000181508 001__ 181508
000181508 005__ 20180317092506.0
000181508 037__ $$aPOST_TALK
000181508 245__ $$aCapillary Effects on Groundwater Waves in Unconfined Coastal Aquifers
000181508 269__ $$a2012
000181508 260__ $$c2012
000181508 336__ $$aTalks
000181508 500__ $$aVideo of the talk available at the link given in the Additional URL
000181508 520__ $$aVarious types of Boussinesq model exist, including those that account for finite-depth aquifers and capillary effects. Such models are used to simulate propagation of groundwater waves (watertable fluctuations) due to, for example, tides. However, discrepancies remain between experimental data and theoretical results. We proposed a Boussinesq-type model that (i) accounts for combined saturated-unsaturated zone flow and (ii) considers both horizontal and vertical flow. The unsaturated zone flow was modeled using Gardner’s hydraulic functions. The model, first solved numerically, provided predictions that improved agreement with experimental data on the propagation of tidal signals in a coastal aquifer. An approximate analytical solution to the model was also derived. The analytical approximation shows that the unsaturated zone’s storage capacity permits watertable fluctuations to propagate more readily than predicted by previous models. This occurs because the exchange of water with the capillary fringe is minimal during the passage of groundwater table fluctuations. The propagation characteristics of the groundwater waves predicted by the new analytical solution were examined in detail with respect to amplitude damping, phase shift and over-height of the fluctuating watertable.
000181508 6531_ $$aCapillarity
000181508 6531_ $$aGroundwater wave
000181508 6531_ $$aCapping effect
000181508 6531_ $$aNon-hydrostatic approximation
000181508 6531_ $$aPerturbation solutions
000181508 6531_ $$aAtmospheric turbulence
000181508 700__ $$aKong, J.
000181508 700__ $$aShen, C.-J.
000181508 700__ $$aSong, Z.-Y.
000181508 700__ $$aLi, L.
000181508 700__ $$0240314$$aBarry, David Andrew$$g169209
000181508 700__ $$aJeng, D.-S.
000181508 700__ $$aLockington, D. A.
000181508 700__ $$0(EPFLAUTH)183280$$aStagnitti, Francesco$$g183280
000181508 700__ $$aParlange, J.-Y.
000181508 7112_ $$aHydrologic Discovery Through Physical Analysis - Honoring the Scientific Legacies of Wilfried H. Brutsaert and Jean-Yves Parlange$$cIthaca, New York, USA$$dMay 14-15, 2012
000181508 8564_ $$uhttp://parlangebrutsaertsymposium.bee.cornell.edu/$$zURL
000181508 8564_ $$uhttp://ecommons.library.cornell.edu/handle/1813/29556$$zURL
000181508 909CO $$ooai:infoscience.tind.io:181508$$pENAC$$ppresentation
000181508 909C0 $$0252101$$pECOL$$xU11221
000181508 917Z8 $$x169209
000181508 937__ $$aEPFL-TALK-181508
000181508 973__ $$aEPFL$$sPUBLISHED
000181508 980__ $$aTALK