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Bed Sediment Classification

Dates

Publication Date
Time Period
2011-04

Citation

Kaplinski, M., Grams, P.E., Hazel, J.E. Jr, Kohl, K., Buscombe, D.D., Tusso, R.B., and Gushue, T.M., 2025, Channel Mapping of the Colorado River in Grand Canyon National Park, Arizona - April 2011, river miles 61 to 88 - Data: U.S. Geological Survey data release, https://doi.org/10.5066/P95BA2Y1.

Summary

Bathymetric, topographic, and grain-size data were collected in April 2011 along a 27-mi (43.5 – km) reach of the Colorado River in Grand Canyon National Park, Arizona. The study reach begins at river mile 61.1, about 0.6 -mi (1 –km) above the confluence of the Colorado and Little Colorado Rivers and ends at river mile 88.1 at the upstream boundary of the Bright Angel Rapid (Phantom Ranch boat beach). Channel bathymetry was mapped using multibeam and singlebeam echosounders, subaerial topography was mapped using ground-based total-stations, and bed-sediment grain-size data were collected using an underwater digital microscope system. These data were combined to produce digital elevation models, spatially variable estimates of digital [...]

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Attached Files

Click on title to download individual files attached to this item.

BedClass_ECG_Apr2011.tif 29.52 MB image/tiff
BedClass_ECG_Apr2011.tif.aux.xml 952 Bytes application/xml
BedClass_ECG_Apr2011.tif.vat.cpg 5 Bytes text/plain
BedClass_ECG_Apr2011.tif.vat.dbf 248 Bytes application/unknown
BedClass_ECG_Apr2011.clr
“Bed classification color map”
68 Bytes text/plain

Purpose

The long-term goal of the Glen Canyon Dam Adaptive Management program for sediment recourses is to increase and retain the volume, area, and distribution of fine sediment (primarily sand) for ecological, cultural, and recreational purposes. This dataset is a component of an effort to monitor the status and trends of sand storage along the Colorado River in Grand Canyon National Park. Several reports (Kaplinski and others, 2009; 2017; 2022) have been published that document the survey methods and post-processing procedures, digital elevation model production and uncertainty assessment, and procedures for bed-sediment classification.

Rights

This work is marked with Creative Commons Zero v1.0 Universal (https://creativecommons.org/publicdomain/zero/1.0/). Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.

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