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<br /> <br />IV <br /> <br />SYMBOLS <br /> <br />a coefficient in relation of width to discharge <br />Ad drainage area <br />b exponent in relation of width to discharge <br />c coefficient in relation of depth to discharge <br />d mean depth defined as ratio of cross-sectional area <br />to width <br />DI size of sediment particle, expressed as median size <br />j exponent in relation of depth to discharge <br />j exponent in relation of suspended-sediment load to <br />discharge <br />k numerical coefficient having a specific but unde- <br />termined value <br />I stream length <br />L suspended-sediment load in units of weight per unit <br />of time <br />m exponent in relation of velocity to discharge <br /> <br />..- <br /> <br />n' a roughness parameter <br />N number of streams in a basin <br />o stream order <br />p coefficient in relation of suspended load to discharge <br />Q discharge in volume per unit of time <br />Q,.3 mean annual flood (equaled or exceeded on the <br />average once every 2.3 years) <br />r a numerical coefficient <br />8 stream slope <br />a numerical coefficient <br />v mean velocity defined as quotient of discharge <br />divided by cross-sectional area <br />w mean width of water surface <br />y exponent in relation of roughness parameter to <br />discharge <br />z exponent in relation of slope to discharge <br />