Turbidity and Other Sediment Surrogates Workshop
April 30 - May 2, 2002
Silver Legacy Hotel, Reno, Nevada
Sponsored by the Subcommittee on Sedimentation
Organized by G. Douglas Glysson
and John R. Gray
U.S. Geological Survey, Reston, Virginia
Proceedings of the Federal Interagency workshop on turbidity and other sediment surrogates, April 30-May 2, 2002, Reno, NV, edited by J.R. Gray and G.D. Glysson: U.S. Geological Survey Circular 1250, sponsored by the Subcommittee on Sedimentation. To access the extended abstracts for this report, visit this url: http://water.usgs.gov/osw/techniques/TSS/listofabstracts.htm
Synopsis of outcomes from the Federal Interagency workshop on turbidity and other sediment surrogates, by J.R. Gray and G.D. Glysson: Proceedings of the Virginia Water Research Conference, Virginia Tech, Blacksburg, October 8-10, 2003.
Use of turbidity and other technologies to infer suspended-sediment
concentrations in surface water has increased substantially in
the last decade -- as have questions and concerns regarding the
quality and reliability of these data and derivative estimates
of suspended-sediment concentrations and loads.
The Workshop was conceived to bring together a diverse group of those
with interests in turbidity and other surrogates for suspended
sediment. Products from the workshop will first appear at this
web site by June 2002. The goals of the workshop are as
- Establish an agreed-upon definition for turbidity.
- Establish an agreed-upon measurement(s) (lab and field) for the
defining the optical properties of water for both
engineering and biological applications.
- Define the method of operation of a "turbidity" meter to collect
data to estimate suspended-sediment concentration (SSC) in a
stream, and the ancillary data needed to interpret these
- Define method to convert "turbidity" readings into SSC and determine
approximate variance in results.
- Define where and under what conditions an adequate correlation
can be obtained between turbidity meter measurements and SSC.
- Define the state of art of all primary methods for collection of
surrogates for SSC.
- Define for all technologies discussed approximate
criteria/conditions under which each technology will and
will not work.
- Define variability between measurements from turbidity meters calibrated to the same
standards and measuring a variety of natural
Venue -- Silver Legacy Hotel
--with links to abstracts
Agendas for Breakout Sessions
Calibration and Blind Sediment Sample
Links Associated With Turbidity and Other
Surrogates for Fluvial Sediment
List of Abstracts with Links
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