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Lake Tahoe Bathymetric Images Featured in "Wonders of the Universe" Calendar
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Image for the month of May in
Hansen Planetarium's 2001 "Wonders of the Universe" calendar. Oblique view of Lake Tahoe
shaded-relief bathymetry looks west toward McKinney Bay on the lake's western margin. Distance
across bottom of image is ~3.5 km. Vertical exaggeration is 3 times the horizontal distance.
The colored region is the lake floor; the gray-scale region is the surrounding land. This view
shows large debris blocks scattered on the lake floor (foreground) and remnants of a large slope
failure and sediment tongue (background). The image can be viewed
on-line.
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The Hansen Planetarium of Salt Lake City has chosen two USGS
images of the bathymetry of Lake Tahoe to illustrate in its 2001 "Wonders of the Universe" calendar.
The images were created from high-resolution multibeam bathymetric data gathered in the summer of
1998 by Jim Gardner, Pete Dartnell, and others. The image chosen for the month of May 2001, entitled
"Lake Tahoe's Underworld," is an oblique view of a large slope failure in McKinney Bay on the west
margin of Lake Tahoe and an associated debris field extending across the lake bottom. A close-up of
the slope failure is shown on the calendar's cover. The on-line USGS Open File Report 98-509,
"Bathymetry and Selected Perspective Views of Lake Tahoe, California and Nevada,"
describes how the multibeam data were collected
and processed. Numerous images from the 1998 survey can be found on the
CMGP Pacific Seafloor Mapping Web site.
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Dec. 2000 / Jan. 2001
in this issue:
Santa Rosa Island
cover story:
MRIB: Ocean Geo-Library
Nat'l Geography Awareness Week
WHFC GIS Day
Lake Tahoe: "Wonders of the Universe" Calendar
Plymouth County Detention Center
African Dust
Bill Normark Interview
Rock Course for Teachers
Geologic Framework of U.S. Coastal & Marine Regions
Coastal Marsh Die-Back
Southwest Washington Coastal Erosion
Southeatern U.S. Benthic Habitat
Southern California Benthic Habitat
9th International Coral Reef Symposium
Gulf of Maine
Long Island Sound
WHFC at RRT
Distinguished Lecturer
Earthquake Hazards Video
Hapke Honored by CSBPA
Senior Leadership Visit
Director's Office & NOAA Visitors
Suspension Modeling
Dec./Jan. Publications List
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U. S. Department of the Interior | U.S. Geological Survey
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