Natural free convection in porous media: First field documentation in groundwater

Van Dam, Remke L., Simmons, Craig T., Hyndman, David W., & Wood, Warren W. (2009) Natural free convection in porous media: First field documentation in groundwater. Geophysical Research Letters, 36(11).

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Natural free convection is a process of great importance in disciplines from hydrology to meteorology, oceanography, planetary sciences, and economic geology, and for applications in carbon sequestration and nuclear waste disposal. It has been studied for over a century - but almost exclusively in theoretical and laboratory settings, Despite its importance, conclusive primary evidence of free convection in porous media does not currently exist in a natural field setting. Here, we present recent electrical resistivity measurements from a sabkha aquifer near Abu Dhabi, United Arab Emirates, where large density inversions exist. The geophysical images from this site provide, for the first time, compelling field evidence of fingering associated with natural free convection in groundwater.

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ID Code: 80132
Item Type: Journal Article
Refereed: Yes
DOI: 10.1029/2008GL036906
ISSN: 0094-8276
Divisions: Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: American Geophysical Union
Deposited On: 15 Jan 2015 03:13
Last Modified: 16 Jan 2015 05:56

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