Un experimento de campo y modelado numérico de un trazador en una playa de grava de Prince William Sound, Alaska

Translated title of the contribution: A field experiment and numerical modeling of a tracer at a gravel beach in Prince William Sound, Alaska

Qiaona Guo, Hailong Li, Michel C. Boufadel, Jin Liu

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Oil from the 1989 Exxon Valdez oil spill persists in many gravel beaches in Prince William Sound (Alaska, USA), despite great remedial efforts. A tracer study using lithium at a gravel beach on Knight Island, Prince William Sound, during the summer of 2008 is reported. The tracer injection and transport along a transect were simulated using the two-dimensional numerical model MARUN. Model results successfully reproduced the tracer concentrations observed at wells along the transect. A sensitivity analysis revealed that the estimated parameters are well determined. The simulated spatial distribution of tracer indicated that nutrients applied along the transect for bioremediation purposes would be washed to the sea very quickly (within a semi-diurnal tidal cycle) by virtue of the combination of the two-layered beach structure, the tidal fluctuation and the freshwater flow from inland. Thus, pore-water samples in the transect were found to be clean due to factors other than bioremediation. This may explain why the oil did not persist within the transect.

Translated title of the contributionA field experiment and numerical modeling of a tracer at a gravel beach in Prince William Sound, Alaska
Original languageSpanish
Pages (from-to)1795-1805
Number of pages11
JournalHydrogeology Journal
Volume22
Issue number8
DOIs
StatePublished - Nov 18 2014

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Earth and Planetary Sciences (miscellaneous)

Keywords

  • Alaska (USA)
  • Gravel beach
  • Numerical modeling
  • Tide
  • Tracer tests

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