Data from a flume investigation using Fiber Optic Distributed Temperature Sensing (FO-DTS), U.S. Geological Survey Geomorphology and Sediment Transport Laboratory, Golden, Colorado, fall 2019
Dates
Start Date
2019-11-17
End Date
2019-11-23
Publication Date
2021-10-05
Citation
Kinzel, P.J., 2021, Data from a flume investigation using Fiber Optic Distributed Temperature Sensing (FO-DTS), U.S. Geological Survey Geomorphology and Sediment Transport Laboratory, Golden, Colorado, fall 2019: U.S. Geological Survey data release, https://doi.org/10.5066/P9O89U2P.
Summary
Evaluating technologies and approaches to identify the movement of fine sediment over coarser substrate has implications for monitoring the condition of habitat restoration sites. This goal motivated testing the efficacy of Fiber Optic Distributed Temperature Sensing (FO-DTS) as a technique for detecting the migration of sand bedforms over coarser bed material. Experiments were conducted in a laboratory flume at the USGS Geomorphology and Sediment Transport Laboratory (GSTL) in Golden, Colorado. An approximately 20-meter length of fiber optic cable was placed in the flume. The first 5 meter segment of cable was buried in approximately 5 centimeters of gravel substrate and extended from the upstream (top) to the downstream (bottom) [...]
Summary
Evaluating technologies and approaches to identify the movement of fine sediment over coarser substrate has implications for monitoring the condition of habitat restoration sites. This goal motivated testing the efficacy of Fiber Optic Distributed Temperature Sensing (FO-DTS) as a technique for detecting the migration of sand bedforms over coarser bed material. Experiments were conducted in a laboratory flume at the USGS Geomorphology and Sediment Transport Laboratory (GSTL) in Golden, Colorado. An approximately 20-meter length of fiber optic cable was placed in the flume. The first 5 meter segment of cable was buried in approximately 5 centimeters of gravel substrate and extended from the upstream (top) to the downstream (bottom) of the flume. The next 10 meter segment of cable was placed on the gravel surface and extended from the bottom of the flume to the top of the flume and back to the bottom of the flume. The final 5 meter segment of cable was buried in the gravel and extended from the bottom of the flume to the top of the flume. The gravel had a median grain size of approximately 10 millimeters. The sand, introduced at the upstream end of the flume using a sediment feeder, had a median grain size of 0.6 millimeters. Water in the tail tank was heated for 12 hours and then the heater was shut off for 12 hours. Water from the tank was circulated through the flume during this cycle and a temperature profile was recorded with a Silixa XT-DTS along the entire length of the FO cable at 0.25 meter increments once every minute. This data set contains the results of 6 experiments conducted at GSTL during the fall of 2019. The first experiment, performed on November 17, 2019, can be considered a control wherein the heater was cycled for 12 hours without upstream sediment supply. In the subsequent experiments the heater was cycled for 12 hours and sediment was added at the upstream end of the flume over a period of four hours. The downstream advance of the bedform was monitored by the FO-DTS which was used to detect regions of thermal dampening caused by the overlying sand.
Click on title to download individual files attached to this item.
FO_DTS_investigation_Fall_2019.xml “metadata” Original FGDC Metadata
View
17.79 KB
application/fgdc+xml
11_18_19.JPG “Photograph of a sand bedform covering fiber optic cable and gravel substrate”
2.21 MB
image/jpeg
GSTL_2019_distributed_data_11_17_19.csv “FO-DTS time series 11/17/19”
789.63 KB
text/csv
GSTL_2019_distributed_data_11_18_19.csv “FO-DTS time series 11/18/19”
789.71 KB
text/csv
GSTL_2019_distributed_data_11_19_19.csv “FO-DTS time series 11/19/19”
790.02 KB
text/csv
GSTL_2019_distributed_data_11_20_19.csv “FO-DTS time series 11/20/19”
789.54 KB
text/csv
GSTL_2019_distributed_data_11_21_19.csv “FO-DTS time series 11/21/19”
789.65 KB
text/csv
GSTL_2019_distributed_data_11_22_19.csv “FO-DTS time series 11/22/19”
789.81 KB
text/csv
Material Request Instructions
For any questions regarding these data, please contact: Paul Kinzel - pjkinzel@usgs.gov, 303-278-7941
Geomorphology and Sediment Transport Laboratory
United States Geological Survey
4620 Technology Drive, Suite 400, Golden, CO 80403
Purpose
The efficacy of Fiber Optic Distributed Temperature Sensing (DTS) as a technique for identifying the movement of fine sediment over coarser substrate was investigated in a laboratory flume. Evaluating technologies and approaches to detect the movement and infiltration of fines into and over coarser materials has implications for monitoring the condition of habitat restoration sites.
Rights
Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Preview Image
Photograph of a sand bedform covering fiber optic cable and gravel substrate