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Optical and sediment measurements collected from the Blue River and Colorado River, near Kremmling, Colorado, October 17, 2018

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2021-01-19T00:00:00Z
To support an investigation of the feasibility of measuring river bathymetry using remotely sensed data acquired from a small unmanned aircraft system (sUAS), remotely sensed bathymetry and field measurements were collected from two cross-sections on the Blue River and two cross-sections on the Colorado River near Kremmling, CO on October 17-18, 2018. The data in this release include optical measurements using the following sensors: WET Labs ECO, WET Labs ac-s, and LISST 100x. The WET Labs ECO provides measurements of turbidity and chlorophyll and colored dissolved organic matter concentration. The WET Labs ac-s provides information of the absorption and attenuation coefficients of the water sampled across a range of wavelengths. The LISST 100x provides information on the mean grain size of sediment in suspension and the concentration of suspended sediment.

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