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Force gage measurements to characterize bed mobility in two restored reaches of the lower Merced River, California

Metadata Updated: October 29, 2023

Force gage measurements were used to parameterize a force balance model for the initation of sediment motion and thus characterize bed mobility for two reaches of the lower Merced River in California's Central Valley. These data were acquired to support research intended to evaluate the extent to which large-scale restoration projects provided improved salmon spawning habitat. A related goal of this study was to improve our understanding of the geomorphic factors influencing spawning site selection by salmon. The force gage measurements were made at the Merced River Ranch and Robinson Reach field sites and involved using a spring-resisting force gage to push a given submerged particle in a bed-parallel orientation and recording the minimum force necessary to initiate sediment motion, following the methods of Johnston et al., [1998]. For each particle, we also recorded the grain size class (22, 32, 45, 64, 90 or 128 mm), the length of the a, b and c axes of the sediment grain, and the particle's weight. These values were used to parametrize the force balance model of Wiberg and Smith [1987].

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023
Publisher U.S. Geological Survey
Identifier USGS:5bdb34dfe4b0b3fc5cee1008
Data Last Modified 20200827
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id d345cfb1-dcde-4848-8ab9-c610c7369b3c
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -120.62164306185,37.433431483512,-120.39093017124,37.542399579313
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash e72684dee8839e82b818e085d207260b35158724371321bbb4781618a57a2b89
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -120.62164306185, 37.433431483512, -120.62164306185, 37.542399579313, -120.39093017124, 37.542399579313, -120.39093017124, 37.433431483512, -120.62164306185, 37.433431483512}

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