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EGS Collab Experiment 2: Distributed Fiber Optic Temperature Data (DTS)

Published by Lawrence Berkeley National Laboratory | Department of Energy | Catalog Last Checked: July 30, 2026 at 08:45 PM | Dataset Last Updated: July 29, 2026 at 08:54 PM
The EGS Collab Experiment took place at the Sanford Underground Research Facility at the Homestake gold mine in Lead, SD, USA. Distributed fiber optic sensing temperature data is included in this dataset for this experiment. A single loop of custom fiber package was grouted into the four monitoring boreholes that bracketed the experiment volume. This fiber package contained two multi-mode fibers and four single-mode fibers. These fibers were connected to an array of fiber optic interrogator units, each targeting a different measurement. The distributed temperature system (DTS) consisted of a Silixa XT-DTS unit, connected to both ends of one of the two multi-mode fibers. This system measured absolute temperature along the entire length of fiber for the duration of the experiment at a sampling rate of approximately 10 minutes. This dataset includes both raw data in XML format from the XT-DTS, as well as a processed dataset with the sections of data pertaining only to the boreholes are extracted. The included report provides all of the relevant details necessary for users to process and interpret the data for themselves. Please read this accompanying report. If, after reading it, there are still outstanding questions, please do not hesitate to contact us. Happy processing.

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Complete Metadata
@type dcat:Dataset
accessLevel public
bureauCode 
[
  "019:20"
]
contactPoint 
{
  "fn": "Chet Hopp",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:chopp@lbl.gov"
}
dataQuality 
true
description The EGS Collab Experiment took place at the Sanford Underground Research Facility at the Homestake gold mine in Lead, SD, USA. Distributed fiber optic sensing temperature data is included in this dataset for this experiment. A single loop of custom fiber package was grouted into the four monitoring boreholes that bracketed the experiment volume. This fiber package contained two multi-mode fibers and four single-mode fibers. These fibers were connected to an array of fiber optic interrogator units, each targeting a different measurement. The distributed temperature system (DTS) consisted of a Silixa XT-DTS unit, connected to both ends of one of the two multi-mode fibers. This system measured absolute temperature along the entire length of fiber for the duration of the experiment at a sampling rate of approximately 10 minutes. This dataset includes both raw data in XML format from the XT-DTS, as well as a processed dataset with the sections of data pertaining only to the boreholes are extracted. The included report provides all of the relevant details necessary for users to process and interpret the data for themselves. Please read this accompanying report. If, after reading it, there are still outstanding questions, please do not hesitate to contact us. Happy processing.
distribution 
[
  {
    "@type": "dcat:Distribution",
    "title": "Raw DTS Data from AML.nc",
    "format": "nc",
    "accessURL": "https://gdr.openei.org/files/1428/AML_DTS.nc",
    "mediaType": "application/octet-stream",
    "description": "Raw distributed temperature data for borehole AML"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Temperature-corrected DTS data from AML.nc",
    "format": "nc",
    "accessURL": "https://gdr.openei.org/files/1428/AML_DTS_corrected.nc",
    "mediaType": "application/octet-stream",
    "description": "Distributed temperature data for borehole AML, corrected for calibration bath bias (please read the included report)."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Raw DTS Data from AMU.nc",
    "format": "nc",
    "accessURL": "https://gdr.openei.org/files/1428/AMU_DTS.nc",
    "mediaType": "application/octet-stream",
    "description": "dRaw Distributed temperature data for borehole AMU"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Temperature-corrected DTS data from AMU.nc",
    "format": "nc",
    "accessURL": "https://gdr.openei.org/files/1428/AMU_DTS_corrected.nc",
    "mediaType": "application/octet-stream",
    "description": "Distributed temperature data for borehole AMU, corrected for calibration bath bias (please read the included report)."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Raw DTS Data from DML.nc",
    "format": "nc",
    "accessURL": "https://gdr.openei.org/files/1428/DML_DTS.nc",
    "mediaType": "application/octet-stream",
    "description": "Raw distributed temperature data for borehole DML"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Temperature-corrected DTS data from DML.nc",
    "format": "nc",
    "accessURL": "https://gdr.openei.org/files/1428/DML_DTS_corrected.nc",
    "mediaType": "application/octet-stream",
    "description": "Distributed temperature data for borehole DML, corrected for calibration bath bias (please read the included report)."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Raw DTS Data from DMU.nc",
    "format": "nc",
    "accessURL": "https://gdr.openei.org/files/1428/DMU_DTS.nc",
    "mediaType": "application/octet-stream",
    "description": "Raw distributed temperature data for borehole DMU."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Temperature-corrected DTS data from DMU.nc",
    "format": "nc",
    "accessURL": "https://gdr.openei.org/files/1428/DMU_DTS_corrected.nc",
    "mediaType": "application/octet-stream",
    "description": "Distributed temperature data for borehole DMU, corrected for calibration bath bias (please read the included report)."
  },
  {
    "@type": "dcat:Distribution",
    "title": "EGS Collab DTS report.pdf",
    "format": "pdf",
    "accessURL": "https://gdr.openei.org/files/1428/EGS-Collab_DTS-report_3-24-23.pdf",
    "mediaType": "application/pdf",
    "description": "The report detailing the installation, results, and usage relevant to these data."
  },
  {
    "@type": "dcat:Distribution",
    "title": "Raw DTS XML files.zip",
    "format": "zip",
    "accessURL": "https://gdr.openei.org/files/1428/EGS-Collab_Raw_DTS_files.zip",
    "mediaType": "application/zip",
    "description": "Archive of all raw single DTS files. These are the raw output from the XT-DTS interrogator."
  }
]
DOI 10.15121/1971114
identifier https://data.openei.org/submissions/7537
issued 2022-11-08T07:00:00Z
keyword 
[
  "DFOS",
  "DTS",
  "EGS",
  "EGS Collab",
  "Experiment 2",
  "Fiber optic",
  "SURF",
  "Sanford Underground Research Facility",
  "XT-DTS",
  "characterization",
  "distributed sensing",
  "energy",
  "experiment",
  "fracturing",
  "geothermal",
  "hydraulic",
  "monitoring",
  "stimulation",
  "temperature"
]
landingPage https://gdr.openei.org/submissions/1428
license https://creativecommons.org/licenses/by/4.0/
modified 2026-07-29T20:54:59Z
programCode 
[
  "019:006"
]
projectLead Lauren Boyd
projectNumber EE0032708
projectTitle EGS Collab
publisher 
{
  "name": "Lawrence Berkeley National Laboratory",
  "@type": "org:Organization"
}
spatial 
"{"type":"Polygon","coordinates":[[[-103.7577,44.3488],[-103.7465,44.3488],[-103.7465,44.3544],[-103.7577,44.3544],[-103.7577,44.3488]]]}"
title EGS Collab Experiment 2: Distributed Fiber Optic Temperature Data (DTS)

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