Paul J. Kinzel Carl J Legleiter 20240124 raster digital data https://doi.org/10.5066/P9D7POZV A Bell 407 helicopter with a gyro-stabilized gimbal was used to collect aerial videos of Upper Colorado River Water Science Basin (IWS) riverine study sites in 2022. Videos were collected using both natural color and thermal infrared cameras. These videos were used to determine the feasibility of estimating river surface velocity using aerial imagery. Photogrammetry techniques were used with the natural color video images to produce an orthomosaic map of the study reach. Helicopter-based videos were collected to support a USGS Next Generation Water Observing System (NGWOS) research project. The project aims to evaluate the potential to estimate river surface flow velocities from aerial imagery. 20220613 ground condition Complete None planned -106.04320 -105.98230 40.11090 40.09210 ISO 19115 Topic Category environment USGS Thesaurus remote sensing streamflow USGS Metadata Identifier USGS:65aed8d3d34ef34c3506d762 None Colorado River None. Please see 'Distribution Info' for details. None. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. Paul J Kinzel U.S. Geological Survey, WATER Hydrologist mailing address

4620 Technology Dr

Golden CO 80403 US 303-278-7941 303-279-4165 pjkinzel@usgs.gov No formal attribute accuracy tests were conducted. 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. NA NA A Bell 407 helicopter with a gyro-stabilized gimbal was used to collect aerial videos of Upper Colorado River Integrated Water Science basin riverine study sites. Two flights were conducted on 6/13/22. 20220613 Videos were uploaded to ScienceBase 20220310 Video images from 6/13/22 were processed in Correlator 3D software (V 9.2) to produce an orthomosaic map. 20230410 Orthomosaic map tiles were compressed in a zip file and uploaded to ScienceBase. 20230522 Raster Pixel 8448 22784 Universal Transverse Mercator 13 0.9996 -105 0 500000 0 row and column 0.33 0.33 meters North American Datum of 1983 (NAD 83) Geodetic Reference System 1980 6378137.000000 298.257222 UCOL_orthomosaic_map.tif 3 band raster geospatial data file. Producer Defined Red Unique red numeric values contained in each raster cell. Producer Defined 36 255 Green Unique green numeric values contained in each raster cell. Producer Defined 62 255 Blue Unique blue numeric values contained in each raster cell. Producer Defined 32 255 GS ScienceBase U.S. Geological Survey mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 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 for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Digital Data https://doi.org/10.5066/P9D7POZV None 20240124 Paul J Kinzel U.S. Geological Survey, WATER Hydrologist mailing address

4620 Technology Dr

Golden CO 80403 US 303-278-7941 303-279-4165 pjkinzel@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998