The data set includes temperature data from the base of the water column along the sediment interface of the East River near Crested Butte Colorado, USA, in support of ongoing study regarding groundwater/surface water exchange. The data were collected from 08/09/2016 to 08/31/2016 using a fiber-optic distributed temperature sensing system that has 1.01 m spatial resolution along the linear fiber-optic cable. During data analysis, the original 10 min measurments were averaged (arithmetic mean) for the entire period to potentially indicate colder groundwater inflows. Additionally, the standard devation for the entire measurement period for each distance along the cable was calculated to indicate buffered zones (reduced temperature standard deviation) that might result from upward water flow through the streambed.

The data set includes temperature data from the base of the water column along the sediment interface of Ellerbe Creek, Durham, North Carolina, USA, in support of a study regarding groundwater/surface water exchange. The data were collected from 07/18/2017 to 07/26/2017 using a fiber-optic distributed temperature sensing system that has 1.01 m spatial resolution along the linear fiber-optic cable. During data analysis, the original 15 min measurments were averaged (arithmetic mean) for the entire period to potentially indicate colder groundwater inflows.

This child item contains fiber-optic distributed temperature sensing (FO-DTS) data collected along the streambed interface of two streams named Cement Creek and California Gulch Creek, as well as the Animas River, located near Silverton Colorado. The FO-DTS method utilizes the temperature-dependent backscatter of light pulses emitted along armored fiber-optic cables to evaluate temperature at discrete linear sampling locations. For these deployments a Salixa XT-DTS control unit (Salixa Ltd, Hertfordshire, UK) was used, and measurements were made over several day increments at 0.508 m linear resolution along the streambed interface. Specific locations for collected data are located within the data files, and additional details are contained in the ‘readme’ files within each zip data directory.

Natural heat is used as a tracer for a variety of physical hydrogeological process, including zones of preferential exchange between groundwater and surface water. Several types of instruments are used to measure the temperature of surface water and saturated sediments. This data release presents the results of fiber-optic distributed temperature sensing (FO-DTS) using temperature sensitive armored cables deployed along the riverbed interface. Data were collected over time (08/06/2015 to 09/24/2015) at 1.01 m spatial resolution along a reach of the Little Wind River, WY, USA. This study reach included an upstream shallow side channel where the cable was exposed to air over several short segments, and a downstream deeper section where the cable was generally installed within 5 m of the bank. The FO-DTS system was setup to collect a temperature measurement along this cable every 40 min; however, solar power to the control unit failed intermittently during the deployment period, especially later in the record, so the data are of inconsistent timestep. The processed data included in this release have been clipped to a cable length and time period of specific interest, as described in the local readme files.

Fiber-optic distributed temperature sensing (FO-DTS) cables were deployed along the sediment/water interface to map high spatial resolution temperature variations along the streambed. These variations are used to detect zones of groundwater discharge. Data are to be used in conjunction with electromagnetic imaging (EMI) and ground penetrating radar (GPR) data. The combined dataset represents point in time mapping of preferential groundwater discharge points (FO-DTS), and the bed structure that controls where these points are located (GPR, EMI).

The data were collected summer, 2016, 2017, and 2018. Continuous temperature loggers were deployed along the Pend Oreille River between Albeni Falls Dam and the Box Canyon Dam. Loggers were checked every 1-2 weeks throughout the summer.

This child page contains fiber-optic distributed temperature sensing data collected from March 13-March 16, 2018 at the North Chevalier Field Disposal Area (Site 11) at Naval Air Station Pensacola in Pensacola Bay in Florida. A fiber-optic cable was run on the bottom of the bay parallel to the shoreline along an approximate 370-meter reach. The cable was installed near the shoreline just far enough offshore that most of it remained submerged at low tide. At the end of the reach, the cable was doubled back and installed parallel to, and approximately one meter offshore, of the first run. At the end of the second run, the cable was run ashore and connected to an Oryx Distributed Temperature Sensing (DTS) system. Near the DTS, several coils of the fiber optic cable were submerged in an ice slurry for the duration of the survey as a quality control measure. Temperature was measured every 15 minutes at one-meter intervals along the length of the cable. The temperature data, which are reported by the instrument as linear fiber distance, were georeferenced using a handheld Global Positioning System (GPS) for the purpose of relating known points in space to the distance along the fiber-optic cable. Additional details of the temperature survey can be found using the link to the companion U.S. Geological Survey (USGS) Scientific Investigations Report.

Stream temperature data and streamflow data from headwater streams in the upper Snake River basin, Wyoming and upper Yellowstone River basin and Flathead River basin in Montana. These datasets were assembled to assess how stream temperature and streamflow in headwater streams deviates from downstream gages in order to better understand tools to estimate streamflow at a variety of temporal scales. The datasets range from 2011 through 2023 and were collected using standard stage-discharge relationships and commonly used sensors. Data were collected by the U.S. Geological Survey and/or affiliated field crews with support from the U.S. Geological Survey.

Heat is used as a tracer for a variety of physical hydrogeological process. Several types of instruments are used to measure the temperature of surface water and saturated sediments. In the Quashnet River we have been using methods that include: infrared, individual logging thermistors, and fiber-optic distributed temperature sensing. The latter type of data (FO_DTS) are described and presented here.

The U.S. Geological Survey developed this dataset as part of the Colorado Front Range Infrastructure Resources Project (FRIRP). One goal of the FRIRP was to provide information on the availability of those hydrogeologic resources that are either critical to maintaining infrastructure along the northern Front Range or that may become less available because of urban expansion in the northern Front Range. This dataset extends from the Boulder-Jefferson County line on the south, to the middle of Larimer and Weld Counties on the North. On the west, this dataset is bounded by the approximate mountain front of the Front Range of the Rocky Mountains; on the east, by an arbitrary north-south line extending through a point about 6.5 kilometers east of Greeley. This digital geospatial dataset consists of digitized water-level-elevation contours.