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dc.contributor.authorRosas, Jorge
dc.contributor.authorJadoon, Khan
dc.contributor.authorMissimer, Thomas M.
dc.date.accessioned2015-08-03T12:05:00Z
dc.date.available2015-08-03T12:05:00Z
dc.date.issued2014-07-19
dc.identifier.citationRosas, J., Jadoon, K. Z., & Missimer, T. M. (2014). New empirical relationship between grain size distribution and hydraulic conductivity for ephemeral streambed sediments. Environmental Earth Sciences, 73(3), 1303–1315. doi:10.1007/s12665-014-3484-2
dc.identifier.issn18666280
dc.identifier.doi10.1007/s12665-014-3484-2
dc.identifier.urihttp://hdl.handle.net/10754/563632
dc.description.abstractGrain size distribution, porosity, and hydraulic conductivity were determined for 39 sediment samples collected from ephemeral streams (wadis) in western Saudi Arabia. The measured hydraulic conductivity values were then compared to values calculated using 20 different empirical equations commonly used to estimate hydraulic conductivity from grain size analyses. It was found that most of the hydraulic conductivity values estimated from the empirical equations correlated very poorly with the measured hydraulic conductivity values. Modifications of the empirical equations, including changes to special coefficients and statistical offsets, were made to produce modified equations that considerably improved the hydraulic conductivity estimates from grain size data for wadi sediments. The Chapuis, Hazen, Kozeny, Slichter, Terzaghi, and Barr equations produced the best correlations, but still had relatively high predictive errors. The Chapius equation was modified for wadi sediments by incorporating mud percentage and the standard deviation (in phi units) into a new equation that reduced the predicted hydraulic conductivity error to ±14.1 m/day. The equation is best applied to ephemeral stream samples that have hydraulic conductive values greater than 2 m/day.
dc.description.sponsorshipThe funding for this research was provided by the Water Desalination and Reuse Center and faculty discretionary funding by the King Abdullah University of Science and Technology.
dc.publisherSpringer Nature
dc.subjectEmpirical estimated hydraulic conductivity
dc.subjectEphemeral streams
dc.subjectGrain size analysis
dc.subjectMeasured hydraulic conductivity
dc.subjectStreambed sediments
dc.titleNew empirical relationship between grain size distribution and hydraulic conductivity for ephemeral streambed sediments
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalEnvironmental Earth Sciences
dc.contributor.institutionU.A. Whitaker College of Engineering, Florida Gulf Coast University, 10501 FGCU Boulevard SouthFort Myers, FL, United States
kaust.personRosas, Jorge
kaust.personJadoon, Khan
kaust.personMissimer, Thomas M.
dc.date.published-online2014-07-19
dc.date.published-print2015-02


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