USGS Groundwater Information: Branch of Geophysics
FO-DTS > Fish Creek
In 2006 the USGS Office of Ground Water, Branch of Geophysics (OGW BG) conducted a fiber-optic distributed temperature sensing (FO-DTS) technology demonstration and evaluation project, with support from the USGS Ground-Water Resources Program. In July 2006, OGW BG supported the USGS Wyoming Water Science Center's (WSC) use of FO-DTS to identify specific areas of ground-water discharge to a stream. Use of FO-DTS was part of an ongoing study in Fish Creek, conducted in cooperation with the Teton Conservation District.
In this FO-DTS pilot study, the FO-DTS cable was deployed along a 1-kilometer reach of Fish Creek in Jackson Hole, Wyoming. Measurements were made at approximately one-meter intervals along the cable over a continuous twenty-seven hour period. During the project, a variety of data sets were collected in addition to FO-DTS, including discharge measurements, ground-water levels, and discrete temperature measurements along the cable and in nearby monitoring wells. Previous research conducted by the Wyoming WSC as part of a USGS study to determine local ground-water and surface-water interactions in and near Fish Creek provided important background information. FO-DTS data were used to identify reaches with lower temperature and less temperature fluctuation for follow-up direct temperature measurements.
The FO-DTS data indicate that there was not significant ground-water discharge in the area evaluated during the time of the study. Small areas of temperature anomalies in the data are interpreted to be a result of ground-water input to the stream. The data also indicate a temperature difference between the two sides of the creek in one area.
This technology demonstration and evaluation project showed that FO-DTS can be used to help characterize ground-water and surface-water interactions in a stream environment by providing valuable, cost-effective reconnaissance information.
For more information about the FO-DTS project, contact Fred Day-Lewis (firstname.lastname@example.org or 860-487-7402 x21) at the OGW, Branch of Geophysics
For more information on the Fish Creek investigation, contact Cheryl Eddy Miller (email@example.com or 307-775-9167) or Jerrod Wheeler (firstname.lastname@example.org or 307-856-3771 x12) at the USGS Wyoming Water Science Center.
This OGW BG project was conducted with support from the USGS Ground-Water Resources Program.
Wheeler, J.D., Eddy-Miller, C.A., Constantz, J.E., and Leemon, D.J., Determination of Ground-Water and Surface-Water Interactions Using Multiple Methods, In and Near Fish Creek, Jackson Hole, Wyoming: Saint Louis, Missouri, National Surface-Water Conference and Hydroacoustics Workshop, April 2-6, 2007. (A poster was also presented at the conference.)