-------- Original Message --------
Subject:        SILS Bulletin 07-10 Sand Waves at the Mouth of San Francisco
Bay, CA (Corrected Copy)
Date:   Mon, 22 Oct 2007 10:36:32 -0600
From:   Sheryle J Jackson <[log in to unmask]>
To:     Maps-L




Please replace the following bulletin with the 07-10 Sand Waves Bulletin
that was sent on October 12th. I quoted the wrong price for the map
sheets. The correct price is $7.00 per sheet, instead the $4.00 stated.
I apologize for any confusion this may have caused. Sherry








*SILS Information Bulletin *

*Number: 07-10 Sand Waves at the Mouth of San Francisco Bay, California*
* **By: Patrick L. Barnard, Daniel M. Hanes, Rikk G. Kvitek, and Pat J.
Iampietro*
*Date: October 22, 2007*
*Stock #: 207015 (sheet 1), 207011 (sheet 2), 206996 (sheet 4) *
* (Scientific Investigation Map 2944)*
*Price: $7.00 per sheet, plus $5.00 handling per order*

Some of the largest sand waves in the world are located just west of the
Golden Gate Bridge. These waves have been formed by abundant sediment
and extremely powerful tidal currents. A multibeam bathymetric survey
that produced unprecedented high resolution images of the mouth of San
Francisco Bay was conducted in 2004 and 2005. The survey, performed over
forty-four days by the Seafloor Mapping Lab at California State
University, Monterey Bay, consisted of 1,138 track lines, 1.1 billion
soundings, and covered an area of 154 km2 (60mi2). The goals of this
survey were to analyze sediment transport pathways at the mouth of San
Francisco Bay and to calculate bathymetric change since the last survey
was completed in 1956. The survey showed that significant bathymetric
changes have occurred over the past fifty years.

This project was accomplished by the U.S. Geological Survey, the United
States Army Corps of Engineers, San Francisco District, and NOAA’s
Coastal Observation Technology System (COTS) Center for Integrative
Coastal Observation, Research and Education (CICORE) program.

The five sheet set of maps shows views of the sand waves on the seafloor
from different perspectives, along with descriptive text.
Sheet 1 contains the main text and illustrations
Sheet 2 shows the large perspective view of the sand wave field at the
mouth of San Francisco Bay, just seaward of the Golden Gate Bridge
Sheet 3 contains the shaded relief image of the floor of the mouth of
San Francisco Bay
Sheet 4 shows four perspective views of sand waves at the mouth of San
Francisco Bay, just seaward of the Golden Gate Bridge
Sheet 5 shows diverse sand waves at the mouth of the SF Bay, just
seaward of the Golden Gate Bridge
*All five sheets are available in digital format, but only sheets; one,
two, and four are available for sale in hardcopy. *

Digital files are available at /_http://pubs.usgs.gov/sim/2006/2944_/.
The paper maps are available from the USGS Science Information and
Library Services (SILS). To place an order, call the SILS offices at
1-888-ASK-USGS, or online through the USGS store at:
/_http://store.usgs.gov_//_. _/
/_ _/ /_ _/
Sheryle Girk-Jackson 303 202 4176, FAX 303 202 4633, email:
[log in to unmask]

Sheryle J. Girk-Jackson
Technical Information Specialist/Business Acquisitions
USGS/ESIC