U.S. Geological Survey 2012 vector digital data Open File Report 2011-1160 Reston, VA U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?ofr2011_1160_Hunter_Creek_Wetted_Channel_and_Bar_Features_1965 Jones, Krista L. Wallick, J. Rose O'Connor, Jim E. Keith, Mackenzie K. Mangano, Joseph F. Risley, John C. 2011 U.S. Geological Survey Open-File Report 2011-1160 Reston, Virginia U.S. Geological Survey 41 p. http://pubs.usgs.gov/of/2011/1160/ Hunter Creek is an unregulated system that drains 115 square kilometers of southwestern Oregon before flowing into the Pacific Ocean south of the town of Gold Beach, Oregon. In cooperation with the U.S. Army Corps of Engineers, the U.S. Geological Survey completed a reconnaissance-level assessment of channel condition and bed-material transport relevant to the permitting of in-stream gravel extraction in the lower 12.4 kilometers Hunter Creek. To support these analyses, digital channel maps were produced to depict channel and floodplain conditions along the Hunter Creek system from different time periods. GIS layers defining the wetted channel and bar features and channel centerline of Hunter Creek were developed for four time periods: 1940, 1965, 2005, 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 wetted channel and bar feature datasets were developed by digitizing from aerial photographs. Aerial photographs from 1940 and 1965 were scanned, rectified, and mosaicked for this project (See metadata for each photograph set for more information on the rectification process and resolution of each dataset). Digital orthophotographs from 2005 and 2009 are publicly available. These data were created to support preliminary assessment of channel stability and bed-material transport on Hunter Creek, southwest Oregon. This mapping was used to track changes in channel morphology and planform over time. 1965 ground condition Complete None planned -124.422746 -124.349845 42.391264 42.347541 ISO 19115 Topic Categories inlandWaters Geographic Names Information System (GNIS) sediment transport fluvial geomorphology historical channel change channel stability None Oregon Coast Range Curry County Hunter Creek None The U.S. Geological Survey should be acknowledged as the data source in products derived from these data. U.S. Geological Survey Mackenzie Keith Hydrologist mailing

