Turbidity and Suspended Sediment Concentration Data from a Laboratory Mixing Tank Experiment 2023 (ver. 1.1, November 2024)
Dates
Publication Date
2023-12-21
Start Date
2022-12-22
End Date
2023-08-11
Revision
2024-11-05
Citation
Ely, C.P., Marineau, M.D., and Schenk, L.N., 2023, Turbidity and Suspended Sediment Concentration Data from a Laboratory Mixing Tank Experiment 2023 (ver. 1.1, November 2024): U.S. Geological Survey data release, https://doi.org/10.5066/P9A213H6.
Summary
Four dams on the Klamath River that created Iron Gate Reservoir and Copco Lake in Siskiyou County, California, and John C. Boyle Reservoir, in Klamath County, Oregon, are scheduled for removal in early 2024. The U.S. Geological Survey (USGS) will deploy high-range turbidity sensors to compute continuous suspended sediment concentration (SSC) before, during, and following the scheduled dam removals. SSCs in the Klamath River are expected to be extreme during the dam removal process because of mobilization of fine-grained sediments that settled in the upstream reservoirs. Prior to dam removal, extreme SSC values were rare and only likely to occur during an extreme event. The inability to observe extreme SSC values prior to dam removal [...]
Summary
Four dams on the Klamath River that created Iron Gate Reservoir and Copco Lake in Siskiyou County, California, and John C. Boyle Reservoir, in Klamath County, Oregon, are scheduled for removal in early 2024. The U.S. Geological Survey (USGS) will deploy high-range turbidity sensors to compute continuous suspended sediment concentration (SSC) before, during, and following the scheduled dam removals. SSCs in the Klamath River are expected to be extreme during the dam removal process because of mobilization of fine-grained sediments that settled in the upstream reservoirs. Prior to dam removal, extreme SSC values were rare and only likely to occur during an extreme event. The inability to observe extreme SSC values prior to dam removal makes it difficult to predict them after dam removal. Therefore, the USGS did controlled laboratory experiments to simulate extreme SSC values to establish the upper limits of the turbidity-SSC rating being developed to estimate SSC and transport along the Klamath River during and after dam removals. The experiments used multiple field deployed Observator Analite NEP-5000-180 backscattering turbidity sensors in custom observing ranges up to 10,000 SDVB (styrene divinylbenzene beads) Backscatter Units (SBU), a Sequoia Scientific LISST-ABS acoustic backscattering SSC sensor with an upper observing limit of 30 g/L, and a YSI EXO2 with EXO turbidity sensor with an upper observing limit of 4,000 Formazin Nephelometric Units (FNU). Prior to the full-scale tank experiments, four experiments were done using small-scale bench-top equipment to test the effect of deionized water, tap water, and native water on the turbidity-SSC relation. Four experiments were done using a domed-bottom large mixing tank with a range of SSC values from 0 milligrams per Liter (mg/L) up to 29129 mg/L.
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Turbidity and Suspended Sediment Concentration Data from a Laboratory Mixing Tank Experiment 2023 (ver. 1.1, November 2024)_metadata.xml Original FGDC Metadata
View
54.06 KB
application/fgdc+xml
NEP_5000_Calibrations.csv
436 Bytes
text/csv
ErlenmeyerExperiment_Data.csv
2.38 KB
text/csv
YSI_EXO2_Calibration.csv
210 Bytes
text/csv
LISST_ABS_data.csv
3.14 MB
text/csv
NEP5000_data.csv
77.23 KB
text/csv
YSI_EXO2_data.csv
3.31 MB
text/csv
Analyzed_Sample_Data.csv
4.51 KB
text/csv
GrainSizeDistribution_Data.csv
1.75 KB
text/csv
version_history.txt
1.33 KB
text/plain
Purpose
These data were collected to establish the turbidity-suspended sediment relation for Analite Observator NEP-5000 180 degree backscatter sensors and to make qualitative comparisons to other turbidity sensors.