U.S. Geological Survey
Open-File Report 03-265
Grand Canyon Riverbed Sediment Changes, Experimental Release of September 2000 - A Sample Data SetFigure 4. Sidescan sonar images from the pre-release survey R3-00-GC of the "bp1" (below Paria) segment of the Colorado River. Lighter shades indicate low sonar reflectance and darker shades indicate high sonar reflectance. (a) Raw data. (b) MIPS-processed data. Letters indicate same feature before and after processing. Area in rectangle enlarged in Figures 6, 7, and 8.
For more information contact: Florence L. Wong
http://geopubs.wr.usgs.gov/open-file/of03-265/f04sidescan.html U.S. Department of the Interior U.S. Geological Survey Geologic Division Coastal & Marine Geology Program |