Offshore aeolian transport across a low foredune on a developed barrier island

Karl F. Nordstrom, Nancy L. Jackson, Antonio H.F. Klein, Douglas J. Sherman, Patrick A. Hesp

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33 Scopus citations


Sediment transport across a foredune and beach at Ocean City, New Jersey, was examined to identify the effect of houses, dune topography, sand fences, vegetation, and wrack lines during an offshore wind. Houses are as close as 18 m from the crest of the 2- to 3-m-high foredune and are up to 9.0 m high and 12.8 m wide and spaced 4.0 to 5.0 m apart. Data were gathered during a 1-day study on 3 March 2003 with the use of 15 vertical sand traps, 13 erosion pins, and eight sets of anemometers placed 0.3, 0.6, and 0.9 m above the ground surface. Wind speeds 0.9 m above the ground ranged from 1.61 to 3.75 m/s. Trapping rates were negligible on the vegetated dune crest and up to 2.03 kg m-1 h-1 near mid foreshore. The highest rate of trapping was 2.4 kg m-1 h-1 at a <10-m-wide unvegetated area in the dune. Houses shelter the dune from offshore winds and might contribute to dune stability. Increases in wind speed in the offshore direction cause greater rates of transport on the seaward side of the dune where vegetation has not had time to become established. Dune vegetation, remnant sand fences, wrack lines, and the sheltered area in the lee of the seaward dune ridge can trap sediment moving offshore during relatively low wind speeds. Sediment deposited at these obstacles could contribute to deflation of the backshore, which is the primary source of sediment moved to the intertidal foreshore. Losses of sediment from unvegetated portions of the dune to the beach can be overcome by replacing sand fences and suspending beach raking until the calmer summer months.

Original languageEnglish (US)
Pages (from-to)1260-1267
Number of pages8
JournalJournal of Coastal Research
Issue number5
StatePublished - Sep 2006

All Science Journal Classification (ASJC) codes

  • Ecology
  • Water Science and Technology
  • Earth-Surface Processes


  • Buildings
  • Offshore winds
  • Sand fences
  • Sand traps
  • Vegetation
  • Wrack lines


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