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Statistical and Spatial Analysis of Bathymetric Data for the St. Clair River, 1971-2007

Scientific Investigations Report 2009-5044

Prepared in cooperation with the International Upper Great Lakes Study Board and U.S. Army Corps of Engineers
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Abstract

To address questions concerning ongoing geomorphic processes in the St. Clair River, selected bathymetric datasets spanning 36 years were analyzed. Comparisons of recent high-resolution datasets covering the upper river indicate a highly variable, active environment. Although statistical and spatial comparisons of the datasets show that some changes to the channel size and shape have taken place during the study period, uncertainty associated with various survey methods and interpolation processes limit the statistically certain results. The methods used to spatially compare the datasets are sensitive to small variations in position and depth that are within the range of uncertainty associated with the datasets. Characteristics of the data, such as the density of measured points and the range of values surveyed, can also influence the results of spatial comparison. With due consideration of these limitations, apparently active and ongoing areas of elevation change in the river are mapped and discussed.

Geospatial Extents

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Statistical and Spatial Analysis of Bathymetric Data for the St. Clair River, 1971-2007
Series title:
Scientific Investigations Report
Series number:
2009-5044
Year Published:
2009
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Great Lakes Science Center
Description:
iv, 58 p.
Number of Pages:
65
Time Range Start:
1971-01-01T12:00:00
Time Range End:
2007-12-31T12:00:00
Country:
Canada;United States
State:
Michigan;Ontario
Other Geospatial:
St. Clair River
Online Only (Y/N):
Y