Temperature Profiles and Hydrologic Implications from the Nevada Test Site

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Description

In this investigation, 145 previously recorded temperature logs from 63 boreholes on or near the NTS were examined. Thirteen of these temperature logs were determined to be suitable for the determination of heat flow values. Additionally, 36 new temperature profiles were obtained in the field, either to validate existing temperature profiles, or to provide additional temperature profiles for heat flow determination. Of these, 23 boreholes were found to have temperature profiles suitable for the determination of additional heat flow values from one or more intervals within the boreholes. Comparison of the previously existing and relogged temperature profiles, in general, displayed ... continued below

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88 pages

Creation Information

Gillespie, David March 1, 2005.

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Description

In this investigation, 145 previously recorded temperature logs from 63 boreholes on or near the NTS were examined. Thirteen of these temperature logs were determined to be suitable for the determination of heat flow values. Additionally, 36 new temperature profiles were obtained in the field, either to validate existing temperature profiles, or to provide additional temperature profiles for heat flow determination. Of these, 23 boreholes were found to have temperature profiles suitable for the determination of additional heat flow values from one or more intervals within the boreholes. Comparison of the previously existing and relogged temperature profiles, in general, displayed excellent correlations, and demonstrated the usefulness and reliability of existing temperature profiles from the NTS. Heat flow values for intervals contained within the 36 boreholes from which values could be determined ranged from a low of 8.0 mW m-2 to a high of 181.6 mW m-2. Vertical variations in heat flow values, within individual boreholes, were readily explained by the advection of heat by groundwater flow. Horizontal consistencies and variations in heat flow values between various boreholes were dependent upon the geologic setting of the borehole, and the effect of vertical fluid movement. Temperature profiles are extremely easy and inexpensive to obtain. Considerable hydrologic information can be determined from the examination of a single temperature profile; however, if sufficient spatially distributed heat flow values are obtained, a heat transport model of the NTS could be used to reduce the uncertainty of nonisothermal hydrologic models.

Physical Description

88 pages

Notes

OSTI as DE00841028

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  • Other Information: PBD: 1 Mar 2005

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  • Report No.: DOE/NV/13609-40
  • Report No.: 45211
  • Grant Number: AC52-00NV13609
  • DOI: 10.2172/841028 | External Link
  • Office of Scientific & Technical Information Report Number: 841028
  • Archival Resource Key: ark:/67531/metadc786742

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • March 1, 2005

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • April 21, 2016, 9:26 p.m.

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Gillespie, David. Temperature Profiles and Hydrologic Implications from the Nevada Test Site, report, March 1, 2005; United States. (digital.library.unt.edu/ark:/67531/metadc786742/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.