GLERL What's New: 1996
1996 PRESS RELEASE
Contact: Patricia Viets Troy Holcombe
(301)457-5005 (303)497-6390
Patricia.W.Viets@noaa.gov tholcombe@ngdc.noaa.gov
NOAA Produces New Map and Digital Data Sets of Lake Michigan Lakefloor
Topography
Oceanographers have compiled a new map that more clearly depicts previously
known physical features of the lakefloor of Lake Michigan and reveals a
number of features seen for the first time. The poster and accompanying
data base on CD-ROM are now available to the public, the Commerce Department's
National Oceanic and Atmospheric Administration announced today.
More than 600,000 high-quality depth measurements, or soundings, collected
over a 120-year period were used in making the new map. The data, collected
by NOAA's National Ocean Service/Coast Survey and the Army Corps of Engineers,
were originally collected for nautical charting, but fully assembled,
they constitute the best data set available for compiling bathymetry,
or lakefloor topography.
Both the poster and the CD-ROM picture files may be viewed in 3-D using
Chromadepth (tm) high-definition glasses, which will be distributed with
the poster. The 3-D effect is particularly enhanced in custom plotter
versions of the poster which are plotted using high-intensity color inks.
The oceanographers involved with the project are from NOAA's National
Environmental Satellite, Data, and Information Service/National Geophysical
Data Center; NOAA's Office of Oceanic and Atmospheric Research/Great
Lakes Environmental Research Laboratory; and the University of Colorado's
and NOAA's Cooperative Institute for Research in Environmental Sciences
(CIRES).
New bathymetry for the four international Great Lakes is being prepared
in a cooperative effort between NOAA and the Canadian Hydrographic Service.
The University of Minnesota Large Lakes Observatory is also cooperating
in the preparation of new bathymetry for Lake Superior.
For more information and sample imagery, visit NGDC's Lake Michigan
web page at:
http://www.ngdc.noaa.gov/mgg/announcements/announce_lakemich.html
To order the color poster or the CD-ROM, contact:
Robin Warnken
National Geophysical Data Center
325 Broadway
Boulder, CO 80303
303-497-6338
303-497-6513 (FAX)
rwarnken@ngdc.noaa.gov
The poster is $20.00 and the CD-ROM is $50.00.
NOTE: Information about NOAA's National Geophysical Data Center can
be found on the Internet at http://www.ngdc.noaa.gov.
NOTE: All NOAA press releases, and links to other NOAA material, can
be found on the Internet at
http://www.noaa.gov/public-affairs . Journalists who wish to be added
to our press release distribution list, or who wish to switch from fax
to e-mail delivery, can send an e-mail to releases@www.rdc.noaa.gov , or fax to (202) 482-3154.
NOAA constituents can send an e-mail to constaff@www.rdc.noaa.gov, or fax
to (202) 501-2953.
Last updated: September 12, 2002 mbl
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