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Monthly and annual suspended-sediment loads in the Brazos River at Richmond, Texas, 1966-86 water years

Water-Resources Investigations Report 88-4216

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Abstract

Sampling to determine suspended-sediment concentrations at Brazos River at Richmond, Texas, station 08114000 began in January 1966 and ended in September 1986. Depth-integrated samples were collected in all flow conditions. The records for this station are considered good. The mean monthly suspended-sediment load in the Brazos River at Richmond ranged from 2,500 to 91,000 tons during the period of record. The annual suspended-sediment load at Brazos River at Richmond ranged from 404,500 to 30,800,000 tons and averaged about 10,900 ,000 tons. The minimum annual load of 404,500 tons occurred during the 1984 water year, and the maximum annual load of 30 ,800,000 tons occurred during the 1968 water year. Suspended-sediment load and discharge varied throughout the period of study. A double-mass curve indicated that the relation between discharge and sediment load remained constant. No breaks were noted, indicating that no change occurred in the relation. The data collected annually during the study were used to define a regression model. The model was found to be a good predictor of annual suspended-sediment load by using annual streamflow as the independent variable. (USGS)

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Monthly and annual suspended-sediment loads in the Brazos River at Richmond, Texas, 1966-86 water years
Series title:
Water-Resources Investigations Report
Series number:
88-4216
Edition:
-
Year Published:
1989
Language:
ENGLISH
Publisher:
Dept. of the Interior, U.S. Geological Survey ; Books and Open-File Reports [distributor],
Description:
iv, 20 p. :ill., maps ;28 cm.