB42 SSFB05_MLLW_z42.zip 1.3M 5.1M
SFB43 SSFB05_MLLW_z43.zip 824K 3M
SFB44 SSFB05_MLLW_z44.zip 1.8M 7.2M
SFB46 SSFB05_MLLW_z46.zip 172K 668K
SFB47 SSFB05_MLLW_z47.zip 81K 289K
SFB48 SSFB05_MLLW_z48.zip 69K 247K
SFB49 SSFB05_MLLW_z49.zip 21K 74K
SFB50 SSFB05_MLLW_z50.zip 34K 124K
SFB55 SSFB05_MLLW_z55.zip 45K 164K
SFB56 SSFB05_MLLW_z56.zip 39K 142K
SFB57 SSFB05_MLLW_z57.zip 20K 73K
QC Lines SSFB05_MLLW_QC.zip 586K 2.3M
MLLW Metadata text, FAQ, html, xml
Tidal Zone Metadata text, FAQ, html, xml

Download this report as a 113-page PDF document (of2007-1169.pdf; 18.2 MB)

Download South San Francisco Bay bathymetry map (Fig. 14) as a TIFF file (fig14.tif; 6 MB)

Download South San Francisco Bay bathymetry map (Fig. 14) as a PowerPoint slide (fig14.ppt; 632 kB)

Download South San Francisco Bay bathymetry map (Fig. 14) as a 900-dpi, PDF poster, 33 x 29 inches (fig14.pdf; 22.2 MB)

Download South San Francisco Bay map showing tidal zone boundaries (Fig. 13) as a TIFF file (fig13.tif; 1 MB)

For questions about the content of this report, contact Bruce Jaffe

Suggested citation and version history

USGS Western Coastal & Marine Geology (WCMG)

USGS Coastal & Marine Geology Program

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