Use of Sediment Rating Curves and Optical Backscatter Data to Characterize Sediment Transport in the Upper Yuba River Watershed, California, 2001–03
By Jennifer A. Curtis1, Lorraine E. Flint1, Charles N. Alpers1, Scott A. Wright2 and Noah P. Snyder3
U.S. Geological Survey Scientific Investigations Report  2005–5246 , published 2006.
Table 7
Annual suspended-sediment discharge for gaging stations on the Middle Yuba (MYG) and South Yuba (SYG) Rivers in the upper Yuba River watershed, California.
[GCLAS, Graphical Constituent Loading Analysis System, used for U.S. Geological Survey annual data reports (Rockwell and others, 2001; Smithson and others, 2002; Friebel and others, 2003). Percent difference is the difference between the GCLAS and rating curve estimates divided by the GCLAS estimate. Rating curve regression equations listed in table 4 for sample periods]
Water yearSampling periodAnnual suspended-sediment dischargePercent difference
  Estimated using GCLAS (tons)Estimated using rating curves (tons) 
South Yuba River  (SYG, Station ID 11417500)
2001     11/08/00–09/30/011,500     690     54     
2002     10/01/01-06/30/023,400     4,700     -38     
2003     11/01/02-05/31/027,700     7,500     3     
Middle Yuba River (MYG, Station ID 11410000)
2001     11/08/00–09/30/01140     140     0     
2002     10/01/01-06/30/02480     890     -85     
2003     11/01/02-05/31/022,400     1,900     21