U.S. Geological Survey
Open-File Report 02-014
Change and Effects on Water
Quality and Ecosystem Health in the
Lake Tahoe Basin, Nevada and California: Year-1 Progress
Forney, Christian Raumann, Timothy B. Minor,
J. LaRue Smith, John Vogel, and Robert Vitales
As part of the requirements
for the Geographic Research and Applications Prospectus grants, this Open-File
Report is the second of two that resulted from the first year of the project.
The first Open-File Report (OFR 01-418) introduced the project, reviewed
the existing body of literature, and outlined the research approach. This
document will present an update of the research approach and offer some
preliminary results from multiple efforts, specifically, the production
of historical digital orthophoto quadrangles, the development of the land
use/land cover (LULC) classification system, the development of a temporal
transportation layer, the classification of anthropogenic cover types
from the IKONOS imagery, a preliminary evaluation of landscape ecology
metrics (quantification of spatial and temporal patterns of ecosystem
structure and function with appropriate indices) and their utility in
comparing two LULC systems, and a new initiative in community-based science
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For questions about the scientific content of this report, contact William Forney
This report is only available on the Web.
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