U.S. Geological Survey 2010 Fgdb raster digital data Portland, OR U.S. Geological Survey https://water.usgs.gov/lookup/getspatial?umpqua_River_Oregon_Coast_Range_PhotoMosaic_1939 J. Rose Wallick Jim E. O'Connor Scott Anderson Mackenzie Keith Charles Cannon John Risley 2010 document Wallick, J.R., O'Connor, J.E., Anderson, Scott, Keith, Mackenzie, Cannon, Charles and Risley, John, 2010, Channel change and bed-material transport, Umpqua River, Oregon: U.S. Geological Survey Open-File Report 2010-1314. https://pubs.usgs.gov/of/2010/1314/ The Umpqua River drains 12,103 square kilometers (4,673 square miles) in southwest Oregon before flowing into the Pacific Ocean at Winchester Bay near the city of Reedsport. In cooperation with the Portland District of the U.S. Army Corps of Engineers (USACE), the USGS evaluated sediment transport and gravel storage along the downstream alluvial reaches of the North and South Umpqua Rivers and the entire mainstem Umpqua River. This includes the lower 46.8 kilometers (29.1 miles) of the North Umpqua River and the lower 122.6 kilometers (76.2 miles) of the South Umpqua River. The Umpqua River gravel transport study involved multiple analyses, including tracking patterns of historical channel change and estimation of a sediment budget. To support these analyses, digital channel maps were produced to depict channel and floodplain conditions along the Umpqua River system from different time periods. GIS layers defining the active channel of the Umpqua River system were developed for three time periods: 1939, 1967, and 2005. For the South Umpqua River and the 19 kilometers (12 miles) of the mainstem Umpqua River downstream from the confluence of the North and South Umpqua Rivers, GIS layers were also developed for the time periods 1994, 2000, and 2009. For this project, the active channel was defined as area typically inundated during annual high flows, and includes the low-flow channel as well as side channels, islands, and channel-flanking gravel bars. The active channel datasets were developed by digitizing from aerial photographs. Aerial photographs from 1939 and 1967 were scanned, rectified, and mosaiced for this project. Digital orthophotographs from 1994, 2000, 2005, and 2009 are publicly available (See metadata for each photograph set for more information on the rectification process and resolution of each dataset). Although our study area encompasses the Umpqua River and lower reaches of the North and South Umpqua Rivers, the extent of each dataset depended upon the underlying aerial photographs; for example, the 1967 photographs extend only as far downstream as floodplain kilometer 7, whereas the 1939 and 2005 datasets extend to the mouth of the Umpqua River at the Pacific Ocean. These data were created to support the evaluation of sediment transport and gravel storage in the alluvial reaches of the Umpqua River system, Oregon. This mapping was used to track changes in channel morphology over time and to measure changes in gravel bar area and channel position. 1939 Ground condition Complete None planned -123.813804 -123.476320 43.685103 43.372170 USGS Thesaurus inlandWaters fluvial geomorphology active channel sediment transport ISO 19115 Topic Category geoscientificInformation inlandWaters environment USGS Metadata Identifier USGS:37831d7a-3562-457a-b259-75172f0be1e4 Geographic Names Information System Umpqua River Oregon Douglas County None The U.S. Geological Survey should be acknowledged as the data source in products derived from these data. U.S. Geological Survey Charles Cannon Hydrologic Technician mailing address

2130 SW 5th Avenue

Portland OR 97201 USA (503) 251-3273 (503) 251-3470 ccannon@usgs.gov (Warning: Although accurate at the time of production, this information may have become obsolete. See the Metadata_Reference_Information section for a current contact.) https://water.usgs.gov/GIS/browse/Umpqua_River_Oregon_Coast_Range_PhotoMosaic_1939.jpg Illustration of data set JPEG Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850 Photographs were georeferenced using National Agriculture Imagery Program (NAIP) one-half meter resolution digital orthophotographs acquired in 2005 Spot checks comparing the 1939 mosaics to National Agriculture Imagery Program digital orthophotographs from 2005 suggest that errors in image alignment are generally less than 14 meters, but may be as large as 36 meters. The data are complete. The 1939 photographs were generally registered with 9 to 13 ground control points and ranged from 4 to 18. Root mean square error was generally between 2.4 and 6.6 meters, and ranged from 0.5 to 13.2 meters. Spot checks comparing the 1939 mosaics to NAIP digital orthophotographs from 2005 suggest that errors in image alignment are generally less than 14 meters, but may be as high as 36 meters. Surdex Corporation, Chesterfield, MO 2006 remote-sensing image aerial photography 20050717 20050804 Ground condition NAIP 2005 Base image for georectification U.S. Army Corps of Engineers Unpublished Material remote-sensing image 10,200 paper 19390517 19390720 Ground condition USACE 1939 Photographs were mosaiced and used to digitize channel features U.S. Geological Survey 2010 vector digital data documentation of aerial photographs from 1939 used for Umpqua River channel mapping vector digital data 1939 Ground condition PhotoData 1939 Documentation of aerial photographs used for mapping of channel features Digital photographs were obtained as 600 dots per inch (DPI), tagged image file format (TIFF) images. The photographs were scanned from print copies at the U.S. Army Corps of Engineers (USACE) Portland District office by U.S. Geological Survey personnel. USACE 2009 2009 The photographs were registered in ArcGIS 9.3, using National Agriculture Imagery Program (NAIP) 0.5 meter resolution digital orthophotographs acquired in 2005 as a base layer. Ground control points were generally building corners or bedrock outcrops. At times, road intersections, distinctive road bends, or individual trees were used as control points. Most control points were selected from within or near the geomorphic floodplain. NAIP 2005 USACE 1939 2009 The photographs were rectified using the Georeferencing Toolbar in ArcMap. Most registered photographs were rectified using a second order polynomial transformation. Photographs with fewer than 8 control points were rectified using a first order polynomial transformation. Four photographs with 8 or more control points were rectified using first order transformations because this gave a better alignment. Georeferenced photographs were resampled to a cell size of 0.5 meter using bilinear interpolation in Georeferencing Toolbar in ArcGIS 9.3. The cell size of 0.5 meter was selected for uniformity, so the rectified images could be mosaiced. 2009 The rectified images were mosaiced into an ESRI file geodatabase raster dataset and were clipped to include only the area within the floodplain where the control points had been concentrated. They were also clipped to our study reaches to improve display efficiency. 2009 The polygons used to clip the photographs were merged into a feature dataset and populated with attributes for the original photograph identifier, date flown, stream discharge, number of ground control points to register the original photograph, transformation order (1939 only) and root mean square error for registration. Some of these polygons were re-digitized due to missing files. 2009 Photo_Data_1939 Raster String 7 Universal Transverse Mercator 10 0.999600 -123.000000 0.000000 500000.000000 0.000000 row and column 0.500000 0.500000 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 U.S. Geological Survey Michael Ierardi IT Specialist mailing address

445 National Center

Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) mierardi@usgs.gov Downloadable Data Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials. The use of firm, trade, or brand names in this report is for identification purposes only and does not constitute endorsement by the U.S. Geological Survey. The names mentioned in this document may be trademarks or registered trademarks of their respective trademark owners. ESRI Geodatabase Feature Class PKZIP compression Winzip 1000 https://water.usgs.gov/GIS/dsdl/ofr2010-1314/Umpqua_River_geomorphology_study.zip None. This dataset is provided by USGS as a public service. 20201117 U.S. Geological Survey Michael Ierardi IT Specialist mailing and physical address

445 National Center

Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) mierardi@usgs.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998