BATHYMETRIC IMAGES

The bathymetric images below were assembled from data gathered by the vessel MV Inland Surveyor from August 2-17, 1998, under a Cooperative Agreement between the US Geological Survey and the Ocean Bathymetric Image -Lake TahoeMapping Group, University of New Brunswick.

The only previously existing bathymetry of Lake Tahoe had been collected in 1923. That data, however, was inadequate for the ongoing and anticipated level of scientific studies for Lake Tahoe, and the latest bathymetry was compiled to fulfill a commitment for more extensive research made during the Lake Tahoe Presidential Forum in 1997.

The very latest in high resolution multibeam sonar mapping systems was employed to create these stunning images. All are courtesy of Gardner, et al. 1998. USGS Open File Report 98-509.


Color Key:

Gray area: land mass
White area: not surveyed
Red area: shallowest
Purple area: deepest

 

 

 

Click on any of the thumbnails below for a larger image and description of the view.

Click on image for larger view and description.
Figure 1.
Oblique view of Lake Tahoe showing a perched channel.		 Click on image for larger view and description.
Figure 2.
Oblique view looking at
a possible fault scarp.		 Click on image for larger view and description.
Figure 3.
Oblique view of Lake Tahoe showing a debris flow.
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Figure 4.
Oblique view of Lake Tahoe looking at a debris avalanche.
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Figure 5.
Oblique view of Lake Tahoe looking at large debris blocks.
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Figure 6.
Oblique view looking at a
large glacial outwash fan.
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Figure 7.
Oblique view looking at a
large glacial outwash fan.
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Figure 8.
Oblique view of Lake Tahoe showing sediment chutes.
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Figure 9.
Oblique view of Lake Tahoe showing sediment aprons.