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      A rainfall loading response recorded at 300 meters depth: implications for geological weighing lysimeters

      Sophocleous, Marios; Bardsley, W. Earl; Healey, John
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      Commons_Sophocleous.pdf
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      DOI
       10.1016/j.jhydrol.2005.06.031
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      Sophocleous, M., Bardsley, E. & Healey, J. (2006). A rainfall loading response recorded at 300 meters depth: implications for geological weighing lysimeters. Journal of Hydrology, 319(1-4). 237-244.
      Permanent Research Commons link: https://hdl.handle.net/10289/3932
      Abstract
      Static pore water pressures in confined aquifers vary in response to ground surface loading changes, including precipitation and evaporation. Under certain hydrogeological conditions such aquifers can function as giant natural weighing lysimeters, referenced here as ‘geological weighing lysimeters’. The extent of the land area ‘weighed’ increases with aquifer depth and it is of interest to establish at what depth it is still possible to monitor surface water budgets. An 86 mm rainfall event produced a clear loading signal in a well in western Kansas at 300 m depth. The loading effect is quantitatively consistent with elastic deformation induced by the rainfall mass and suggests that geological weighing lysimeters could operate at considerably greater depths, thereby monitoring water budgets over a significant land area.
      Date
      2006
      Type
      Journal Article
      Publisher
      Elsevier
      Rights
      This is an author’s accepted version of an article published in the journal: Journal of Hydrology. © 2006 Elsevier Ltd.
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      • Science and Engineering Papers [3122]
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