This article is a US Government work and is in the public domain in the USA.
A qualitative assessment of microclimatic perturbations in a tunnel†
Article first published online: 20 MAR 2008
This article is a US Government work and is in the public domain in the USA. Published in 2007 by John Wiley & Sons, Ltd.
International Journal of Climatology
Volume 28, Issue 15, pages 2081–2087, December 2008
How to Cite
Salve, R., Krakauer, N. Y., Kowalsky, M. B. and Finsterle, S. (2008), A qualitative assessment of microclimatic perturbations in a tunnel. Int. J. Climatol., 28: 2081–2087. doi: 10.1002/joc.1697
- Issue published online: 14 NOV 2008
- Article first published online: 20 MAR 2008
- Manuscript Accepted: 2 FEB 2008
- Manuscript Revised: 10 JAN 2008
- Manuscript Received: 6 MAR 2007
- fractured rock;
- monitoring techniques;
Understanding microclimate dynamics in tunnels is important for designing, operating, and maintaining underground facilities. For example, for the geological disposal of radioactive materials, condensation of vapour should be minimized as liquid water can accelerate waste package corrosion and radionuclide release. While microclimate dynamics are known to be dominated by the advection of heat and moisture, additional factors may also be important, such as the presence of fractures or faults. We present data collected using a relatively inexpensive method that is under development to assess microclimatic perturbations underground. By combining standard temperature and relative humidity sensors with low-cost sensors designed to detect changes in water content, we were able to infer microclimate dynamics along a tunnel at the proposed geological repository at Yucca Mountain, Nevada. We observed significant differences in the pattern of condensation in a faulted zone relative to that of a non-faulted zone, suggesting that hydrogeologic features have to be accounted for when evaluating the microclimate dynamics of excavated cavities in fractured, partially saturated rocks. Published in 2008 by John Wiley & Sons, Ltd.