4) Site information and photos

Seventeen streamflow-gaging stations, operated by the U.S. Geological Survey and distributed across the Ouachita Mountains of Arkansas and Oklahoma were selected for analysis. Regional hydraulic geometry curves relating drainage area to bankfull dimensions: cross-sectional area, top width, mean depth, and discharge, were developed from data collected at the selected streamflow-gaging stations. Bed material sampling was conducted to obtain information on the particle-size distributions of the streambed materials and to determine the shapes of the individual particles comprising the streambeds. The stream reaches at each streamflow-gaging station were classified using the Rosgen level II stream type (Rosgen, 1996) based on the average of stream channel metrics collected from site cross-sections and profiles. Descriptions of selected stream reaches are presented in the attached Comma-Separated Values (CSV) file. Descriptions for each site include the reach beginning and ending locations, the geology and soils at the reach, the land cover within the watershed, the streambed substrate type from the riffle cross sections within the reach, the entrenchment ratio, width-to-depth ratio, and sinuosity for the reach, the observed reach morphology, and the stream-type classification for the reach. Photos of selected stream reaches were obtained to document site conditions at the time of data collection. Approximately 350 photos are archived here in 15 zipped files, one for each study site. Each study site’s zipped file contains photo JPG files for that site and a CSV file listing the following photo attributes; 1) the photo file name, 2) the USGS streamflow gaging station number, 3) the USGS streamflow gaging station name, 4) the date the photo was taken, and 5) a description of the photo view. Note: Unfortunately, over the decade since much of the field work for this study was completed, some photos have been lost; including all of the photos for two sites (Rock Creek near Dierks, Ark and Alum Fork Saline River near Reform, Ark). References Rosgen, D.L., 1996, Applied river morphology: Pagosa Springs, Colorado, Wildland Hydrology Books, 390 p. This child item contains site information and photos for the 17 study sites including:
1) Summary table of site information (CSV file). 2) Table of descriptions of selected stream-reaches (CSV file). 3) Zipped file of photos from selected stream-reaches (JPG and CSV files).