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Dakota Aquifer Program--Subsurface Hydrology

Optical-fiber temperature logging

Figure 1

Figure 1. Plots of temperature and geothermal gradient versus depth as obtained by the different logging devices in two boreholes. DTS data are in red, conventional log is in blue. Data are plotted at 1 m intervals with gradients smoothed by 2 m running average: A, Smokyhill borehole; B, Big Springs borehole. Major stratigraphic units and their lithology (lithologic symbols standard) are shown.

Smokyhill borehole plot

Big Springs borehole plot

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Kansas Geological Survey, Dakota Aquifer Program
Updated Sept. 30, 1996
Scientific comments to P. Allen Macfarlane
Web comments to webadmin@kgs.ku.edu
URL=http://www.kgs.ku.edu/Dakota/vol1/hydro/DTSfig1.htm