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<br />Notes: In this table.:l number with an e)lponent (for example. A )lIO.b) is expressed in the form Ae-b. Because of differences in loboratory procedures. some differences exist among <br />the daw presented in thIs table. For the Gmnd Canyon gage P-61 samples. 122-mile eddy 0-74 samples. and National Canyon gage P-61 subset samples. the sand fraction is defined <br />:lS all c;eulmt:nt with a sellling velocity greater than that for 0.0625 mm sediment with a Corey shape foetor of 0.7 and Powers index oCtO; platy material larger than 0.0625 mm with <br />lower settling velocities is grouped with the silt and clay. For the above LCR gage 0-77 samples. Grand C~myon gage 0-77 samples, and National Canyon P-61 samples. the sand <br />fraclion IS detined as all scdiment retained on n 0.0625 mm sieve. and the silt and clay fmction is defined llS all sediment that passes through a 0.0625 mm sieve. <br />. I:kcolUse of lIitlen:ncec; sampler design. the concentrations of suspended sand measured with a 0-77 sJmpler are expected to be lower than those measured with either a P-61 or a <br />D.74 sampler. nnd (he grnin-size distributions of suspended sand measured with a 0.77 snmpler are expected to be finer than those measured with either a P-61 or aD- 74 samph:r. <br />~ n In this case refers to not the number of depth-integrtlted samples. but rather to the number of venicals included in the spatial average. The depth-integrated mean concentmrion of <br />CilCh size class in each venical at National Canyon was determined by depth-integrating the point-samples D.t each vertical D.nd dividing by the loc<:ll flow depth. <br />I The samples in the P-61 subset <:Ire the only sJmples from the National Canyon gage that were analyzed for sD.nd grain size; they were collected at stations 245 (the mid-channel <br />stalion) and ~45 (a neor-bank stalion). These grain-size distributions were analyzed in the same manner as those for the Grand Cnnyon gage P-61 and I 22-mile eddy 0-74 samples. <br /> <br />-i <br />o <br />"'0 <br />"'0 <br />Z <br />Cl <br />m <br />-i <br />:>> <br />;- <br /> <br />00 <br />"" <br />