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Active Thermal Tracer Tests for Improved Hydrostratigraphic Characterization

Authors: Leaf, A. T.
Resource type:Composite Resource
Created:Apr 01, 2018 at 5:57 p.m.
Last updated: Apr 09, 2018 at 6:27 p.m. by CTEMPs OSU-UNR


Subsurface heterogeneity in hydraulic properties and processes is a fundamental challenge in hydrogeology. We have developed an improved method of borehole dilution testing for hydrostratigraphic characterization, in which distributed temperature sensing (DTS) is used to monitor advective heat movement. DTS offers many advantages over conventional technologies including response times in the order of seconds rather than minutes, the ability to profile temperature synoptically in a well without disturbing the fluid column, sensitivity to a wider range of flow rates than conventional spinner and heat pulse flow meters, and the ease of interpretation. Open‐well thermal dilution tests in two multiaquifer wells near Madison, Wisconsin, provided detailed information on the borehole flow regimes, including flow rates and the locations of inflows from both fractures and porous media. The results led to an enhanced understanding of flow in a hydrostratigraphic unit previously conceptualized as homogenous and isotropic.

Raw project data is available by contacting ctemps@unr.edu

Subject Keywords

DTS,aquifer,hydrogeology,fiber optic,CTEMPs

How to cite

Leaf, A. T. (2018). Active Thermal Tracer Tests for Improved Hydrostratigraphic Characterization, HydroShare, http://www.hydroshare.org/resource/72e257980f704c97819dda3459f4baa5

This resource is shared under the Creative Commons Attribution CC BY.


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The people or organizations that created the intellectual content of the resource.

Name Organization Address Phone Author Identifiers
Leaf, A. T.


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