Carl J. Legleiter Paul J. Kinzel Brandon T. Overstreet 2018 The data consist of a *.csv comma-separated text file containing the bathymetric survey data in three columns: Easting, Northing, Depth, all in units of meters. Reston, VA U.S. Geological Survey https://doi.org/10.5066/F7HT2N96 The U.S. Geological Survey conducted a bathymetric survey of a reach of the Deschutes River near Bend, OR, between Benham Falls and Dillon Falls on July 25, 2016, to support research on remote sensing of river discharge and characterization of habitat for amphibians, particularly the Oregon Spotted Frog. The bathymetric survey data were obtained with an ITER Systems Bathyswath-1 468 kHz multi-beam echo sounder deployed from a customized research cataraft. The Bathyswath Swath Processor software package was used to acquire the raw data, which then were post-processed, filtered, and gridded using the Bathyswath Grid Processor program. The final output file included in this data release consists of gridded depth measurements in a three-column, comma-separated *.csv text file with easting (x) and northing (y) coordinates and depths, all in units of meters; the projection and datum are UTM Zone 10N and NAD83. These field-based depth measurements were used in combination with hyperspectral image data to develop improved methods of estimating water depth via remote sensing. The U.S. Geological Survey conducted a bathymetric survey of a reach of the Deschutes River near Bend, OR, between Benham Falls and Dillon Falls on July 25, 2016, to support research on remote sensing of river discharge and characterization of habitat for amphibians, particularly the Oregon Spotted Frog. These field-based depth measurements were used in combination with hyperspectral image data to develop improved methods of estimating water depth via remote sensing. 20160725 ground condition Complete None planned -121.5225219679 -121.36322021009 44.002693501858 43.848393763499 USGS Thesaurus bathymetry depth multibeam echo sounder rivers survey USGS Metadata Identifier USGS:59fb89f3e4b0531197b16a4c Geographic Names Information System (GNIS) Deschutes River Oregon Bend Benham Falls Dillon Falls none none Carl J Legleiter U.S. Geological Survey Geomorphology and Sediment Transport Laboratory mailing and physical

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Golden CO 80403 US 303-271-3651 cjl@usgs.gov Depths measured with the ITER Systems Bathyswath-1 468 kHz multibeam echo sounder were cross-checked against depths measured with an Ohmex SonarMite single-beam echo sounder. No formal logical accuracy tests were conducted Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. No formal positional accuracy tests were conducted No formal positional accuracy tests were conducted Bathymetric survey data were collected from a reach of the Deschutes River between Benham Falls and Dillon Falls on July 25, 2016, using an ITER Systems Bathyswath-1 468 kHz multibeam echo sounder deployed from a customized research cataraft. Detailed information on this instrument is available from the manufacturer's web site: http://bathyswath.com/Bathyswath-1. The Bathyswath Swath Processor software package was used during acquisition to operate the echo sounder and record the raw data. Positioning was achieved using a Trimble SPS461 GPS receiver with real-time corrections from and a local real-time kinematic (RTK) GPS base station. The map projection and datum for these data are UTM Zone 10N and NAD83. For the purposes of this data release, only horizontal spatial coordinates and depths are included, not channel bed elevations. 20160728 Paul Kinzel USGS Geomorphology and Sediment Transport Laboratory mailing and physical

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Golden CO 80403 US 303-278-7941 pjkinzel@usgs.gov The raw survey data were post-processed, filtered, and gridded using the Bathyswath Grid Processor program. Filters applied include: 1) A despike filter with a limit of 1.0, window of 3, and occupancy of 20%. 2) A smoothing filter applied to all values on the same lines with a window of 3. 3) An interpolation filter with a range of 3.00, which served to interpolate the data onto a regular grid with a 0.5 m grid node spacing. The filtered, gridded data were exported as a text file with three columns: Easting (m), Northing (m), Depth (m). Negative depths along the edges of the channel were an artifact of the gridding (interpolation) process and were removed from the output file included in this data release. 20170307 Paul J Kinzel USGS Geomorphology and Sediment Transport Laboratory mailing and physical

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Golden CO 80403 United States 303-278-7941 pjkinzel@usgs.gov Deschutes River, Oregon, Bend, Benham Falls, Dillon Falls Point Transverse Mercator 0.9996 -123.0 0.0 500000.0 0.0 coordinate pair 0.01 0.01 METERS NAD83 GRS80 6378137.0 298.257222101 DeschutesBathymetricSurvey Bathymetric survey data in three columns: Easting, Northing, Depth, all in units of meters. The projection and datum are UTM Zone 10N and NAD83. Producer defined Easting (m) Easting (X) coordinate in UTM Zone 10N, NAD 83 Producer defined 625900 627100 meters Northing (m) Northing (Y) coordinate in UTM Zone 10N, NAD 83 Producer defined 4866400 4868200 meters Depth (m) Water depth, in meters, measured with the multibeam echo sounder Producer defined 0 10 meters U.S. Geological Survey - ScienceBase mailing and physical

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Denver CO 80225 USA 1-888-275-8747 sciencebase@usgs.gov 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 on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. The data you have secured from the U.S. Geological Survey (USGS) database identified as "Bathymetric survey data from the Deschutes River near Bend, OR, July 25, 2016" have not received USGS approval and as such are provisional and subject to revision. The data are released on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. The data are provided as a *.csv comma-separated text file that can be opened with a text editor such as Notepad, a spreadsheet program such as Excel, or a numerical computing software package such as MATLAB. 20200831 Carl J Legleiter U.S. Geological Survey Geomorphology and Sediment Transport Laboratory Research Hydrologist mailing and physical

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Golden CO 80403 US 303-271-3651 cjl@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998