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Portland OR 97201 US 503-251-3474 mkeith@usgs.gov http://water.usgs.gov/GIS/browse/ofr2011_1160_Hunter_Creek_Wetted_Channel_and_Bar_Features_1965.pdf Illustration of data set Portable Document Format (PDF) None Unclassified None Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcGIS 10.0.5.4400 All wetted channel and bar feature mapping was reviewed by a minimum of three team members to ensure protocol was followed and that mapping was consistent between time periods. Data are topologically correct in ArcGIS. Topolgy rules were used to edit features and verify that polygons were completely enclosed or did not overlap. Data are complete. Wetted channel and bar feature mapping was reviewed by a minimum of three team members to ensure protocol was followed and that mapping was consistent between time periods. Digitizing was done at a scale of 1:2,000. All bar and wetted channel features greater than 200 square meters were digitized. Because polygons were split for assignment to study reaches, some may represent areas less than 200 square meters. Best judgment was used to delineate feature boundaries where obscured by vegetation or shadows. The 1940 and 1965 aerial photographs were georeferenced with a minimum of 15 ground-control points concentrated near the main channel and rectified with a second-order polynomial transformation. The total root mean square error values of the rectified photographs from 1940 and 1965 indicated that horizontal-position uncertainties associated with the georectification process ranged from 2.9 to 5.9 meters, but averaged 5.8 meters for the 1940 photographs and 3.7 meters for the 1965 photographs. Digitizing was done at a scale of 1:2,000. Wallick, J. Rose Jim E. O'Connor Anderson, Scott Keith, Mackenzie Cannon, Charles Risley, John C. 2011 U.S. Geological Survey Scientific Investigations Report 2011-5041 Reston, Virginia U.S. Geological Survey 112 p. http://pubs.usgs.gov/sir/2011/5041/ online 1940 ground condition Wallick, 2011 The report describes detailed methods used in photograph rectification and mosaicking, as well as channel centerline, wetted channel, and bar feature delineation. U.S. Department of Agriculture, Soil Conservation Service unknown remote sensing image 20000 aerial photograph 19650622 19650813 ground condition SCS-USDA 1965 The aerial photographs provided a base layer from which channel features were delineated. The 1940 and 1965 photographs were georeferenced with a minimum of 15 ground-control points concentrated near the main channel and rectified with a second-order polynomial transformation. The total root mean square error values of the rectified photographs from 1940 and 1965 indicated that horizontal-position uncertainties associated with the georectification process ranged from 2.9 to 5.9 meters, but averaged 5.8 meters for the 1940 photographs and 3.7 meters for the 1965 photographs. Since control points were concentrated near the channel, error associated with mapped features along channel corridor should be lower than the total root mean square error values for the entire photograph. 2011 An ESRI geodatabase topology rule of “must not overlap" was used for editing. This required that no bar feauture polygons encountered the same space. 2011 Bars visible in aerial photographs were outlined using a polygon feature class. The outline was drawn to represent the feature as seen at a scale of 1:2,000. All bar features within the study area greater than 200 square meters were digitzed. 2011 Wetted channel edges visible in aerial photographs were outlined using a polyline feature class. Line ends were snapped to existing bar polygons. 2011 Delineation of bars, channel centerlines, and wetted-channel edges was verified by project team members to ensure consistent delineation of features among years and throughout the study area and consistency with the delineation protocol of Wallick and others (2011). 2011 The bar polygon feature class was converted to points using the “Feature To Point” tool in ArcToolbox. 2011 The bar polygon and wetted channel polyline feature classes were converted to polygons using the “Features To Polygon” tool in ArcToolbox. The bar point feature class was used to label those polygons with the correct attribute information. 2011 The polygons were intersected with a polygon feature class of the study reaches to limit mapping extent and assign reach names to the polygons using the "Intersect" tool in ArcToolbox. 2011 The wetted channel feature polygons were manually labeled in the attribute table. 2011 Vector GT-polygon composed of chains 73 Transverse Mercator 0.9996 -123.0 0.0 500000.0 0.0 coordinate pair 0.0001 0.0001 Meter D North American 1983 GRS 1980 6378137.0 298.257222101 ofr2011_1160_Hunter_Creek_Wetted_Channel_and_Bar_Features_1965 Hunter Creek bars and wetted channel U.S. Geological Survey OBJECTID Internal feature number ESRI Sequential unique whole numbers that are automatically generated SHAPE Feature geometry ESRI Coordinates defining the features River Mainstem channel that contains the feature object U.S. Geological Survey Hunter Creek Mainstem Hunter Creek between river kilometer 12.4 and 0.0 U.S. Geological Survey Other Active channel in the study area that is not on the mainstem Hunter Creek U.S. Geological Survey Reach_ID Study reach that contains the feature object U.S. Geological Survey Upper Hunter Creek River kilometer 12.4 to river kilometer 6.0 along Hunter Creek U.S. Geological Survey Lower Hunter Creek River kilometer 6.0 to river kilometer 0.0 along Hunter Creek U.S. Geological Survey Feature Geomorphic classification of channel features U.S. Geological Survey Bar Lateral and medial bars composed of gravel and finer sediment within the active channel and possibly mudflats and marshes in tidal reaches that were exposed and above the water surface during aerial photograph acquisition. While most of the mapped bars had little to no vegetation, some bars included small areas that were partly or wholly covered by grasses, shrubs, and (to a lesser extent) mature trees. U.S. Geological Survey Wetted channel Area of the active channel inundated by water at the time of aerial photograph collection U.S. Geological Survey NA NA (not applicable) may include ponded water or bedrock within the active channel study area measuring greater than 200 square meters U.S. Geological Survey SHAPE_Length Length of feature in meters ESRI Positive real numbers that are automatically generated SHAPE_Area Area of feature in meters squared ESRI Positive real numbers that are automatically generated U.S. Geological Survey Ask USGS -- Water Webserver Team mailing

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Reston VA 20192 US 1-888-275-8747 (1-888-ASK-USGS) http://water.usgs.gov/user_feedback_form.html 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 ArcGIS 10 PKZIP compression Winzip http://water.usgs.gov/GIS/dsdl/ofr2011_1160_Hunter_Creek.zip None. This dataset is provided by USGS as a public service. 20120821 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing

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Reston VA 20192 US 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ofr2011_1160_Hunter_creek_wetted_Channel_and Bar_Features_1965 FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time