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  5. Channel narrowing data for the lower Green River in the Canyonlands region, Utah, USA

Channel narrowing data for the lower Green River in the Canyonlands region, Utah, USA

Data for journal manuscript: Channel narrowing by inset floodplain formation of the lower Green River in the Canyonlands region, Utah

Dates

Publication Date
Time Period
1940
Time Period
1951
Time Period
1966
Time Period
1976
Time Period
1988
Time Period
1993
Time Period
2002
Time Period
2009
Time Period
2014
Time Period
2015
Time Period
2016
Time Period
2017

Citation

Walker, A.E., Grams, P.E., Schmidt, J.C., and Kohl, K.A., 2020, Channel narrowing data for the lower Green River in the Canyonlands region, Utah, USA: U.S. Geological Survey data release, https://doi.org/10.5066/P9RNMPLN.

Summary

The 'Channel Width' shapefile data are measurements of the active channel width of the Green River at 1-km intervals in and near Canyonlands National Park, Utah. The active channel was defined as the area of the wetted, or inundated, channel as visible on aerial photographs plus the area of bare (free of vegetation) sand and gravel bars. The active channel for each aerial photograph series was hand digitized on a computer screen in ArcGIS version 9.2. The 'Mineral Bottom' csv data are river channel cross-sections for a 3-km study reach of the Green River upstream from Mineral Bottom, Utah. The study reach is near the mouth of Hell Roaring Canyon, 5 km upstream from the Mineral Bottom boat ramp, which is 85 km upstream from the confluence [...]

Contacts

Point of Contact :
Paul E Grams
Originator :
Alexander E Walker, Paul E Grams, John C Schmidt, Keith A Kohl
Metadata Contact :
Paul E Grams
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Southwest Biological Science Center
USGS Mission Area :
Ecosystems

Attached Files

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

Channel_Narrowing_Metadata.xml
Original FGDC Metadata
View 		53.35 KB application/fgdc+xml
CSV_TXT_Data_Metadata.zip 111.45 KB application/zip
4.21 GB application/zip
Shapefile_Data_Metadata.zip 751.66 KB application/zip

Purpose

The 'Channel Width' shapefile data were developed to quantify changes in channel width of the Green River between 1940 and 2016. The 'Mineral Bottom' channel cross-sections were originally established to study and monitor habitat for endangered fish (Colorado pikeminnow, Ptychocheilus Lucius). Repeat surveys of the cross-sections were completed to evaluate long-term changes in river channel form associated with natural and anthropogenic changes in streamflow regime. The raster images were compiled and referenced for the purpose of measuring changes in the width of the channel of the Green River. The topographic and bathymetric data used to create the digital elevation models were collected to establish baseline information for future studies and to evaluate changes in riverbed elevation that occurred during the 2017 snowmelt flood.

Rights

The author(s) of these data request that data users contact them regarding intended use and to assist with understanding limitations and interpretation. 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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Communities

  • USGS Data Release Products
  • USGS Southwest Biological Science Center (SBSC)

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Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9RNMPLN

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