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4) Gaging streamflow - Gaging station procedures are found in Buchanan and Somers (1969), <br />Buchanan and Somers (1968), and Carter and Davidian (1968). These procedures will be <br />followed. <br />5) Suspended sediment concentration - Fine-grained sediment will be monitored using Optical <br />Backscatter (OBS) sensors connected to a CR21 data collection platform. <br />Calibration - a correlation between OBS readings and suspended-sediment concentration needs <br />to be defined. Suspended sediment concentrations are obtained for various streamflows along <br />with an OBS value. Suspended sediment concentration is obtained using the equal width <br />methods as defined in Edwards and Glysson (1999, p.48). <br />Sensor maintenance - sensor must be cleaned once a month to prevent and reduce biological <br />fouling. Readings shall be collected before and after cleaning to establish changes from fouling <br />Data Analysis <br />Data from the topographic survey will be exported from the surveying software (Trimble Survey <br />Office) and summarized as the distance from the bank and the elevation at every transect. <br />Graphs can be made using a plotting software package (Microsoft Excel) of the distance versus <br />elevation to reveal the outline of the bottom of each cross section. From the bed sediment <br />sampling, each transect will have 15 samples analyzed and lab statistics will be returned for <br />each. Statistics include d16, dso, and d84. Information gathered from the stream gaging stations <br />will result in discharge data that can be summarized to the daily measures. <br />Statistical models will be used to summarize sediment and channel measurements for each of the <br />three reaches. <br />7