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Bathymetric Data Collection for Post-levee Repair in the Green River near Tukwila, Washington on 20160512

Metadata Updated: October 29, 2023

Field Data The third ADCP data collection effort for this project was done on May 12, 2016 represented by these bathymetric point locations on the Green River near Tukwila, WA . The stream surface in the vicinity of the project area was flat and water clarity was good. The upstream and downstream extent of the fishing site was identified by the Muckleshoot’s fisheries biologist Martin Fox to correspond with the tribes’ traditional fishing location. Reverse flow was first observed immediately along the right bank at the upstream end of the fishing site where the channel width slightly increases. This area of reverse flow persisted for approximately 2 meters downstream where uniform flow returned across the stream channel. A total of 29 cross-sections were surveyed with the ADCP. The uppermost cross section was surveyed one meter above the riprap bank geometry change. Each successive cross section was approximately one meter downstream from the previous. The most downstream cross section was surveyed where uniform flow was observed across the entire stream channel width. Processed Data USGS provided the mean surface water elevation (or mean stage) as reported for the real-time steamgaging station No. 12113344 approximately 11 river miles upstream of the project surveyed site. The mean stage was estimated over the time period of ADCP data collection for this dataset and was used as the reference elevation for calculating the bed-elevation point data. Latitude, longitude and water depth were exported from the ADCP instrument using VMT (The Velocity Mapping Toolbox), a processing and visualization suite for moving-vessel ADCP measurements (Parsons, D.R., et al., 2013). These data are presented in the accompanying spreadsheet (GreenRiverBathymetry_20160512.csv) where the bed-elevation of the river bottom was calculated by subtracting the measured depth from the mean stage.

Access & Use Information

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:59b2feefe4b08b1644d79eab
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 b87f5546-a895-4b78-84c1-a1e3320a4732
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -122.246807695,47.438644336,-122.246170959,47.438987147
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 7ea58d10966627170cbc1cdc873a55f2d4ecc8c446366b4379b0ffc8903d442f
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -122.246807695, 47.438644336, -122.246807695, 47.438987147, -122.246170959, 47.438987147, -122.246170959, 47.438644336, -122.246807695, 47.438644336}

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