-------- Original Message --------
Subject:        SILS Bulletin 07-02 Bathymetric of Great Salt Lake (south part)
Date:   Mon, 12 Mar 2007 10:50:35 -0600
From:   Sheryle J Jackson <[log in to unmask]>
To:     maps-l

*SILS Information Bulletin *

*Number:  07-02 Bathymetric Map of the _South Part_ of the Great Salt Lake*
*                            (SIM 2894)  By: Robert L. Baskin & David V.
Allen*
*                            & Calculation of Area and Volume for the
_South_*
*                            _Part _of the Great Salt Lake, Utah (OFR
2005-1327)  *
*Date:        March 12, 2007            *


*New USGS Maps Change Thinking about the Great Salt Lake*

The U.S. Geological Survey (USGS) in cooperation with the Utah
Department of Natural Resources, Division of Wildlife Resources,
released the first of two new maps defining the bottom surface of the
  Great Salt Lake, Utah.  This map provides the first detailed,
systematic survey of the southern portion of the lake.  The data was
collected to better define the physical characteristics of the lake,
provide data for improved calculations of area and volume, and provide
lake bottom contour information that could be used in future efforts to
develop a general circulation model of the lake.

Prior to the 1980’s detailed information about many aspects of the Great
Salt Lake, including bathymetric data was scarce.  Flooding in the early
1980’s increased concern for the lake’s ecosystem.   Avian resources and
the emergence of the brine shrimp industry created both public interest
and management concern.  To fill the need for a better understanding of
the physical and chemical characteristics of the lake, how the lake
functions, and how man is affecting these characteristics and functions,
bathymetric data was collected for the south part of the Great Salt Lake
during 2002-04 using a single-beam, high-definition fathometer and
real-time differential global positioning system were used.

Efforts are underway to use this new data for lake circulation modeling,
chemical transport, and to better define the relationship between lake
bathymetry and its biological and ecological components.  The
bathymetric map and accompanying information sheets can be found on the
Internet: /Bathymetric Map of the South Part of Great Salt Lake, Utah,
2005.//_ http://pubs.usgs.gov/sim/2005/2894_/_/.  _/Calculation of Area
and Volume for the South Part of Great Salt Lake, Utah.//_
  http://pubs.usgs.gov/of/2005/1327/._/_  _This map is available online
for viewing and downloading.

For information on other USGS products and services, call the SILS
offices at:
1-888-ASK-USGS, or go 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